Hirth engine forum. Other HIRTH ENGINES GMBH products ENGINES.

Hirth engine forum At Hirth we continually develop state-of-the-art technology applied to the proven two-stroke principle. This powerful combination of heritage, excellence and creativity has kept Hirth at the forefront of a competitive industry and market leader for two stroke propulsion systems. I'm aware that in the past hirths have had more than their share of headaches, but the consensus in some other forums I have read is that a lot of those problems have been My question, does anyone have first hand experience with a F33? I read that TBO is around a 1000 hours, compared to 300 on a Rotax 447, plus i've read that all 2 strokes are Any of you have any experience with Hirth engines ? Specifically, the Hirth 3503 as a substitute for the Rotax 582-99. Nano’s new Hirth F-23 engine (50 horsepower). The 33 Series air cooled two-stroke engines offer the ultimate power-to-weight ratios available in the 30-horsepower market. Consequently, Hirth has completely redesigned their engines from the drawing board up, specifically for aircraft use. 50 - 100hp piston engine 3503. 600 hour I would have posted this in the Homebuilt Forum, but I figured that since I am asking about an Ultralight engine, I should post here. 23 Series; 32 Series; 33 Series; 35 Series; 35HF Series; 41 Series; 42 Series; 42HF Series; COMPANY; TECHNOLOGY; CASE STUDIES; NEWS; CONTACT; CAREER; Customer support Sign in 2302 23 Series. 5mm Stroke 73mm HP 23hp@5250rpm Point Gap . At Hirth we continually develop state-of-the-art technology applied to Lean the high part power mixture but keep the same WOT mixture if you are at the EGT limit. 32 Series. A forum search showed very little in the line of Hirth, but it appears to be a note worthy candidate. automan1223 Active Member. There are other engines in that range, including the 28HP Hirth F33 and the new 35HP Aerocorsair Black Buill. Looking for a better than 100hp application for later down the line. We're having some trouble getting our engine started though. Makes the best choice for use in light and ultralight aviation, powered parachutes and all applications where weight could be an issue. We are very pleased to learn about your interest in the Hirth engines. Hirth Engines offer outstanding quality combined with unmatched performance and efficiency. From: gyromaxwell's current gyro . Just some of the reasons why Hirth Engines is the market leader in next generation two-stroke propulsion systems. For Sale and Wanted Scorpion Sleds and Parts. He apparently stripped it and obtained new parts to rebuild for a BD5 aircraft he was planning. Hirth. Hey guys, I just picked up a few boxes of NOS hirth parts likes heads cylinders and pistons. Come join the discussion about trails, racing, performance, modifications, Forums. It is my opinion that the engine was put together with mismatched parts or the wrong parts causing the engine to quit in flight. Premium Member. We are Greenwich +2 hours over here My nickname is Mannix. Best regards Siegfried Göbler -----But I have also 30 pages just from Finland only, regarding Rotax engine problems. Anyone flying this engine? Hirth Engines GmbH | 1,577 followers on LinkedIn. hirth 3203 65 hp with weight near 503. Since Hirth replaced the 2706 with the 3203 back in 2002, that means this engine is about 20 years young now. General Discussion . My question is, how reliable is this engine? In the '70s I grew up with 2-stroke road and dirt bikes, While no engine is ever 100% perfect and reliable, there are some better than others. The newest 4202 Heavy Fuel Engine of Hirth in the 13hp class offers the best power to weight ratio and performance on the top for your system. The Hirth F-33 is a single cylinder, two stroke, The engine runs on a 50:1 pre-mix of unleaded 93 octane auto fuel and oil. 1: 1 January 2010 I will be taking orders for a CDI ignition conversion for Hirth Fan cooled engines I have this set up in my 634 Hirth. [1] [2] [3] [4]The series is out of production and were replaced by the Hirth 3202 and The 35 HF is a water cooled, reed valve controlled 2-cylinder-inline-2-stroke engine with air assisted direct injection. com The 32 Series air cooled two-stroke engines offer the highest power-to-weight ratios available in the 65-horsepower market. Research indicates that Hirth has over 1000 engines in the field. 0: 0 30 HP Hirth 33 Series Engine / F33 AS. NOS Hirth 2706 today which has never been installed/run. Joined Nov 3, 2003 Messages 3,760 Location Oriental, North Carolina Aircraft 2p Tandem Air Command "Big Red" Total Flight Time 250. Sport aviation engines for Ultralights, Homebuilts, Please join our group and share your problems, successes, tips, concerns, photos and insights with other Hirth Flyers! The hirth engines are very good and durable but i think you might be pushing the limits with weight. (I'll bet most of you guys have never even heard of Boa-Skis A forum community dedicated to snowmobile owners and enthusiasts. 12-20-2015, 09:50 AM. from dif countries. stuart. This 634cc Hirth engine was used in some other sleds too, did anyone ever own a sled with this engine in it? Seems to have lots of torque. Although like I said it runs. Maybe 50HP is too much for the Legal eagle? CG issues? I like the 1/2 VW but just looking at options. Both of these engines had the muffler outside the engine compartment. General. Last edited: Aug 22, 2015. View Full Version : Ultralight engine options. P. All HIRTH ENGINES GMBH catalogs and technical brochures. That is the engine on my Dominator. Come join the discussion about performance, troubleshooting, trails, maintenance, Register on our forums to post and have added features! Membership levels include a FREE membership tier. 3507HF. It was manufactured by Hirth of Germany. Thread I have a hirth 3701 engine fuel injected with everything but gearbox. HIRTH ENGINES 2-stroke piston engine; Light aircraft piston engine; 10 - 50hp piston engine; do you have an engine model number? looks like . hirth battery size It has a 20 amp charging circuit, it burned up the key west regulator, I now have the correct hirth (VAPE) regulator. Home; SD-1; Engines; Hirth F-33 28HP – 2stroke; Hirth F33 – 28hp. Other. You may contact me through this forum, or on a direct line in South Africa: +27 11 7041907. 4mm or. CHECK OUT MY OTHER AUCTION ON A HIRTH 650CC RED BARON RACE ENGINE NEW OLD STOCK. #2StrokeGenius - Where high value engineering meets low cost and low maintenance | Hirth is a pioneer of two stroke engines for light and recreational aircraft, UAVs (unmanned aerial vehicles) including the leading heavy fuel propulsion system for maritime rotary VTOL (vertical takeoff & landing) unmanned I have a local scrap yard that has a hirth 292 and 338. Hirth Global Sales GmbH Tower street 3, Office Park 4, Top A15 A-1300 Vienna International Airport Austria 2302 23 Series. voir plan d’encombrement sur notre site internet ou celui d Hirth I'm looking for opinions on Hirth engines. just asking. The reason I asked rather than doing more searching, is because I was just looking for more info specifically on the F30 engine. German engineering company Hirth Engines specializes in developing two-stroke engines and adopted the 3DEXPERIENCE platform on the cloud to manage its data centrally. Engines . Last edited German engineering company Hirth Engines specializes in developing two-stroke engines and adopted the 3DEXPERIENCE platform on the cloud to manage its data centrally. Has anyone ever tryed a swap? The Hirth performance on a F-33 chart runs up to 6700 engine rpm, but has a plateau from 5500 to 6500 engine rpm where hp remains pretty constant and torque actually decreases slightly and fuel consumption increases 27%. Any input, history or experiences would be great. So, Air Command has been working on his engine while he's not there. Swap Meet. Hirth 2704, 52hp, 2. com www. would any of them fit my 300 crank replacement? I see here that the Hirth 190r - 191r - 193r - and 54r - 54r1 - r2 - r3 - r4 are all measuring 68mm stroke. Thread starter automan1223; Start date Mar 9, 2006; A. 23 Series; 32 Series; 33 Series; 35 Series; 35HF Series; 41 Series; 42 Series; 42HF Series; COMPANY; TECHNOLOGY; CASE STUDIES; NEWS; CONTACT; CAREER; Customer support Sign in I hope I can prove you wrong on the Hirth. Most of Shorty Long's MOD work went into the early Hirth engines. 015 Follower:innen auf LinkedIn. we wish. Mar 9, 2006 #1 I have a local guy I am Hirth engines are used widely throughout the world on ultralights, powered parachutes, experimental aircraft, gyrocopters, airboats, Hovercraft, UAVs, etc. I have no idea what wires do what. 00 . Home; SD-1; Engines; Hirth F-23 50HP – 2stroke; Hirth F23 – 50hp. I replaced it with a Rotax that lasted 99 hours. The first 3 I came up with are the Hirth 3203, the Rotax 582, and the MZ202. 10 - 50kg for light aircraft 2-stroke. I know that Hirths don’t get very good ratings on this forum , but maybe there’s somebody out there who’s good with them that would need this one. When I first built my Fisher 202 I started out with a 40 hp Kawasaki engine that lasted 10 hours. He drag raced it every weekend, Arctic Chat Forum is a community to discuss Arctic Cat 400, 440, 500, 650, snowmobiles, sleds, ATV's and more. Wondering if anyone has put a Hirth F-23 on an Eagle? I know I might get yelled at but 50 HP, 87lbs w/electric start. 41 Series. Join the fun! The 70-71 Moto-ski's used Hirth,JLO,and Sachs engines The Moto-Ski Zephyr is a favorite of the 1 lunger racing crowd. NEW FORUM; Hirth F-23 50HP – 2stroke. Loosened the flywheel nut and used a 3-bolt puller attached to the recoil cup threads. Rotax did their homework and provided charts with the proper carb jetting for different altitudes. Explore Our Forums. The Program Excellence industry solution experience provides the company with all the necessary functions and leads to increases in productivity and a continuous improvement in the quality of its Hirth redesigned the engine, but never said they were sorry or offered a refund. Join the fun! Re: Hirth 194R 338 engine « Reply #14 on: August 28, 2012, 03:51:20 am » I am going to modify one of these. The most powerful engine installed. I have a set of Affordaplane plans. Simple and modern 2 stroke engine from proven manufacturer. History: At about 5 hours TIS some exhaust weeping was noted around the LH exhaust port. Hirth Engines GmbH | 在领英上有 1,701 位关注者。#2StrokeGenius - Where high value engineering meets low cost and low maintenance | Hirth is a pioneer of two stroke engines for light and recreational aircraft, UAVs (unmanned aerial vehicles) including the leading heavy fuel propulsion system for maritime rotary VTOL (vertical takeoff & landing) unmanned Forum. The Program Excellence industry solution experience provides The 32 Series air cooled two-stroke engines offer the highest power-to-weight ratios available in the 65-horsepower market. The leading particulars of the first generation Jumo 004B engine which was in production and this advanced engine developed at Heinkel–Hirth a4 and the layout depicted in Fig. VerticalScope Inc. 200 hours on it when I purchased the gyro. #2 Lots of low end torque compared to a 582. #2StrokeGenius - Where high value engineering meets low cost and low maintenance | Hirth is a pioneer of two stroke engines for light and recreational aircraft, UAVs (unmanned aerial vehicles) including the leading heavy fuel propulsion system for maritime rotary VTOL (vertical takeoff & landing) unmanned Hirth Engines is acknowledged globally for unmatched engineering solutions achieved through industry leading German expertise, technology and innovation. Oil injection and fuel injection Forums. It was assumed to be leaking at the flange gasket, so the exhaust flange So with what Engine is it 235lbs? ==> Hirth F-33(28hp). Technical Discussion Areas. My friends 582 takes almost 4500 to get rolling with the 21" Nanco's on grass. 2 Pages. how reliable are these if well maintained? could this engine be as Forums. Thread starter Jim Chuk; Start date Apr 18, 2018; This site may earn a Hi all, a friend of mine had a 55 HP 3202 Hirth engine on his plane, and it building a 1970 634 f/c hirth jackshaft puma replica. I tried searching for Hirth F30, but the search tool drops the F30 since it is less than 4 letters. For Sale . 4202HF. 33 Series. pdf. Any of you have any experience with Hirth engines ? Specifically, the Hirth 3503 as a substitute for the Rotax 582-99. I plan to call John at Air Command today to get more info. Any help would be appreciated! Thank you! See less See more 1 A forum community dedicated to Ski-doo snowmobile owners and enthusiasts. PW_Plack Active Member. 59 F50 gearbox, pull start, dual carb, air cleaners, side exhaust with silver high performance coating, original fan cooling system and free-air cooling kit for tractor installation($430 new), 2 EGT The gearbox input shaft bearing let go; because the previous owner had operated it low or out of gear oil. New to me Kolb Firestar that came with a new unmounted Hirth 2702 engine. New posts Search forums. The "Super Kat" decal was added from a previous owner. Monitored by certified LSRM Avez vous une doc tech pour l'implantaton du moteur et/ou chassis, pour voir si il est possible de le monter dans le FK12. builders, i am most familiar with rotax 503 and 447 and i like them from fixed wing and ppc. Last edited Main Forum. A forum community dedicated to all snowmobile owners and enthusiasts. hirth engines. I have the clutch already removed. I read comments by a Hirth dealer who had sold, serviced, and flown hundreds of r/hirthengines: A forum for discussion of maintenance on Hirth engines being used in aircraft and UAV applications. A forum search showed very little in the line of Hirth, but it Any engine can have problems, usually in how it was taken care of, and how it was used or repaired. Hirth engines often require a lot of fiddling to get them set up right. 35 Series. What is the Smallest HP Engine you have seen used? ==> Hirth F33(28hp) First post on the forum, I've got the Eagle XL plans and am planning out the project to get started this winter. The 23 Series is an air cooled two-stroke engine that makes an excellent choice for light aviation devices weighing up to 120kg. Scorpion Snowmobile Forum. Equipment - Parts & Components. 016 inch plug Bosch M225T1 plug gap . In the US we have a good Hirth Your best bet is going to be reach out to Matt at rpe and ask for a data sheet on both. One very critical point on a Hirth. Help Hirth 3203V, 65hp ? Thread starter bavata; Start date Feb 15, 2011; Southern Airboat Gallery Archives The hirth engines are very good and durable but i think you might be pushing the limits with weight. hull with 3 adults is asking alot from a 65hp. 2-Stroke Aircraft Engines hi im looking for some advice on hirth 65 hp engine ,im looking to buy airplane which has hirth mounted ,it has fuel injection and has around 10 hours total ,id like to know some pros and some cons on this engine ,I saw the plane flying ,the owner has been using A question was asked pertaining to performance of 2-cycle engines in another thread The Hirth (50 HP) 2-cylinder F-23 With 2. His F-30 FI blew apart a cylinder (at 80 hours) and put him down in a lakefront park in Chicago on a slow news day. Are there any close up Pics of the Hirth Roller Bearing Crankshaft used in the 4 Cam Engines? showing the separate parts and the ↳ Forum Test Track; ↳ Website / 356Talk I am currently having a hirth 3203 65 hp engine installed on my c2cws. It has a 191R 300 Hirth engine. I've often thought building something like a Titan Tornado and using a 100 hp Harley Davidson You're probably right. 020 inch Fuel/oil ratio 25:1 Hi All,Just doing a little reseach on the Rotax and Hirth line of engines. Fuel My dad bought a brand new '71 Panther with the 634cc Hirth engine. 2-Stroke Aircraft Engines . The Finish CAA visited the Rotax factory in Austria to discuss EAA Forums > Aviation Interests > The Ultralight Strip > Ultralight engine options. Recommended time between overhauls is 1000 hours. Wheel and Tire i need a new track for it because it is missing a bunch of the metal cleets and it is falling apart. I really like my Hirth 100 hp Word of advice! Use a torque wrench for everything you do with it!!!!! Redneck wrist wrenching is a major NO No. , most with Italian Polini engines. 1 Compressor Section. More Categories; All Posts; My Posts; Jeffrey Boyd. what is the best way for finger ports, all the way up to the existing trasnsfers, or part way to the transfers and holes in the pistons. Alan_Cheatham Member. 00 In Stock Hirth 3203 2 cycle 65hp Engines Brand New Hirth 3203 2 cycle 65hp Engines with Warranty $3,950. Tightened a little more than I felt comfortable andnothing. Is this a red baron? Are they performance motors? Thought I would share my thoughts on the Hirth 3202 so far. Thread starter Alan_Cheatham; Start date Apr 13, 2004; A. other than the above mods engine was stock. The concept and aerodynamic I have recently been looking around at engines in the 65hp range. Come join the discussion about parameters attained for the engine were a thrust of 13 kN 2940 lbs at a rotor speed of 10,205 rpm. One good way to evaluate a engine for gyro use is to go to a fly-in and see what others fly. Tonight I ran across a Hirth engine with a red crankcase, 650cc air cooled, model number 172r41. 1969 Mark III 400 with Sachs 368/370 single and The engine, if original, was a twin 634cc Hirth. There are many manufacturers of autogyros using the Hirth engines and we would be pleased if you too will choose a Hirth engine. The attached write up came from a Hirth guy on his thoughts about Fuel Injection and Oil Injection. through the G-40 gearbox DO NOT operate the engine between 1700-2200 rpm. i have a stock exhaust but i am looking to get a little more proformance out of the engine that i just rebuilt. He The 35 HF is a water cooled, reed valve controlled 2-cylinder-inline-2-stroke engine with air assisted direct injection. That being said, I origonally designed the Jyor-Deer with the 503 as the motor, so I have one sitting on my workbench ready to go if I need it! The 35 HF is a water cooled, reed valve controlled 2-cylinder-inline-2-stroke engine with air assisted direct injection. Joined Oct 30, 2003 Messages 8,573 Location West Valley City, Utah, USA. Innovation Combining Power and Reliability with State-of-the-Art Technology. Mar 08, 2022. Monitored by certified LSRM r/hirthengines: A forum for discussion of maintenance on Hirth engines being used in aircraft and UAV applications. This liquid cooled 2-stroke powerhouse offers maximum power-to-weight ratio and extreme operational range in all conditions. 2 stroke engines dont make alot of tourque and tourque is what moves weight a 13ft. Thread starter Texas Armadillo; Start date Jan 18, 2005; T. When an engine overheats the amount of expansion between these parts is greater than allowed - the . It will meet the weight limit of 278 lbs with the F23(50hp), but it will zip right past the 63 MPH. It had approx. 14 10. Hopefully those issues will go away with the new engine designs. If I could figure out how to post a pic on here, I would post a pic. The F23 is different from the standard line Hirth motors, and I hope it does not let me down. Simple, light and modern 2 stroke engine from proven manufacturer suitable for pilots up to 90 kg. But I found this article name: ROTAX vs Law suits get company's attention. I know the reputation of Hirth engines are less than stellar. Gonna vibrate more than a 2 cylinder engine, though. It can be a kit or complete, and standard comes with a Hirth F33 2-stroker. Are this a valuable engine? As I said I know nothing about them, but here about red barons from time to time. Thanks for your input. Our JET-A1 Engine Series prove their reliability over the last couple of months in several The home of 2-Stroke engines. I don't want to assume, but the only reference I can find is 693 engine type for a 1300 Carrera engine. I have a Hirth 2706 (65hp) on my gyro and it seems to operate flawlessly, The Hirth 2704 and 2706 are a family of in-line twin cylinder, two stroke, carburetted aircraft engines, with optional fuel injection, designed for use on ultralight aircraft and especially two seat ultralight trainers, single seat gyrocopters and small homebuilts. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Discussion of 4-Cam Type 547 engines (and all the Fuhrmann racing variants) and cars Hirth Cranks #1 Post by John Clarke » Fri Jan 21, 2022 8:23 pm. but Hirths problems seem to be obvious manufactoring defects or poor QC A Hirth did get a friend of mine some major TV time. Hirth F30 problems. 00 You may want to consider that the most common use fo the Hirth engine is in motor gliders. Hirth Engines has launched a global market focus programme dedicated to providing customers with the perfect fit for their propulsion needs. Dana There's been a lot of commentary on other aviation sites about issues with the Hirth engines. Anyway some of them I know what they are but is there a list that I could find that says what model number is this engine cc size? Also the pistons are all marked with 014-30 or some numbers like that. What 50hp Engine does it make Part 103 254lbs? Hirth F-23(50hp), manual start, reduction drive, no options/upgrades. HIRTH There are 8 products. Brand new never run . The home of 2-Stroke engines. Ideally suited for use in light and ultralight aviation, hovercraft, gyro and helicopters and all applications where weight could be an issue. As far as up front cost: Hirth F-30ES @ 105hp $5,800. In Memoriam. Hirth Engines GmbH has been a name synonymous with aviation innovation since 1927. 5mm or . I really like all three brands although I tend to be a Hirth fan. Actually 30HP is on the large side for a PPG unless you're a big guy of flying tandem. 634's are very easy to MOD out, but ya gotta go easy due to the weaker crank design. aeroschmitz. I was looking in the two cyl section. Offers an ideal choice for use in light and ultralight aviation, hovercraft, gyro and helicopters and all applications where weight could be an issue. Prop does not clear the frame by 1/2". 30. I figured about the same on the 55 hp hirth. i have and old 1971 634 Hirth Puma MOD, Low speed needle jet (the plain straight blade screw head closest to the engine) 3/4 turn out Arctic Chat Forum is a community to discuss Arctic Cat 400, 440, 500, 650, snowmobiles, sleds, ATV's and more. Oct 15, 2021. Hirth Engines GmbH Max-Eyth-Straße 10 71726 Benningen am Neckar Germany. I seems they would really be pushing the sale of parts and have them F23 exhaust port flange/spigot defect. I have a 338cc hirth engine that runs great and is set up on a 1972 arctic cat panther. 42 Series. I would consider the infamous MAC as more reliable than a Hirth. He should be able to answer any other questions you have about either gear box as well. The engine can operate above the published WOT egt limit at lower power settings. Download PDF • 30KB. #1. Finger ports are the most common approach to modding, which is achieved by running the ports vertically on the intake side of the cylinder stopping at the height of the transfer ports and extending them into the base of Forums. 1969 Mark III 400 with Sachs 368/370 single and electric start. Aug 23, 2015 Hirth Aircraft Engines for sale. 10 - 50hp piston engine F23 . Engine Model 200R Bore 80. Help Support Home Model Engine Machinist Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. I recently discovered the "Hirth 3701 ES/VS, a liquid cooled, reed valve controlled 3- cylinder-inline-2-stroke engine with electronic injection or carburettors and Nikasil coated cylinders. The Fora platform includes forum software by XenForo. Hirth 3701 100hp engine fuel injected. Hi all, a friend of mine had a 55 HP 3202 Hirth engine on his plane, and it seized a piston. The engine has never let me down. It will tell you gear ratios and mounting dimensions. Need to sell asap $5500. in Hirth F23 Engine. S. 653 Follower:innen auf LinkedIn. That made sense- I suspect the Fusioncopter guys had purposely set the mixture on the rich side while the motor was bedding in. For those in the 30-horsepower market, the 33 series offers the ultimate power-to-weight ratio. $3,950. I have heard for years that the first snowmobile engines from Europe (Sachs, Hirth and JLO) were industrial engines, not made exclusively for the snowmobile industry but adapted to snowmobile usage. Rotax 912S @ 100hp $12,995. This attempt they are safety wiring the head bolts so they can't back out. Thread starter Jim Chuk; Start date Apr 18, 2018; This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. Suitable for heavy pilots and operation from short or I was just checking about this Hirth engines and I found good things about this engine over rotax . Full Forum Listing. It was the F7 of its day. TIS: 15 hours. Hirth Engine Design Features “Every Hirth engine has a chromoly crank shaft and Nikasil cylinders,” he said. The motor is complete aside from carbs. Come join the discussion about performance, racing, troubleshooting, trails, maintenance, riding tips, modifications Forums. 10 - 50kg for light aircraft for helicopter. I would look to reinstall the fuel injection and get it operating correctly. com Forums. Fuel injection tips / info from Matt. 375 on it now. P: +49 7144 8551 0. The cost to fix their problem was $4,000 IIRC, and the engine continued to give trouble. prior to gearbox and accessories with a 1000 hour TBO. 10 - 50hp piston engine F33 AS. A forum community dedicated to snowmobile owners and enthusiasts. Founded by aviation pioneer Helmut Hirth, the company started as an experimental workshop in Germany, quickly gaining a reputation for producing reliable, high-performance aircraft engines. Thrust isn't measured (and of course is propeller dependent). hirthengines. Every other regular production model up to then was a Hirth or JLO. Hirth Engines GmbH | 2. easiest starting 2 stroke I've seen. Joined Mar I know that rotax makes fine engines. Since Hirth replaced the 2706 with the 3203 back in 2002, that Forums. But I would imagine this and other forums are putting a hurt on Hirth profits anyway. Fuel injection tach signal. Fuel Injection / Oil Injection write up. . Hey Guys, We're just finishing up an SD-1 Minisport, trying to run in our engine before we start flight testing. Can anybody tell me what the best new spark plugs are to run in a 1970-1971 634 Hirth engine? Thanks. Gas (ethanol vs Non and avgas) write up from Matt. Skyhawk28 Engine / Drivetrain questions about 634 hirth I have a 1971 arctic cat panther 634cc hirth with a single tilloston carb. Cooling: air Ignition : CDI Propeller: Wollner, DIA. Forum. Joined Nov 14, 2003 Messages 1,970 Location Dallas Except for the ejecting spark plug problem due to hot running heads, what do you users of the 2706 think of the engine? I have one and I'm trying Forums. Much interest in an old Hirth engine? Has clutch and carburetor. 1,25 m, two blade fixed, wood 1970 panther 399 kohler/hirth? Jump to Latest So i recently purchased a 1970 panther with what the guy says is a 399 kohler engine. HIRTH 793 HONKER . petertha Well-Known Member HMEM Supporting Member He I believe quite a few people have used these engines for ultralights. Jeffrey Boyd. HIRTH ENGINES 2-stroke piston engine; Light aircraft piston engine; 10 - 50hp piston engine; Forums Board Topic Home; Help; Search; Calendar; Media; Login; Register; The World Famous Bull Sessions » Vintage Sleds, Vintage Author Topic: 300 Hirth Engine Question (Read 7687 times) racerray Guest; 300 Hirth Engine Just relaying another Hirth engine success story. Oh, and yes, they've been in contact with Hirth. Rules of this forum are strictly enforced! Just some of the reasons why Hirth Engines is the market leader in next generation two-stroke propulsion systems. This is what Hirth factory wrote me once after 15 pages of accidents due to Hirth engine malf. Hello Friends, I'm getting fatter surfing the web! I've spent hours all over the internet, as well as this forum, looking for every engine applicable for Forums. Mini-Airboats . Mounted the engine with the spacers provided then mounted the prop. Dear Sir, first of all we ask you to excuse the delay in answering to you. Arctic Chat Forum is a community to discuss Arctic Cat 400, 440, 500, 650, snowmobiles, sleds, ATV's and more. REDHORSE556CES Senior Member. I do not know the whole story but he was able to get a grand back from the same distributor that sold it to him. Any experiences? Good? Bad? Better alternatives? My project needs an engine in the 55-60hp range, and I've some concerns about weight (a VW would be too heavy), so I've been giving some serious consideration to the Hirth 3202. Serial no:MO-01000570. So they must be doing something right. Recreational Power Engineering had just fabricated the mounting adaptor plate to match the Kolb frame. Texas Armadillo Pilot Wannabee Joined Oct 18, 2004 Messages 273 Location There was some talk going around about the Hirth engines like my 3203 spitting the spark plugs out. The jet needle was set at the 3rd slot down, whereas the Hirth manual specifies first clip position. Hirth, Rotax Other HIRTH ENGINES GMBH products ENGINES. 5:1 reduction, on a 485 pound gross RW-2 that I fly which has nothing superfluous-- like a tach, fuel gauge, or flow meter-- just four temp sensors. At this point the tiny (8mm?) bolts are starting to bend and I worry about breaking the flywheel. One shot the sparkplug, threads and all, right out of one of the cylinders. HOME; ENGINES. Not a real speed demon in the day, but a real workhorse of an engine. Use a Torque Wrench FOR EVERY THING !!! IF this one has a clutch driven prop. Contact Us. WOT= Wide Open Throttle. Plastic plugs still in everything . I believe I'm willing and able to do the regular maintenance required with a two-stroke Engine: Hirth F23. hull with 3 Recreational Power Engineering, Hirth F-23, Hirth F23, 50 horsepower, 50hp, aircraft engines, mro, 2-cycle engines, Blue Max 2-cycle oil, propellers, parts and service for Hirth engines. Based on the well-known S1211 and S1212 engines – which have been proven in theatre – the new 42 Series have been updated with the latest in engine technology providing a top shelf propulsion system that meets the demanding requirements of Onderwerp: [356Talk] Hirth Roller Bearing crankshaft questions I have a Hirth roller bearing crankshaft which has markings on the counterweights that read "693". In the early years the snowmobile industry was so small that they did not have much of an influence on the engine manufacturers. I reset to the first (top) slot, did a ground run then a longer flight to check operation, temps and fuel burn. alum. This means 634 (engine size) H (Hirth) PU (Puma) M (Mod) Arctic Chat Forum is a community to discuss Arctic Cat 400, 440, 500, 650, snowmobiles, sleds, ATV's and more. I did find out from the guy that e-mailed me that I have a 71. What's new. It was one cleat throwing son of a gun Arctic Chat Forum is a community to discuss Arctic Cat 400, 440, 500, 650, snowmobiles, sleds, ATV's and more. Normally a Hirth air cooled engine should read between 350F to 410F on a cylinder head temperature gauge (CHT). sdsnocop Well-known member. Equipment - Parts . Seeking more power and better reliability, Nano is now offering the JK-2 with a two cylinder two stroke Hirth F-23 engine, which puts out 50 horsepower. The 35 Series liquid cooled two-stroke engines offer the maximum power-to-weight ratios available in the 70-horsepower market. I have always wondered why Moto-Ski used the Sachs engine in only one sled- the 1970 Grand Prix 340. General Board for Scorpion Snowmobile Discussion. Re: Hirth F-23. 3K views 7 replies 1 participant last post by **DONOTDELETE** Jan 12, 2001 Working on a Hirth single and trying to remove the flywheel so I can get the ignition tuned up. Hi guys I have a small 14hp hirth f 33, it seized two times ,i still do not know why! Around the exhaust screws the wall is so weak man can not drill up to the next size /10 / and install a bigger screw in case of a problem, the crank made to unreparaable you should buy the whole thing for I guess I STILL have a bad taste in my mouth about Hirth engines, from back in the Boa-Ski days of the 60's. These include engine models independent of mounting 634 Hirth spark plugs. 50 - 100hp piston engine 3202. The engine runs for 15 minutes, glides for an hour, and starts the cycle all over again. Hirth engine/gearbox help needed. From what little I know, the engine is solid for 15 minutes at a time. We distribute the factory-recommended BlueMax two-cycle lubricant, injected and pre-mix type. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Hirth Engines GmbH | 1. Trophy Room. Hirth has a good fuel enjection system. Rotorcraft. #2StrokeGenius - Where high value engineering meets low cost and low maintenance | Hirth is a pioneer of two stroke engines for light and recreational aircraft, UAVs (unmanned aerial vehicles) including the leading heavy fuel propulsion system for maritime rotary VTOL (vertical takeoff & landing) unmanned Overall, Hirth’s goal for the future is to provide the military, maritime and civilian markets with an advanced and robust VTOL engine that can compete with their fixed wing counterparts on endurance while providing major advantages in terms of logistical resources and minimising the impact of space and manpower needed to operate and maintain the platform. Trying to get the inner pulley off. Join the fun! Overall, Hirth Engines was fast to react to the crisis and restrictions that were enforced in Germany. 5" NEW FORUM; Hirth F-33 28HP – 2stroke. hirth 2706 65 hp hi im looking for some advice on hirth 65 hp engine ,im looking to buy airplane which has hirth mounted ,it has fuel injection and has around 10 hours total ,id like to know some pros and some cons on this engine ,I saw the plane flying ,the owner has been Scorpion Snowmobile Forum. 23 Series. however i would like ideas about 2 other engines for a gyrobee. I called Rec Power and they said people were Hello Friends, I'm getting fatter surfing the web! I've spent hours all over the internet, as well as this forum, looking for every engine applicable for Forums. A 1/2 VW is a possibility, but I'm not sold on it. An air cooled two-stroke engine offering 1000 hours TBO at 75% power, the 33 Series is a great propulsion solution for use in light and ultralight aviation, powered parachutes, and other applications where weight is significant. A friend of mine who flies a kitfox with a hirth F30 had enough of his "Hirth" experience at 66 hours gave up and is now going Rotax. i have it but a part in it is busted. info[at]hirthengines. Jump to Latest stored inside though with a wide variety of engines 292 kawi 303sach 3something JLO 340 Hirth and a 399 kawi so I am just lookin for a place to start the 292 kawi and the hirth look to have the fewest miles on them, A forum community dedicated to snowmobile owners and enthusiasts. Talking about Hirth engines, I have read in many forums that they are a PAIN IN THE ASS! There is a guy in my field that have a Autogyro with a F-30ES this is the 110hp Fuel injected, fan cooled. Related Searches. There is approx. With over 90 years’ experience in producing two-stroke engines we guarantee impeccable Hirth Engines GmbH Max-Eyth-Straße 10 71726 Benningen am Neckar Germany. Hirth 2706 opinions. Thanks! According to Dandar, Hirth’s specific Hirth engine design features are what make it more reliable: chromoly crank, Nikasil cylinders and special piston porting, features Dandar says “really add up to high reliability”. it has a 634 hirth engine its missing the recoil. What are your Forums. Forums. And I appreciate anything that anyone can tell me about my sled. See attached for folks that have the Fuel Injection option. At 3000rpm I was halfway down the runway before I realized it. Compare (0) Showing 1 - 8 of 8 items Quick view. Thread starter REDHORSE556CES; Start date Mar 26, 2005; R. He's had two inflight engine failures while in the pattern over Caddo Mills recently. piston becomes too tight in the cylinder and the piston "seizes' creating permanent damage to the piston and . Snowmobiles: Brands, Performance & Modifications. He always use to have some problem with it until a few month ago when the engine completely stop in the air forcing him to a emergency landing. We were quick to adapt the necessary safety precautions for our staff to carry on with their work and provided the infrastructure to offer . Thread . Join the fun! Show Less . Now, over 20 Nanos are flying in the U. just looking for some help on identifying all this 2302 23 Series. S. Hirth engine. We are open Monday thru Friday 9-5 EST and weekends by appointment. 4mm but I cant find you engine _____ found it. Featured content New posts New profile Hirth F23 Hirth F23 Hirth F23 Tractor 45 HP 78 lbs. I have been advised that the Hirth 2703 is no longer being built. 2 stroke. One is a Hirth F30 engine, in boxes. Here is our engine, a 2 stroke Hirth F-23: We've had trouble Hirth engine Jump to Latest 4. Based on the well-known S1211 and S1212 engines – which have been proven in theatre – the new 42 Series have been updated with the latest in engine technology providing a top shelf propulsion system that meets the demanding I know absolutely NOTHING about Hirths. As for Hirths, I remember that at Bensen Days 2004 alone there was 3 gyros that had engine failures or problems that were using Hirth engines. PDA. Rotax Vs. [1] [2] The F-33 produces 22 hp (16 kW) at 5200 rpm and 28 hp (21 kW) at 6500 rpm. Forums Board Topic Home; Help; Search; Calendar; Media; Login; Register; The World Famous Bull Sessions » Vintage Sleds, Vintage Author Topic: 300 Hirth Engine Question (Read 7687 times) racerray Guest; 300 Hirth Engine Forums. Fuel Injection / Oil Jeffrey Boyd. Engine is currently NOT electric start. The plans show a Rotax 477 engine mount, but I understand that Rotax (along with everyone else) has gotten out of the 2-stroke Ultralight (UL) engine business. People give the Engine a bad rap without ever trying it. View: Grid; List; Sort by. Fuel injection tips / info from Jeffrey Boyd. rbnp gfnb owcsfn nzbkai gnuio arvex pdsln ttznb mtowq poqspnpd