crankshaft

For those who have a lathe and have turned down a crankshaft (clutch side). What rpm did you use? Thanks

i have the original torque conversion set up but do not know how to assemble it properly and i am lost as to how to put it together. the 212cc prediter engine on it has an oil leak. its running down the crankcase cover out of the crankshaft bearing on the drive train side...

I'm looking for a good A400/A490 crankshaft for a motor I'm building for my 59 Bug. Anybody got one that they would be willing to part with? Willie

I have a Predator with the 3/4" shaft and a dual-sprocket clutch setup that is for a 7/8" shaft. Would an adapter sleeve work for this, or would I just be creating a time bomb? If it matters, the clutch is from a 1969 Rupp with the two-speed jackshaft. 'Hoping to avoid spending $$ (as...

I have a HS40 engine which I am rebuilding for my 1970 Rupp Roadster. Does anyone know what is the correct length of the crankshaft which the 1970 Rupp roadster should have? Thank you

Hi I was wondering if anyone has one to sell or knows where to buy one. OldMiniBikes warehouse no longer has them and I have a project on hold till I get one. Any help would awesome thanks.

I had posted about swapping cranks after cracking open a Tec H60 and finding the rod in tiny pieces and the main journal looking nasty. I automatically assumed the crank was toast...not necessarily. As I was searching for a replacement crank, I happened upon another forum's thread about...

Dr. Fruitloops just bought another H60, and it needs a standard length (2 1/4 or close) PTO. Let me know if you have one to spare. P/N Tecumseh 31827 or equivalent Thanks

Anyone ever use this? Just looking for something to hold the crank still so I can torque the flywheel nut. EZBORE.NET: crankshaft lock for your Honda or clone small engine

Looking for a crankshaft for a 5 hp Briggs raptor part 555204

I recently got a clean, low hours HS50 67061A (1975 I believe). Can the original 1" crankshaft be replaced with a 3/4" crank? I've seen a thread that discussed machining the 1" crankshaft down, but if replacement is possible with no resulting engine damage, that would be my preference. I may...

I have a good 4 horse Briggs that came off a tiller. I am going to put it on my CAT 250X that I am piecing together. I plan to paint and detail it and add the 3HP stickers so that it looks "correct". It has the correct diameter shaft but it is a little short. I don't remember how much... I will...

Looking for a Tecumseh H70 3/4 crankshaft. I would be interested in a H70 short block too. Let me know what you have. Thanks

so im looking for a little bit more power(torque) out of my motor. Is it worth it getting a .060 stroker crank? It only turns a 212cc into a 218. Or should i go with a .175 or will that be too much? And how exactly do you balance a stroker crank??? Engine has high lift cam and big race...

Well hello, it's been sometime since I've posted! I need advise on how to change the crankshaft bushing (part # 32680A) on a tec. H-70. I do not have the Tecumseh tool to help in this endeavor. Any input would greatly be appreciated! Many thanks Paul

Hi everyone, got a problem, i have a tecumseh H50 motorsport crankshaft. its the 1 inch rod journal. well i managed to snap off the fly wheel nut. my thought is to take it to a machine shop and have the flywheel side drilled and tapped at 1/2 inch 20 . a stud would be placed in the crank with...

What is a max amount of crank endplay on a hemi when cold? Thanks

I have a 1970s HS40 crank that has bunged threads on the flywheel end. I cannot get the flywheel nut to even start threading on. I am hoping to get a die and clean them up. Does anybody know what thread this is? Thank you for any help. Michael

weve been redoing some of the 8-10hp motors,w 1 inch shafts, and we are having some serious problems trying to decipher which cranks to buy to Replace the cranks in the motors now. first motor is a 8hp?? sears snowblower -1 inch shaft no Pto bolt hole. 143666032 unknown year maybe? 77 this...

I have an h25-25188g motor and unless I can find another similar motor I am planning on doing a rebuild. My question is that should I replace the crankshaft bushings and what are the tolerances of these bushings? It appears that they are not being produced anymore and would much rather reuse...