Ok well we picked up that 440 fuji engine for cheap.. Im thinking ill keep it and get it running. It was stuck and wouldnt turn over. I got it home and tore it down so fast haha.. Got the cylinder off, wasnt stuck on the pistons. So i figure its the bearings. Yep both bearings on one side are junked. One a bunch of pieces of it fell out after i took it out of the case haha..
I have that 440 fan, and since all these twin fuji engines use the same cranks i might just use that one. But i still wanted to mess with that 440 fan, anyone got a fuji twin crank for real cheap? Dont need to be perfect, but usable.
Other than the bearings its alot of good parts and easily fixable i believe.. Well actually it started rusting a little from sitting, just on the rings. Quick hone to the cylinders and clean them up. Clean the pistons and replace the crank and its good to go. Water pump is good too.
Got it complete with cars, cdi, water pump, recoil, motor plate etc. No clutch tho which would have been nice. What will it do if i put the 440 fan clutch on it? How will it react to that? Since the clutch it set up for less power obviously it was on a fan..
I dono i might fix it and throw it in the sled that i converted to liquid for the 500 that i sold before even using in the winter..
Now im thinking of the same shit i was about the 440 fan engine, can i do that paper bag trick to up the compression?
Heres a couple pics, one piston is a little scored i guess. I checked the 440 fan pistons and they look to be the same bore, i guess they are? But the fan one seems to have just a little bit longer skirt on it. Could i use the fan ones or not?
If it wasnt for the damn inside bearing being messed up i could fix both engines. It was prolly blown up before and they didnt clean out the bottom so it fucked the bearings up or something, like debris went down there maybe? I dono..
How will that affect the 440 fan clutch on the 440 liquid? Will it possibly rev up too high or something? Or will it engage quicker? I think the engagement has to do more with the spring tho.. Will it work ok as is?
Ive got either 34 or 38mm carbs. What would be better? It came with the stock 34mm and i got the 38s off that 500 i had. The 509 really isnt much bigger than the 440. Seems like 38mm is kinda big for the 500 too. Is there any advantage between the two?
One more thing, I just want to make sure that i can just get a bearing for the crank like at a hardware store or sometihng, doesnt have to be a special bearing? I wana get one soon so i can throw that engine together.
Is it pretty spendy to have someone replace the bearings on a crank? If it wasnt a middle one that went out i could do it myself.
How do you take a crank apart? I got that old rusted ass 583 crank and want to take it apart, just for fun/experience.
Good luck getting cheap bearings. For my Fuji 400 the bearings on the end of the crank were $16 apiece from the bearing store, and the mag side needed to be pressed on. I think the interior bearings need to be from Polaris. I'm not sure though. I might be thinking of something else.
Well the one crank just needs the one bearing, so 16 will be doable i guess, but more than i wana spend on a single bearing. Maybe i can find one cheaper but i doubt it.. The inside bearings look the same as the others but i could aslo be wrong haha.. Your crank shaft is the exact same as mine so if it is the one your thinking of im sure its the same.. Did you replace all of them?
I just did the crank-end bearings. I think you can do the clutch side without a press. I think you can get cheaper bearings than I got. I got abec 9 or something which was a higher grade bearing than the factory spec. I probably had the option to get cheap-ass Chinese bearings for practically nothing, but I never buy Chinese shit if I can help it. Also, you should put new seals in. They are pretty cheap, but you'll probably have to mail order them.
Ya id buy them online prolly.. I bought my 700 crank seals off smartrecparts.com they were pretty good priced too.. I want to say you can do both end bearings without a press. Maybe yours was just stuck on and you had to get it pressed off? I dono..