ORIGINAL: Nitro Rustler Racer
ORIGINAL: killer89
ORIGINAL: traxxarrus
yea it still runs but it cuts off after about 3 minutes. I am not sure how to take everything apart because i am just a beginner. Thanks for the help.
Its done... once the engine loses compression from the sanding of the piston and sleeve, it will only run while cold. This is because when cold the sleeve has not yet expanded and it runs with compression. Then once the sleeve expands the clearance is very loose and there is no compression when hot... same with a used motor.... I would not suggest trying to rebuild or pinch the sleeve because the crank is now scored and won't seal with the case, the bearing are probably very gritty aand shot and the p/s is worn... You can have it pinched, but then you'll have bearing and crank problems....
good luck...
r
if there was wasnt compression when the engine is hot then how does the engine run then?it has compression, but not as much as it was when the engine was cold
He is saying, when the sand got in the engine, it lowered the compression alot. When the engine is still in good shape, it has a high enough compression to keep running while it is hot. but the loss of compression will make it alot more difficult for the engine to keep running at higher temps.