engr146

I'm trying to find out,How many people have had a good running engine after just doing Top end job Only ,replacing a holed piston.
Question is, I just want to do top end kit ,In ski without pulling engine,crank and bearings.
SBT say's you have to pull engine ,crank and bearings.after finding a hole in piston.Aluminum gets into bearings and crank!!
I'm sure the cause of mine was PTO carb leaking ,gas and air, Found , Pea size hole in PTO Piston.
Pls.let me Know your engine status,

Krispy

If you had a leak you should replace the crank seals. Which means pull the crank. Just my 0.02 usd

engr146

Leak was at intake gasket!!

Krispy

It is just good practice to do so. Its only a $20 part so why not do it. That is my theory. How did you determine the leak was at the intake gasket? Did you end up finding a pressure test kit or what?

engr146

I sprayed start -fluid around back of carbs with cover on, engine did race slightly..and I have gas running down carb.
The whole purpose of this post ,Is to find out how many people just replaced pistons and gaskets,and had a good running engine afterwards.

Dank's reply

I do about 50/50 top end to complete engine rebuilds. If you also take care of the fuel system issues then the resuls are very good with just a top if you can be sure the bottom end is in good condition. Sometimes you have to roll the dice

engr146

Krispy
Did you pressure test after the last piston failure,were your crank seal leaking ??

Krispy

Nah, I still need to purchase / build a pressure test kit. I have been lazy lately. (Plus Forza 3 came out for XBOX360).

engr146

Call of Duty Modernwarfare 2 (Xbox 360) Is Out on the 10 th I love to play Military sims,This one is better than Orig.MW which is hard to Beat! I even spent the $40 to upgrade my blockbuster Pass.



I'm staying with Dank,He always had a wealth of great Info!!!!!