Quote Originally Posted by Rico View Post
I'm sorry I forgot to mention this VERY IMPORTANT note about reusing the pistons.

Whatever you do with the pistons, if you're installing new rings, make absolutely sure there is no carbon in the ring lands. New rings and carbon do not get along. The carbon will decrease the amount of compression distance for the ring when they get up to temperature. If the ring has nowhere to go when it expands it'll wreak havoc on the cylinder walls and possibly break the rings or snap the lands. Just another common mistake of the novice.

An easy way to clean the lands (chemicals won't help here):
Take an old ring and snap it in half
Use the broken ring to scrape the carbon from the lands
Make sure you can see nice clean aluminum at the bottom of each land
Try not to remove any aluminum from the land surfaces that are perpendicular to piston travel
If the ring has to much play in the land it will twist back and forth on every cycle and eventually snap

Let me know if you're installing new rings and I'll explain how to check another very important thing: ring gap

Hope this helps
Thanks for the advice but i wont be completely dissasembling the engine anything thats the psitons, piston rings, crank and rods and such will stay were they are at. i just mainly took it apart to change all gasket since the guy told me it was running before i pulled it out. and wan no leaks make it look nice and run good before i sell it.
there is some movement on the piston idk if this is normal though i can move it very little side to side it doesnt hit the wall of the block just idk if its normal since i think they all move.