i installed pistons/rings in cylinders 1-3 fine, all 3 will turn with ease in the cylinder, where w/in service limits per the machine shop, and will go up and down in the cylinder with a little force, cylinder 4 however will spin but its a little harder to do than cylinders 1-3, but takes A LOT more force to make the piston go up and down in the cylinder

its basically a bare block, balance shafts, crank, nothing else has been installed yet, when piston 4 is moved up and down, there isnt any scarring or anything on the walls, seems like its just really really tight in there, is this ok or should it move just like the other pistons??? should i remove it, get another set of rings, and reinstall, or is it ok as long as it is able to move up and down without scarring the walls???

 

bump

 

Which set of rings are you using? Do they need gapped?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rosko &raquo;</TD></TR><TR><TD CLASS="quote">Which set of rings are you using? Do they need gapped?</TD></TR></TABLE>

oem h22a standard size, what do you mean do they need gapped???

 

Some rings you buy are called "file fit" where you have to file the gap where they come together. You do that by putting the ring itself in the cylinder and push it towards the bottom of the cylinder and then use a feeler guage to measure the gap.

Since you have oem rings you shouldnt have to do that, but its usually a good idea to check them that way for manufacturing errors or whatever.