Rb26 Std Head Gasket Thickness

[STATUS]

Thanks guys, head is off, and big problem, it looks like whoever rebuilt the motor last done it all wrong!, the pistons appear to be hitting the head, and that was confirmed once i showed the reconditioners the head, the block may need to be taken out, but maybe not if the pistons can be removed and re-shimmed to clear the gap.....

What's the best idea from here people?the cylinders have been bored out, dnno how much too though as i didn't have a vernia dial at the time, but i could see the sleeving....

I hear the stock rb26 headgasket is 0.9mm in size?, if my cylinder have been bored out, and the head gets machined, would 1mm headgasket thickness still be ok?or would i be pushing it....

Have alot of work still to do, here i was thinking im all done!...

i dont think this is an job for you anymore..... something is seriously amiss and you need to get it all measured up properly and honestley if you cant get your head around simple head gasket thicknesses your gonna burst a blood vessel figuring out deck height and so forth which all seem to be up the shit in your engine.

for a start pistons cannot be shimmed.... the block should not be sleeved.... and who knows if 1mm is going to be fine now? if the pistons are hitting then either a) wrong pistons fitted or b) wrong rods (unlikely) or c) wrong gasket d) ongoing issue with a warped deck and the head has been machined too much etc.... it all needs to be stripped, dummy assembled and precise measurments made.

[nsta]

Thanks mate, so basically the block also needs to be given to the engine recon'ers to have them figure out whats happened?as the head is already with them.

[nsta]

on further research, ive noticed alot of people remove the squish area on the head...which is the area where the pistons seemed to have been touching the head itself, no 6 got the worst damge, and the others had minimal, but were nticeable....i was thinking that since the water was chewing away at no.6 it wouldve made things worst than it looks....

[Abo Bob]

Yes take the whole thing to them.

Yes some people remove the squish area but it's there for a reason. I have retained mine.

[nsta]

Thanks, ve posted a new thread about the squish area...basically it was only piston no.6 that was hitting the squish on the head...very odd as to why this has happened, but it was no.6 piston that let go thus causing the gasket to blow so it kind of makes sense...