eatthis 0 Posted April 21, 2007 i got a compression test today with an endoscope down the bores to see where the oil is goin (only smokey on overrun) results were 176-179 on 5 cylinders and 1 just made 175 i guess thats psi?? the bore with 175 had a cpl of light scratches from piston slap but not at all bad for 107k does the comp sound ok? valve stem seals have been replaced he strongly suggested valve guides does this sound likely? Quote Share this post Link to post Share on other sites
Supercharged 2 Posted April 21, 2007 So 175-179 on all 6 :lol: Sounds spot on to me, won't get much closer than that!!! What engine is it? if it's the SC VR I don't know what they are supposed to be as it's probably running lower compressions anyway?? Quote Share this post Link to post Share on other sites
double-6s 0 Posted April 21, 2007 If their all the same that must be a good thing? Oil on over-run is head isn't it? Quote Share this post Link to post Share on other sites
eatthis 0 Posted April 21, 2007 So 175-179 on all 6 :lol: Sounds spot on to me, won't get much closer than that!!! What engine is it? if it's the SC VR I don't know what they are supposed to be as it's probably running lower compressions anyway?? well yeh lol but 1 was noticably lower than the rest just not by much it is charged but totally stock internals including standard compression the valve stem seals have been done so it narrows it down somewhat the testers comments were iv seen alot worse its in good nick for the mileage looks like its been looked after :) Quote Share this post Link to post Share on other sites
