Guest

what type of results do i get? do i get each cyllinder's pressure? are they all supposed to be pretty close? how close? what are good pressures (does it depend on engine size, etc?)

thx

Robert

Shingles

Read your FSM for the pressure range that it's supposed to be in. You will need to do it for each cylnder. I suppose if they are all withing 5% it shouldn't be bad. Procedures are faily simple... but will be time consuming with the max cause you have to get to the rear sparks.

You doing this to the maxima or you new secrete car? If you are doing it secrete car, must be a pre-owned vehical eh?

-Shing

Guest

he...he...he...

You doing this to the maxima

nope

or you new secrete car?

not secret...discussed it yesterday...

If you are doing it secrete car, must be a pre-owned vehical eh?

yes...a rare and beautiful (and quick) 1995 MR2 Turbo

-Shing [/I][/QUOTE]

Shingles

Do you suspect bad rings? Why compression test?

-Shing

[/I][/QUOTE]

Guest

hell as good or better than my 97 actually...guy is real honest (so far) but car is in virginia and i want to be real picky before i fly out there to put some cash on this sucka.

plus he's selling for 2k less than i usually see them for (which means he's only asking $500 over Blue book while everyone else asks 2500$ over)

Robert

MarkP

Most car manufacturers want all cylinder compression to be within about 10% of each other.
For example: Nissan's 96 Maxima manual says to expect 185psi with an accepted minimum of 142psi and a difference of 14psi max.
Standard practice is to try pouring a small amount of engine oil in each cylinder through the spark plug hole to help the rings seal and try again if a cylinder is low to see if the compression jumps. If it does for a cylinder then you've got a possibility of bad rings. If it doesn't then possibly a bad valve. If two adjacent cylinders show low after the oil test, then a bad head gasket is possible, though it could still be valves in those two.

Mark

TimW

iTrader: (6)

he sold his because he didnt want to buy a turbo out of warranty. He was on his third. Sounds like he had the problem tho, he drove like an idiot.