pulled out the spark plugs
used a snap on compression tester
car was somewhat warm (drove car about 5 miles to my dads house and let cool for 1/2 hour)
did not press the gas or wot
just turned the key and cranked 5x's
175 170 175 170 were the #'s

-plugs looked fine changed 1k ago
-mileage is about 100,000 turboed for 10 of them
-havent done a valve adjustment since purchased at 70,000

good #'s????

 

Looks good

 

what are average #'s for a strong engine 180?? ive seen some at 210 though??

 

you're good as long as they are not like 25 in difference between each other

 

175-180 on MY tester, 170-175 on a different tester I'd be happy.

 

looks good.... just keep up one the valve adjustments I think the book recomends 15k between adjustments

 

your supposed to do this test with the throttle plate wide open and the motor at operating temp....do it again to be sure

 

my dad has been an auto mechanic for over 20 years and this is the procedure he gave me.

you do it cold so the pistons build pressure and give a real reading, if its warm then its easier to build the pressure and will give a false reading,

 

yea the WOT dont change anything did it and git the same #'s

 

post pics of the 4 door.

 

sorry for the bad quality didnt have my digital with me had to use my razr

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by exotik4doorcivic &raquo;</TD></TR><TR><TD CLASS="quote">my dad has been an auto mechanic for over 20 years and this is the procedure he gave me.

you do it cold so the pistons build pressure and give a real reading, if its warm then its easier to build the pressure and will give a false reading, </TD></TR></TABLE>

Last time I checked you want your compression in your motor when it's actually running, meaning it's going to be warm. This is the condition you want to check the motor under. Not sitting still. You want to see what your compression is going to look like while you're actually driving the car.
A cold compression test is going to give you false readings since engine components will expand once they warm up and start to fit they way they're supposed to. This is why you don't beat on an engine before you warm it up properly.

 

i think my z6 is gonna blow then because i had like between 130-140 for all four cylinders. and im at 160,000 miles. thats without wot and i think the motor was warm. im thinkin new hg is gonna be needed soon?