Doing a compression test on my 1991 325i, haven't done one of these before, any advice, (dos and donts)
Chris
m20b25 compression test
Moderator: martauto
[quote="bluff467"]Doing a compression test on my 1991 325i, haven't done one of these before, any advice, (dos and donts)
Anyways did the cmpression test but I'm a bit confused, (doesn't take much) I got readings of 168 to 175 psi, but thought that they should've read between 142 & 150 psi. Iused a snap-on compression tester. Any advice?
Anyways did the cmpression test but I'm a bit confused, (doesn't take much) I got readings of 168 to 175 psi, but thought that they should've read between 142 & 150 psi. Iused a snap-on compression tester. Any advice?
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e301988325i
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Did you have the throttle fully open? The main interest with cranking the car over and doing a compression test is a % comparison between cylinders should be <5% difference.
A leak down test will give you much more information, if you are having problems, and haven't found anything wrong.
A leak down test will give you much more information, if you are having problems, and haven't found anything wrong.
I said:
Can anyone suggest how to test if the boot lights are staying on with the boot shut?
e30topless said:
lock the wife in there
Can anyone suggest how to test if the boot lights are staying on with the boot shut?
e30topless said:
lock the wife in there