M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: jthorsland on July 28, 2011, 02:41:30 PM

Title: m42 compression test results
Post by: jthorsland on July 28, 2011, 02:41:30 PM

I bought a '93 318i cheap - owner said it was run hot.

Compression test results:

1-80
2-30
3-25
4-120

Anyone hazard a guess at the damage?

Title: m42 compression test results
Post by: DesktopDave on July 28, 2011, 05:05:49 PM

2-3 head gasket break or crack in the head?

Can you have a leak-down test done?  I've never done one myself but my mechanic swears by them.