Compression test

Need technical Q/A then you're in the right place

Moderator: martauto

User avatar
jesmond
E30 Zone Newbie
E30 Zone Newbie
Posts: 107
Joined: Thu May 19, 2005 11:00 pm
Location: Darlington, County Durham

Post Fri Dec 02, 2005 10:33 am

Hi all

How is an engine compression test done guys? Can a test be done without the use of particularly specialist equipment. If so, what do I need to do to carry one out myself.

Thanks

Paul
OllieB
E30 Zone Regular
E30 Zone Regular
Posts: 676
Joined: Sat Jun 25, 2005 11:00 pm
Location: Winchester, Hants

Post Fri Dec 02, 2005 10:50 am

You need a compression tester I'm afraid mate, you disconnect the king lead (HT lead from the coil pack) then unscrew each sparkplug in turn. You screw the compression tester in where the spark plug would be and crank the engine over. A gauge records the compression. Hope this helps....
----------------------------------------
I'm too scared to drift properly......