Thicker Head Gasket after Skimming?
Moderator: martauto
-
doolie
- E30 Zone Newbie
- Posts: 9
- Joined: Sun Jul 02, 2006 11:00 pm
Anyone know if after i've fitted a reconditioned (and skimmed) head whether it is essential to fit a thicker head gasket? I guess fitting a standard one will up the compression ratio slightly, meaning i might have to run higher octane fuel?
-
BMW_YARD
- E30 Zone Newbie
- Posts: 146
- Joined: Sun Jun 25, 2006 11:00 pm
Depends what how much material has been removed, what is the model code of your engine M20/M40 ?
The cylinder head may be skimmed to a minimum height of 140.6mm for the 318i and 124.7mm for the 320i.
The cylinder head may be skimmed to a minimum height of 140.6mm for the 318i and 124.7mm for the 320i.
-
dazleeds
- old skool raver
- Posts: 12883
- Joined: Fri Apr 01, 2005 11:00 pm
- Location: Empire Building @
dealers sell both normal and thicker gaskets for skimmed heads
www.oldskoolfantasy.co.uk
in the shit,the one to blame,yeh its all my fault ;)
in the shit,the one to blame,yeh its all my fault ;)
-
doolie
- E30 Zone Newbie
- Posts: 9
- Joined: Sun Jul 02, 2006 11:00 pm
It's the 325 engine. I wouldn't mind upping the compression ratio a little really, just I don't want valves getting too close to pistons!
-
Demlotcrew
- E30 Zone Team Member
- Posts: 13329
- Joined: Mon Dec 20, 2004 11:00 pm
- Location: East Anglia
You wont need the thicker gasket on a M20
Got for the extra compression
Andrew
Got for the extra compression
Andrew
