E30 Zone

recently did a head skim as my alternator belt slipped off the pulleys,should i use oversize gasket or just standard one

Some body in the know will be along soon until then have a look around and post up some pics if you like.

Welcome to the zone mate



Mart.

Hi Mate,

Well, normally you would measure the height of the head to check if it has been skimmed before, should be 125.1 mm.

If the skim removes the maximum allowed of 0.3 mm ( 12 thou inch ) of metal, then a 0.3 mm over sized gasket is available. Any more
skimming will affect the compression / valve clearances from the pistons, and cause lousy running as well.

At least, that's the theory, so check the tolerances and skim info with your machine shop.

Paul

thanx Paul,greatly appreciated.wl check with shop

Why did you skim the head?

Alternator belt slipping would not normally require this?

Ben

well it had overheated for a while while cruising on the high way without noticing and was producing a white smoke so sm advice was that its usually js better of skimming the head