E30 Zone

Posted: **Sat May 09, 2015 9:33 pm**

Hi all..

Hope you can give me a answer on this one.

Picked up my head from the machine shop today and i can see marks left by the machine on it. I thought they are meant to be like mirrors once done and it's a little ruff on the surface too ?

First time i have had a head skimmed so not to sure

Posted: **Sat May 09, 2015 10:21 pm**

The finish shouldn't be mirror. The gasket needs a keyed finish.

Posted: **Sat May 09, 2015 10:40 pm**

Cool thanks

I've been watching youtube too much lol

Posted: **Wed Jul 29, 2015 9:31 am**

B7 wrote:The finish shouldn't be mirror. The gasket needs a keyed finish.

The finish should me like a mirror if your using an MLS gasket !
Even if your not the finish should look like a record with oil colours if you get my grasp ?
Some machine shops are still using grinding stones for cast iron heads on alloy heads this is not right they should be done with a fly cutter you should really check first hope this helps

E30 Zone

Head surface finish once skimmed ?

Head surface finish once skimmed ?

Re: Head surface finish once skimmed ?

Re: Head surface finish once skimmed ?

Re: Head surface finish once skimmed ?