Cylinder head skimming

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bmwnz
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Joined: Mon Oct 05, 2015 10:58 pm
My E21(s): 1981 320/6 5speed manual

Cylinder head skimming

Post by bmwnz »

Hi all,the haynes manual says that a thicker head gasket MUST be fitted if the head is skimmed on the 320/6.Is this true and if so is it a clearance issue or ignition issue?
My head will probably be having a light skim while it is off due to leaking head gasket.Head currently measures 125.2 so fairly sure it hasn`t been done before.Any comments appreciated.


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PeteK
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My E21(s): 1979 323i Euro
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Re: Cylinder head skimming

Post by PeteK »

I think the answer is "yes".

Skimming the head will change your valve timing. You can get an adjustable pulley to sort that out though.

Valve clearance would be your other problem. I'm not sure if it's a real problem though.

Regards
PK
Pete K
'79 323i (for good times)
'81 M535i (for collecting)
'75 520i (track machine)
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Jeroen
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Re: Cylinder head skimming

Post by Jeroen »

No issues if the head is being skimmed for the 1st time, a slight skim does not immediately require different gaskets or an adjustable cam pulley.
Regards/groeten, Jeroen
bmwnz
Newbee
Posts: 2
Joined: Mon Oct 05, 2015 10:58 pm
My E21(s): 1981 320/6 5speed manual

Re: Cylinder head skimming

Post by bmwnz »

Thanks for that,looking forward to having the car going again!
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