julianf

Well-Known Member

• Feb 5, 2019

• #1

Everyone is always talking about skimming heads. As in the moment one comes off people seem to be on about slicing them.

Is this just some nonsense, or...?

I mean, if, for example, a plug tips come off in the head, and it has to be removed from an otherwise sound setup, what's the reason to skim it?

 

EeEk

Well-Known Member

• Feb 5, 2019

• #2

None....only skim it if its been roasted

 

jamesmartin

Well-Known Member

• Feb 5, 2019

• #3

skimming a head should only be done if necessary

 

DanClarke

Well-Known Member

Full Member

• Feb 5, 2019

• #4

Banana heads that have been warped by heat are the only real reason to do it (when I were a lad).
If the head is still flat and true, there's no need.

 

MJI

Well-Known Member

• Feb 27, 2019

• #5

I once had 60 thou skimmed off a head.

Made 10bhp difference on a rolling road.