ozzy

Can someone please explain what these mean?

Cylinder head decoking?
Cylinder head gasket skimming?

Calling David Wallis, Pavlo, Andy F, etc..

Thanks,
Stefan

dowser

Decoking - removing carbon build up to reduce the chance of hotspots and detonation (and just pure flow if the 8 valve Integrale exhaust valve I recently saw is anything to go by!).

Skimming - removing a fine layer of metal to ensure a surface is flat and/or to raise compression. Not normally related to a gasket, but to the head or block itself.

I would have *thought* a turbo charged engine being driven healthily (ie; hard!) wouldn't suffer much from coking (but the Lancia valve made me wonder). I decoked my Mums Hillman Imp when I first passed my driving test - flat out in top (~90mph iirc), after a mile or so like this sparks started flying out the exhaust...a regular firework display. Strangely, the head gasket failed shortly afterwards

Richard

ozzy

Thanks very much Richard.

Stefan

Andy.F

Sorry Stefan, I never even read this until it had bounced back to the top a few times and got me curious !!

Now if the title had been "50 bhp free" I may have been in sooner

Dowser to the rescue though

ozzy

Thanks Andy.

[note to self]
bait any questions with getting extra horses for nothing and that'll get their attention.
[/note to self]

Stefan

ozzy

nobody know?

or are you all just shy thesedays

[Edited by ozzy - 1/10/2003 10:28:32 AM]