how do i clean engine valves that have burnt carbon/c**p on them ?

steve

I spun mine in my lathe, using emery cloth to clean them.
This is not much help if you haven't got a lathe!

David

Spin 'em in an electric drill , use emery or wet n dry , but not on the seat area !

Or you can chip away with a knife and finish them off on a wire wheel....



The Phantom Bodger.............

quote:

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Originally posted by David Jenkins
I spun mine in my lathe, using emery cloth to clean them.
This is not much help if you haven't got a lathe!

David

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Put em in a drill and spin em with some emery cloth. If they are a bit sticky spray em with WD to soften it up.

I usually clamp the drill in a vice to make it easier.

quote:

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Originally posted by gazza285
Not with your finger I hope David, but with it nailed to a piece of wood?

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If you have one use an old valve as a chipping hammer , chip off the worst of the carbon, then if you have access to one use a bench grinder with a wire wheel to clean off the rest. If you haven't got a bench grinder try paint stripper or gasket stripper , excellent at removing carbon from heads and valves

paint stripper


someone has a good answer !!

"put them in a drill"

i did things like that when i was 15 !!

nowt wrong with putting them in a drill, does the job fine. People have been known to make very effective wasted stem valves like this! (needs considerable care though!)