UK Karting - Notice Board (4-Stroke Karting) : what could cause this

Notice Board (4-Stroke Karting)

what could cause this
Posted by 'prokartpaul' on 09 Feb 2010 @ 22:43

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prokartpaulJoined: September 2008
Total Posts: 1
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build up of black carbon on bottom of exhaust valve spring, probably coming up through exhaust valve stem. valve seat looks clean same on both engines. these where 10hrs old from having new rings valves lapped and springs

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what could cause this by 'prokartpaul' << You are here!

Re: what could cause this by 'Eddy' (10 Feb 2010 @ 9:38)

Re: what could cause this by 'prokartpaul' (10 Feb 2010 @ 10:13)

Re: what could cause this by 'BrianP' (10 Feb 2010 @ 11:35)

Re: what could cause this by 'prokartpaul' (10 Feb 2010 @ 12:04)

Re: what could cause this by 'BrianP' (10 Feb 2010 @ 12:22)

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