UK Karting - Notice Board (4-Stroke Karting) : Re: Valve Problems

Notice Board (4-Stroke Karting)

Re: Valve Problems
Posted by 'BrianP' on 11 Mar 2011 @ 09:44

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BrianPJoined: August 2001
Total Posts: 41
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if a valve has bent it may have damaged the valve guide.
Valves used to get bent when they dropped due to a failure of collet. Fitting exhaust collet and rotator, to both inlet and exhaust valves went a long way to solving the issue.
I am told the fitting of the stem seal has also helped prevent valves dropping.

So a few Q's to diagnose the present problem...
# which valve was bent?
# was it attached normally within the collet?
# did it have the exhaust collet and rotator fitted?
# did it have a stem seal fitted?
# was there any marks on the piston?

If it was me I would check valve guide for wear and fit the above mentioned parts to both sides of the head.
Brian P.

Message Thread:

Valve Problems by 'Thehairbears' (10 Mar 2011 @ 20:38)

Re: Valve Problems by 'Rhauri' (10 Mar 2011 @ 22:54)

Re: Valve Problems by 'Thehairbears' (11 Mar 2011 @ 8:28)

Re: Valve Problems by 'Rhauri' (11 Mar 2011 @ 9:14)

Re: Valve Problems by 'BrianP' << You are here!

Re: Valve Problems by 'Thehairbears' (11 Mar 2011 @ 17:49)

Re: Valve Problems by 'BrianP' (11 Mar 2011 @ 18:22)

Re: Valve Problems by 'Thehairbears' (11 Mar 2011 @ 20:53)

Re: Valve Problems by 'BrianP' (11 Mar 2011 @ 21:09)

Re: Valve Problems by 'pushpast' (12 Mar 2011 @ 9:17)

Re: Valve Problems by 'lard ass bob' (12 Mar 2011 @ 11:23)

Leakdown Tester ! by 'Trev' (12 Mar 2011 @ 11:40)

Re: Leakdown Tester ! by 'BrianP' (12 Mar 2011 @ 16:06)

Re: Leakdown Tester ! by 'RoadRat' (12 Mar 2011 @ 16:08)

Re: Leakdown Tester ! by 'Trev' (12 Mar 2011 @ 17:19)

Re: Leakdown Testes ! by 'BrianP' (12 Mar 2011 @ 18:00)

Re: Leakdown Testes ! by 'Thehairbears' (12 Mar 2011 @ 20:56)

Re: Leakdown Testes ! by 'Trev' (12 Mar 2011 @ 21:09)

Re: Leakdown Testes ! by 'Thehairbears' (15 Mar 2011 @ 18:48)

Re: Leakdown Testes ! by 'BrianP' (15 Mar 2011 @ 18:53)

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