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

Notice Board (4-Stroke Karting)

Re: Valve Problems
Posted by 'Rhauri' on 10 Mar 2011 @ 22:54

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RhauriJoined: October 2009
Total Posts: 1
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Did you run them for 30 hours from brand new?

If so that could be your reason. Ideally when you buy a new pair of new engines you need the initial 1 hour run-in, and then run them for about 9/10 hours in racing conditions. Once you've gotten to this point you need the valve seats recut and the valves grinding in.

Reason for this is that during the first 10 hours the temperatures these poor little Hondas get up to during racing actually distorts the heads. After the 10 hours they settle, but in order to avoid damage and ensure maximum performance you need the aforemention work doing. A bent valve doesnt sound too bad though as long as its not scored or damaged anything else.

Get it replaced and you'll be fighting fit in time for the next outing!

See you then matey.

Message Thread:

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

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

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' (11 Mar 2011 @ 9:44)

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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