UK Karting - Notice Board (4-Stroke Karting) : Re: Honda Cadet

Notice Board (4-Stroke Karting)

Re: Honda Cadet - Exhaust valve collet & rotator
Posted by 'lard ass bob' on 22 Jan 2009 @ 21:58

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lard ass bobJoined: August 2001
Total Posts: 41
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Ian,

There isn't any performance advantage and I have only see it done once in 8 years.

I think the old K spec engines did have a tendancy to drop the inlet valve when the collet failed and the valve stem had a nasty habit if sticking itself out of a different part of the cylinder head than the valve guide - not nice and expensive. Using the exhaust collet reduced the incidence of failure, however.

With the newer engines (probably E spec on) Honda installed a simply cap through which the valve moves mad of a rubber like material. Now if a valve collet fails the valve does not tend to fall all the way into the cylinder and the repair bill is a new collet and an oil change.

Graeme

Message Thread:

Honda Cadet - Exhaust valve collet & rotator by 'iant' (22 Jan 2009 @ 12:47)

Re: Honda Cadet - Exhaust valve collet & rotator by 'lard ass bob' << You are here!

Re: Honda Cadet - Exhaust valve collet & rotator by 'Trev' (22 Jan 2009 @ 22:07)

It's the Japenese collett that causes the problem. by 'RoadRat' (23 Jan 2009 @ 17:23)

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