Haybusa Parts and Service Member Support

Author Topic: cleaning stock valves  (Read 18942 times)

Offline firemanjim

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Re: cleaning stock valves
« Reply #25 on: February 25, 2016, 03:11:51 PM »
Steve, you mention using a Gen 2 intake and using an offset cam pin--why is that?
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Offline Jay

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Re: cleaning stock valves
« Reply #26 on: February 27, 2016, 11:54:06 AM »
The pin in the gen 1 and gen 2 intake cams are in a different location.

Offline arthur39

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Re: cleaning stock valves
« Reply #27 on: February 28, 2016, 07:40:08 PM »
rings need replacement as well as the cylinder  :( Nikasil started chipping on 2 center cylinders. Valves look good. I wanted to ask if it would be ok the lap them back in after cleaning?  or just put them back.
 

Offline Jay

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Re: cleaning stock valves
« Reply #28 on: March 02, 2016, 01:40:07 AM »
Call us, 661-256-7309. We usually have a few nice stock blocks that we do an exchange on.

Offline knecum

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Re: cleaning stock valves
« Reply #29 on: May 02, 2016, 06:59:27 AM »
Keep your receipt, I never had luck with S.S. valves on stock seats, seen numerous  S.S. valves trench and sink in the head and take up the clear enough to Keep it open and lower compression.  Never ever seen it on stock valves on a Busa.
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Steve;

I would love for you to try a set of ours. It would change your opinion for sure.  There are a lot of Chinese valves out there now and that may account for the experiences you have had.  In two years, we have never has a single case of ours trenching.
   

We'll Fereea  replaced a set and so did Schnitz that said they were V&H  so are they still Chinese?   Lol.      I know of some Chinese  rod  manufacturers,  you know the ones that come with no spec card!! I had to get every set machined that a customer  supplied to get my side clearance I like. Now I won't build an engine with them at all!!

Offline speedduck

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Re: cleaning stock valves
« Reply #30 on: May 02, 2016, 12:26:41 PM »
I never had an issue with chinese rods   :D
 (except for them being different lengths, and pin bushing wearing out fast, and and...)