Vs l67 rattle high rpm

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Re: Vs l67 rattle high rpm

Postby Comcal76 » Wed Apr 03, 2019 8:08 pm

It rattled with the single row timing chain as well and when I installed the double row I installed two gaskets because of the clearance issues.

Thanks mate.

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Re: Vs l67 rattle high rpm

Postby vlad01 » Wed Apr 03, 2019 8:16 pm

So does the rattle goes away with the blower disconnected?
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.

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Re: Vs l67 rattle high rpm

Postby Comcal76 » Wed Apr 03, 2019 8:44 pm

Yeah doesn't rattle with supercharger belt disconnected

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Re: Vs l67 rattle high rpm

Postby vlad01 » Thu Apr 04, 2019 9:18 am

Probably coupling in the SC or something in the SC.


I would try revving it with the SC bypass valve manually opened and see if it still makes noise. That will still let the SC run but without load on it.
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.

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Re: Vs l67 rattle high rpm

Postby immortality » Thu Apr 04, 2019 12:44 pm

Could be the valve that is rattling, have seen pics of those well worn in the bore.

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Re: Vs l67 rattle high rpm

Postby Comcal76 » Thu Apr 04, 2019 6:35 pm

I tried another complete supercharger with a new coupler and the rattle is still there.

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Re: Vs l67 rattle high rpm

Postby delcowizzid » Thu Apr 04, 2019 7:30 pm

Could just be detonation
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem

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Re: Vs l67 rattle high rpm

Postby Comcal76 » Fri Apr 05, 2019 2:43 pm

delcowizzid wrote:Could just be detonation


I would say your spot on :thumbup:

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Re: Vs l67 rattle high rpm

Postby vlad01 » Fri Apr 05, 2019 4:56 pm

What fuel are you using?
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.

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Re: Vs l67 rattle high rpm

Postby Comcal76 » Fri Apr 05, 2019 5:22 pm

I always run 98

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