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Re: Vs l67 rattle high rpm

Posted: Wed Apr 03, 2019 8:08 pm
by Comcal76
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.

Re: Vs l67 rattle high rpm

Posted: Wed Apr 03, 2019 8:16 pm
by vlad01
So does the rattle goes away with the blower disconnected?

Re: Vs l67 rattle high rpm

Posted: Wed Apr 03, 2019 8:44 pm
by Comcal76
Yeah doesn't rattle with supercharger belt disconnected

Re: Vs l67 rattle high rpm

Posted: Thu Apr 04, 2019 9:18 am
by vlad01
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.

Re: Vs l67 rattle high rpm

Posted: Thu Apr 04, 2019 12:44 pm
by immortality
Could be the valve that is rattling, have seen pics of those well worn in the bore.

Re: Vs l67 rattle high rpm

Posted: Thu Apr 04, 2019 6:35 pm
by Comcal76
I tried another complete supercharger with a new coupler and the rattle is still there.

Re: Vs l67 rattle high rpm

Posted: Thu Apr 04, 2019 7:30 pm
by delcowizzid
Could just be detonation

Re: Vs l67 rattle high rpm

Posted: Fri Apr 05, 2019 2:43 pm
by Comcal76
delcowizzid wrote:Could just be detonation
I would say your spot on :thumbup:

Re: Vs l67 rattle high rpm

Posted: Fri Apr 05, 2019 4:56 pm
by vlad01
What fuel are you using?

Re: Vs l67 rattle high rpm

Posted: Fri Apr 05, 2019 5:22 pm
by Comcal76
I always run 98