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Author Topic: High pitched cam chain-like rattle after 3500rpm, can it be turbo?  (Read 331 times)

Offline Thomas

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Can a turbo make sound like the one you get when cam chain or cam-chain tensioner is worn? You know like there is a bunch in rocks in mixer.

It sounds kind of like cam chain but its pitch is much higher. Happens after 3500 RPM, disappears after 3200.

I tried to record it but my phone doesn't pick it up, however if you stand near the bike it's damn obvious something isn't right.

FWIW I have open dump which is 63mm and about 30-40cm long, i.e. I got no muffler. This is my first turbo project and I haven't heard turbo's w/o any mufflers.

Offline Thomas

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Re: High pitched cam chain-like rattle after 3500rpm, can it be turbo?
« Reply #1 on: October 08, 2017, 01:14:45 AM »
Checked cam chain tensioner, it's all good. Double checked that cam's are torqued to specs. Assembled everything back.

Probably it's the turbo.