Knocking - Page 2 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
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post #11 of 14 (permalink) Old 07-17-2019, 10:32 AM
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Quote:
Originally Posted by Chris Allunario View Post
What would cause a ticking sound? Mine has one at idle while cold but it's not terribly pronounced
Cam chain. The bike came with ACCT's (Automatic Cam Chain Tensioners) but they don't really work as well as they were supposedly designed to. Many here switch to manual adjustesrs (MCCT)
A slight ticking on a cold engine is fairly common and not something to be overly concerned about. A loud ticking when the bikes warm would be.

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post #12 of 14 (permalink) Old 07-19-2019, 06:23 PM
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That is definitely a rod knock. No real way to fix it without splitting the cases. I would sell it as a parts bike, or look for another engine. Ticking is usually caused by the valve lifters or a minor exhaust leak. The Vulcan has hydraulic valves, which are both good and bad. Good because they never need adjusting. Bad because they can become plugged up (especially when the oil is not changed often enough) and not pump up properly, allowing too much valve lash. You might be able to clean them by putting some kind of solvent like Seafoam in the oil.

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post #13 of 14 (permalink) Old 07-22-2019, 11:49 PM
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Might not be rod bearings. Could be balancer bushings. Is it towards the front bottom left?

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post #14 of 14 (permalink) Old 07-23-2019, 10:13 AM
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Might not be rod bearings. Could be balancer bushings. Is it towards the front bottom left?

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Good point Doc. If you touch the case where the damper is, you may feel the knock there.

Have never heard damper knock myself to know, but it does happen.

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