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Post by p*shedoffwithvbb on Aug 22, 2023 15:11:17 GMT
I have a 1966 Vespa VBB which has a squealing noise from the engine when under load. It seems to quieten down the faster (on a VBB?) you go. The noise doesnt turn heads or start dogs barking. I have replaced all of the bearings twice, crankshaft, piston, mainshaft, clutch twice. The scoot drives great. So the questions are, are all VBB engines naturally noisy. Is the gearbox always clunky and like guess the gear? It has had a new cruciform and cables which are adjust ok. It is after all only 57 years old.
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Post by ironsloth on Aug 22, 2023 19:34:31 GMT
Is it definitely the engine?? Could it be a knackered top rear suspension mount??
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Post by alan34 on Aug 23, 2023 8:27:24 GMT
Hello there. Regarding gear clunk. when going into first keep engine revs low. I always push scoot forward as I put into gear it helps take up the snatch.there is no syncro on gears but you can double the clutch when changing down fourth to third and third to second and this will stop gear clunk if you are not sure how to do it ask an older driver or a wagon driver how it works.good luck cheers alan.
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Post by p*shedoffwithvbb on Aug 23, 2023 12:16:50 GMT
Hiya, i am an older driver (72) but this is my first foray into a Vespa rebuild project Do you ride a VBB? Is it a noisy engine? Cheers, Pete
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Post by alan34 on Aug 23, 2023 14:36:59 GMT
Sorry I dont I have a 2006 px 125.the noise you get l would let it develop until you can pinpoint it good luck cheers alan.
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Post by soulboy74 on Aug 25, 2023 18:40:29 GMT
Yes all the gear boxes on vespa are clunky even the P series l have one of the last series PX l l asked the same question as you !! Like the idea of the double clutch must look into that one 👍 now remember clunk click on every trip LOL crazy days this midd life scootering best foot forward soulboy74 peace and love
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