ALternator belt pulleys not lining up

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Nutty
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ALternator belt pulleys not lining up

Post by Nutty » Fri Jan 31, 2020 11:26 am

Ah, the joy of classic motoring..
Being in the process of changing the cam belt on Nutty I noticed that the belt pulleys on the crank shaft and water pump are not terribly well aligned, must be the best part of 2mm out. What is the consensus on creating a spacer and fitting that under the belt pulley of the water pump, good idea or is there something more sinister happening. The good news, so far nothing broken in the changing process. :groove:


The first tool invented was a hammer, the second a bigger hammer

BlackGT
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Re: ALternator belt pulleys not lining up

Post by BlackGT » Tue Mar 24, 2020 10:36 pm

When I fitted a new waterpump and pulley last year I had exactly this issue, I think it was the new pulley that has a slightly smaller offset from the pump than the old one. I added cardboard spacers under the pulley until it lined up correctly, has been fine since.



mark1gls
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Re: ALternator belt pulleys not lining up

Post by mark1gls » Wed Mar 25, 2020 8:37 pm

Seems common to have a water pump pulley not line up..
Better to fit a washer behind the pulley on the water pump instead of cardboard, the cardboard will get wet overtime and rust the bolts so you may move problem removing them next time.
A little smear of copper grease on the bolts will help taking it apart next time easier.


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
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Nutty
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Re: ALternator belt pulleys not lining up

Post by Nutty » Sun Mar 29, 2020 10:31 pm

Thanks for the info.


The first tool invented was a hammer, the second a bigger hammer