Pulley fell off

[thejinx]

As it says. The bolt is still in place but the pulley wheel is off. Had a generator warning light come on. Pulled over and the bottom pulley wheel was off.

How can this happen

How do I prevent it happening again

How do I fix it.

Cheers

 

[StuF]

I had a rather large failure of the top pulley a couple of year ago
Basically the welds failed and it exploded at abut 3500rpm

Only way to prevent future failure of poor pattern parts was to get a billet item installed - not cheap but no welds to worry about as its milled out of one piece of metal

On this pic you can see where it let go



And how it looked installed



Post a couple of pics of what your looked like

 

[thejinx]

This seems intact. The retaining bolt is still there. It's just off.

 

[dubselector]

Is it a genuine pulley or some Chinese "performance" piece of **** ? Unusual for a VW one to let go, as above post a pic please :?

 

[thejinx]

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Washer missing. Possibly

 

[StuF]

Ahh - the bottom pulley!
Was the woodruff key installed?

 

[thejinx]

As I don't know what that is I will say no. What is it

Looked into it. Where does that go. Don't see an obvious place for it

 

[megaaircooledvw]

Looks like the case has been machined for a larger dia oil thrower pulley and washer is too small,its somthing the big engine rebuilders do.