Bottom pulley

[thejinx]

I have bought an after market bottom pulley from Heritage. Chrome type with 360 deg TDC BDC etc. when I try to fit it I can't get tension on the belt. Put the original back and the belt is ok. Any ideas? Cheers

 

[rlepecha]

The other pulleys are slightly smaller than the stock pulley with the D stamp.
Stick with the original..m

Sent from my Wileyfox Swift 2 using Tapatalk

 

[Webbaldo]

Most aftermarket pulleys leak as well as the rear worm screw is never as good as the original

 

[dustrat]

I have fitted a few of these pulleys and never had a problem. Might be a silly question but have you reduced the number of shims between the two halfs of alternator/generator pulley? Also have never had a problem with oil leaks .
Robert

 

[atafonso]

If using an alternator, make sure you have a 11.3x912 belt.
I have had a few leaks with aftermarket pulleys but the Gen VW ones always seals fine.
Abel

 

[thejinx]

cheers all