Originally Posted by
Gold-mk1
doesn't this happen when the pulleys themselves are worn ? a mates mk2 did this and was remedied by a quick trip down the parts store, weren't expensive either.....can probably sort out a load if people are desperate..!?
to be critical, what happens is the flat inner side of the belt ends up running on the inner diameter of the pulley groove, this "belt bottoming" removes the pressure the "vee" sides of the belt have against the pulley vee ( removes the natural tendency to wedge itself in the pulley ) making the belt slip in the pulley & squeal.
You can check this easily with a new belt pressed into the pulley groove, if it is contacting the bottom, machine the pulley minor diameter.
Use to do this constantly with earthmoving equipment, the dusty environment chews the cast iron pulley's like in no time..
HTH
Cheers,
Grant.
Lots of MK 1 Scirocco's...
If it aint a MK 1 then it must be a donor car ??
Cheers,
Grant...
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