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alternator pulley alignment query

Posted: 19 May 2012, 18:54
by fairwynds
Hi
My van has had the same fanbelt forever, it seems. A 'non -toothed' V belt. I thought it was about time to renew it, as it mustve been on there for several years and was looking a bit suspect.
Bought new belt (toothed this time though) - shredded and snapped it after 200 miles!
Bought another belt, checked all pulleys for nicks/notches, all ok. Moved a nearby jubilee clip 'tail' - just in case. 120 miles later, shredded that too!
Have bought another! Closely examined pulley alignment. It looks as though the alternator pully (standard set up) is not aligned properly, and that coupled with the extra grippy toothed belt, has led to this problem I never had before.

There seems to be a gap between the alternator pulley and the 'fan' on the alternator....probably the width of the pulley itself! Seems to me that shouldnt be there! Have dismantled, but no amount of toying with the existing washers etc will solve the problem, so off to alternator rebuilding place near me tomorrow....

anyone got a picture taken from immediately above their (19DG) alternator please?

Thanks

FW

Re: alternator pulley alignment query

Posted: 20 May 2012, 22:19
by billy739
a pic may help , but probs you have a car alternator , which can look / mount the same

Re: alternator pulley alignment query

Posted: 22 May 2012, 18:08
by fairwynds
alternator taken to an auto electrical specialist local to me. He will move the pulley closer to the alternator 'fan', but also suggests that I use a 'V' belt, not a toothed belt. It was a V belt that was originally on there....
Hoping to get the alternator back tomorrow, so will soon see...
FW

Re: alternator pulley alignment query

Posted: 23 May 2012, 19:15
by fairwynds
...alternator refitted today, alignment seems much better. Will be fitting a 'V' type belt asap. Keeping them crossed....

Re: alternator pulley alignment query

Posted: 24 May 2012, 09:31
by billy739
i presume you mean a toothed v belt as opposed to a rib belt?

what was the problem ? wrong pulley?

interesting to know

Re: alternator pulley alignment query

Posted: 24 May 2012, 21:21
by pionte
billy739 wrote: what was the problem ? wrong pulley?

interesting to know

Mine is on the p%ss too...... be interesting to see a pic of yours before and after :ok

Re: alternator pulley alignment query

Posted: 25 May 2012, 06:32
by billy739
not uncommon if you have a look at a few.

tho seems to work without problems on some!

Re: alternator pulley alignment query

Posted: 25 May 2012, 07:55
by fairwynds
Hi
original belt was untoothed, replacement is toothed (and will be replaced with an untoothed one asap!)
Pulley has been adjusted towards the alternator fan by about 10mm, and now looks to be much more inline with the other two!
Will post pics when I get a moment
cheers all
FW
:ok