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MonsterL35YFP

Cambelt tracking to one side

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MonsterL35YFP

Hello polo people I post on here way to often at the moment but I'm having a slight issue with my cam belt it seems to be tracking to one side that much that the lip of the belt is just off the cam sprocket, now iv changed the water pump and belt plus the aux belt, my thinking is that the water pump is slightly off centre or iv tightened the aux belt to much. But just incase is there anything I can do to troubleshoot this? Cheers 

IMG_20180415_151811.jpg

IMG_20180316_121454.jpg

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caretakerplus

I have seen this phenomena many times, and never quite worked out what causes it.

As you say yourself, the first thing to come to mind, would be that the pump sprocket (because that is the only one with flanges on it) is too far 'out' from the engine, but as it does not use a gasket, just an 'O' ring, it is difficult to imagine that it would in fact be out of alignment.

It would be easy to blame after market pumps, but I have seen this with genuine VW pumps as well.

The good news is, that they never seem to get any worse, although of course, it is as well to keep an eye on the belt wear.

I hope that you get a more definitive answer, as I am interested in that as well.

 

Regards

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MonsterL35YFP

Yeah it's strange iv taken it on a long drive and doesn't seem to go past that point so I can't really see it coming off, I'm going to adjust the aux belt tension, I think it's abit over tight but I can't really see that being the problem, it's more of a irritat more then anything. So I'm hoping someone can give me some insight on what's causing it. Cheers for your help tho mate 

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kwijibo_coupe

I've seen this happen on a few of mine too. No idea what the cause or solution is. All I can say is it has never been the source of any issues in my experience. Just one of those slightly annoying Polo querks.

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MonsterL35YFP

Well abit of an update the belt has started to rub on belt cover somewhere but the belt feels abit to tight so thinking of putting it back a touch see if it helps. 

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steveo3002

did it run true before you fitted new parts?

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MonsterL35YFP

Yeah it was spot on 

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steveo3002

has to be the parts youve fitted then....pump on the skew /made badly

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MonsterL35YFP

I would have said water pump so I'll take it off and see if it spins straight 

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steveo3002

guessing the bearing mount is slightly off so its not square to the engine ...or theres some crap under one of the bolts

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MonsterL35YFP

So i let the tension off slightly it was a little tighter then i thought, took it for a spin down the road and it's back to one side, no going to lie really starting to piss me off.

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