Timing belt rubbing

[murtaghp 3]

I have just changed the timing belt, tensioner and water pump on my 1.9 8v engine and the timing belt is rubbing on one of the plastic covers.

 

The covers were replaced with new Baker BM ones during the belt change and it looks like the rear cover is the culprit.

 

i switched back to the old cover as it was still in good condition but this one is also rubbing against the belt. I have stripped it several times and used emery cloth to rub down the old cover to give it some room and it has improved but still rubbing when I rev it and it’s settling back at idle.

 

The timing belt kit is a Gates one and identical to the ones removed.

 

Has anyone experienced this before and have any idea what the issue can be?

[welshpug 1,737]

either the cover is not fitted properly or there is something making the belt run too close, how is it sitting on the cam pulley?

[murtaghp 3]

The belt is sitting dead centre on the cam sprocket and very slightly recessed on the crank sprocket. I fitted it as close to the edge on the crank sprocket as I could.

 

i even pulled the water pump again to see if the smear of sealant from the first attempt was pushing the water pump out.

 

My next plan is to dress the old cover again with emery but it’s the same cover from the last belt that didn’t rub.

[Tom Fenton 1,650]

Have a close look at the water pump, I have seen an aftermarket pump casting push the cover over before.

[murtaghp 3]

Will do thanks as I’m running out of ideas with this.

 

on the upside, I can remove and refit the timing belt and covers in about half an hour now

[petert 641]

It has to be either the pump or the tensioner. Swap them out, one at a time, until you find which it is.

[DamirGTI 367]

Take a look at the belt with the covers off and whilst running at idle .. 

 

I had a few odd nasty ones which where defecitive from the box , they where cut off center from the roll of material .. so the belt swiped left-right sharpish whilst running and in one occasion busted the water pump bearing too .. 

 

Other times it was the head shifted up on the corner where the double washers go beneath the head bolt on top of the water pump , head bolt pushed onto/against the block cause of missing washer and lifted/twisted that corner or the head slightly so the belt used to wander off the cam pulley .. 

 

But most of them rub on the plastic cover bits , deppends how much ..