Quick fix but why'd it happen?

[ballibeg]

Bit of a squeal off my Trafic 2.0dci 115 van and lo and behold the drive belt tensioner pulley had melted. The bearing was still good but the roller around it had gone.

Its an easy fix but I cant see why it would happen. Any ideas?

Dave

 

[dobbslc]

Looks like it seized in one position ( not the one it's in now ) and the belt melted the part it was running on.
I'd say a duff bearing that's now cooled down and turns or something got flicked up and jammed it.
New pulley and belt should sort that.

 

[Chris Stevens]

Lucky it didnt cause more damage. Very often minor faults on French vans mean a new engine, or not economic to repair.

 

[dobbslc]

Yep the aux belt flips off and gets tangled with the timing belt!

 

[The_Yellow_Ardvark]

Get a timing belt kit and new tensioner. One point the tensioner was included in the kit.
That way you will get all the consumable pullies, springs etc.
Works out cheaper.

 

[julianthegypsy]

Is the water pump driven off the timing belt too? If so I'd change that as well. I lost my old vectra when the water pump seized because whoever changed the belt didn't change it. I was gutted, it ran on LPG and was a real workhorse.

 

[The_Yellow_Ardvark]

@julianthegypsy
the last transport manger were I worked, would only spend the minimum on the fleet vans. One Van The tensioner went. He only had that replaced, less than 400 miles later the belt went.
Van was sold as salvage. I think it went for £500 for a 4 year old van.

 

[BrokenBiker]

Are you testing the bearing under load to make sure it's ok? No point testing it with no load as it will spin all day long most times...only when they are loaded up will you see if it's jamming or anything odd

 

[julianthegypsy]

@julianthegypsy
the last transport manger were I worked, would only spend the minimum on the fleet vans. One Van The tensioner went. He only had that replaced, less than 400 miles later the belt went.
Van was sold as salvage. I think it went for £500 for a 4 year old van.

Seen that kind of stupidity many times. I was particularly cross because I had no history on it so I checked the belt and it looked like new. It went just after I spent £200 changing the oil and filters and a set of gold palladium plugs because it was LPG yadda yadda.

 

[octo0072000]

you may find the tensioner is knackered causing belt to slip in the first place
change the lot don't think you can buy just the pulley anyway

 

[ballibeg]

Thanks folks. Ordered up complete tensioner and new belt. Will look at water pump after next pay day.

Help appreciated,

Dave

 

[scotb]

alternator clutch pulley.......................

 

[octo0072000]

alternator clutch pulley.......................

Plus one on seized alternator overrun pulley as well
tensioner pulley and the alternator pulley are both common problems