Thread: Squealing belt

Originally Posted by Xtreme

Are people having trouble with the tensioner or is it only the bearing on the the tensioner idler pulley. If it's only the bearing, it can be replaced for less than $10 or, if you catch it early enough the bearing can be dismantled, cleaned and regreased for about 15mins labour.

the nylon bearing the tensioner runs on wears (where the spring sits) and the arm/pulley can cant, or the tension is inconsistent, requiring replacement of the whole assy.

hi all how hard is it to replace all the pully bearings as well as the tensioner one in a td5 disco

Originally Posted by davidlivesey

hi all how hard is it to replace all the pully bearings as well as the tensioner one in a td5 disco

Refer to Post #7 on this Thread

To access them easily, it is advisable to remove the fan. For this you'll need a 36mm open ened spanner which is fairly thin (about 5mm I think) plus something to lock the pulley from turning - I used a 600mm tyre lever with a 10mm hole drilled about 70mm from the end - this fitted oner one of the 10mm bolt heads and against the shaft while you work the 36mm spanner.
The bearings can be done without removing the fan but if you have the tools, it's a lot easier.

Hi all, this is my first post!

In reply to the original poster, I don't use belt grip on v-belts.

It works well with the old-style single belts.

I learned the hard way: I had belt squeak from cold-start until reaching normal operating temperature. So I grabbed the belt-grip, sprayed it on, and from then on the squealing never stopped. After two days I could stand it no more and I was able to wash the belt-grip off the belt with kero, thus returning to the original problem.

(It turned out, as these things often do, to be the bearing in the tensioner pulley.)

YMMV but I don't use belt-grip on Rovers any more.

i had the same problem and couldn't fix, noisy bastard thing to, posted a thread on another forum and was surprised when someone recomended dusting with talcum powder or (baby powder) id tried it and it worked a treat, hav,t heard a squeek out of it since. just keep your head clear when you do it otherwise you will have a white face

[quote=karcraft1;678684]The main problem with squeling is caused by the belt.

Some makers (Dayco) have a smooth finish on the back which in most cases people have a problem. Other makers (Lemforder) have a "rough" finish on the back and problems are non existent.

I agree,
I have replaced: each of the bearings, the tensioner ($160), alternator - which was almost siezed($450), water pump($130), and finally the steering pump($220) , still squawking. Each time putting on a new belt. I even knurled the power steering pulley - no change. I then reinstalled the old cracked belt which has a pattern on the back, for the steering pump to run with, no more squawking. The dayco brand belt is glossy on the back, and allows the steering pump to slip, optional parrot at no extra, not suitable for disco because of the way it is used.

Originally Posted by karcraft1

The main problem with squeling is caused by the belt.

Some makers (Dayco) have a smooth finish on the back which in most cases people have a problem. Other makers (Lemforder) have a "rough" finish on the back and problems are non existent.

Hope this helps.

I was told this story so I bought a belt with a "rough finish on the back" and it made absolutely no difference. I can make the noise stop for a while with a dri-lube sick applied to the grooved side of the belt which makes me believe that it has nothing to do with what the back of the belt is like.

I had a problem with a screeching belt last year on my Cape York trip. Noise occurred on start up particularly but often would disappear after a while. Problem turned out to be simply dust on the belt. A wash down of the dust fixed the problem and as I've not been in the same level of heavy dust since, problem hasn't reoccurred. Seems too simple but is easy to check if this is the issue and is really cheap to fix.

Mal