Thread: Fan Bearing

Yeh!, Go into The Good Oil and on about the 3rd or 4th page there is an excellent post on how to do this job, Regards Frank.
http://www.aulro.com/afvb/good-oil/6...ernatives.html

Yes, the bearing can be changed with some difficulty - extracting the horeshoe type circlip can be awkward if you don't know how. And, AFAIA, there is no conventional internal circlip thin enoungh with which to replace it - so you're left with putting that circlip back in.

In addition there is a lh thread to be aware of.

However, just be aware that the mounting shaft on which the tensioner partially rotates will be worn off-centre. This will lead to the serpentine belt chirping and eventually breaking possibly causing further damage from the broken belt whipping around.

Backyard experts will overcome this wear by strategically placing a 5c coin under one side when reinstalling to offset the wear. This possibly can last a little while to get you out of trouble.....

..... but can very well end in tears

The short & correct answer if you want remote area reliability is to replace the tensioner as a complete item - they are available and not expensive if you shop around.

For example http://www.paddockspares.com/alterna...em-300tdi.html + post - others haven't always used paddocks - there are others

If the bearing is smooth but just running dry, another repair option is to just get some new grease into it.
On mine, I removed the rear dust shield on the inside bearing, drilled a small hole in it, then refitted and pumped full of grease through the hole and worked it a bit until I was getting clean grease out the front bearing. Sealed the hole afterwards with a dab of RTV - 40K km later it was still good.

Originally Posted by 87County

<snip>
However, just be aware that the mounting shaft on which the tensioner partially rotates will be worn off-centre. This will lead to the serpentine belt chirping and eventually breaking possibly causing further damage from the broken belt whipping around.

Backyard experts will overcome this wear by strategically placing a 5c coin under one side when reinstalling to offset the wear. This possibly can last a little while to get you out of trouble.....

..... but can very well end in tears

The short & correct answer if you want remote area reliability is to replace the tensioner as a complete item - they are available and not expensive if you shop around.

For example Alternator belt tensioner Dayco OEM - 300TDI + post - others haven't always used paddocks - there are others

When I was reasearching how to fix the dreaded 300tdi belt chirping I saw a lot of posts (across different forums) where people had used the coin or washer method as a solution. Didn't see any reports of failures due to doing it.
IIRC, there were also people who posted about fitting a NEW tensioner and having the same chirping problem - that was subsequently fixed by the coin/washer.
Mine was fine for over 30K k's. From memory when I thought about it at the time I couldn't see any major issues with the solution.
If people have had failures I'm keen to hear about it...

Steve

87Country and steveG I am talking about the bearing that supports the fan pulley and fan, not the belt tensioner.

I don't have any noises it is due to me doing timing belt, and the fact it has done 330,000 km, I thought it would be a good idea to do this bearing

While on the topic of belt noise, I have not shirked on cost, I used a 10 cent coin instead of 5 cents, and all is still good well after twelve months.

Dave.

Hey mate

I have done this job much to my regrets

I did my timing belt at 100,000km. When I pulled the pulley off I noticed that the press on flange had a corner cracked out of it, obviously from a slightly to eager mechanic at the last timing belt change.

My bearing was a bit notchy so I borrowed a timing cover and got the parts to overhaul my timing cover. New bearing $100, new press on flange $50

Put it all together and swapped the timing covers back over. All good. Or so I thought

About 1500km later I threw a fan belt, so I put the spare on. 10km later it threw the spare. So I had a bit of a looky looky; turns out the aftermarket flange was beginning to work it's way off the bearing and the fan was about to jump off and munch it's way through my nice recently recored radiator.

Soo..

Four hours later after an embarrassing tow truck ride I pulled it all apart. Said damn the overhaul and splashed out and bought a brand new complete timing cover (This is the only way to get genuine parts for the timing cover)

In conclusion yes you can change the bearing but only use a genuine Landrover flange and apply plently of retaining compound

Make sure you measure the height of the flange to the timing cover so you can fit the new bearing to the same height

Press in this order:
Press bearing with flange on, out of timing cover
Press flange from bearing
Press new bearing into timing cover
Place socket behind new bearing and press flange onto bearing

If you want a decent bearing I have a very near new one sitting in my shed collecting dust. Send me a PM if you want it

Good luck

PM sent.

Dave.

Originally Posted by Mr Whippy

87Country and steveG I am talking about the bearing that supports the fan pulley and fan, not the belt tensioner.

I don't have any noises it is due to me doing timing belt, and the fact it has done 330,000 km, I thought it would be a good idea to do this bearing

While on the topic of belt noise, I have not shirked on cost, I used a 10 cent coin instead of 5 cents, and all is still good well after twelve months.

Dave.

Thanks Dave - I knew you were asking about the timing cover bearing.
My comment about removing the rear shield and pumping it full of grease was relating to that. But at 330K if its the original I'd be replacing it too...

Other comment was just on 87County's post about the tensioner fix..
Good to hear its working for you too - I went cheap and used a washer

Steve