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ickle

Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1822

2008 Defender 110 Puma 2.4 CSW Alpine White

Noise from front of engine - unhappy bearing

Hope some one can help with info - at the end of last week just after I started the engine there was a nasty scream / rumble for about a second, then it was OK. It has done it a couple of times since always when cold.

I thought it was the inner idler as I sprayed a little grease on the centre and it seemed better - no noise next morning so I ordered and fitted a new one tonight - 8loody noise came back.

When I take tension off the belt, there is no noticeable play anywhere but I can hear an unhappy bearing somewhere at the front of the engine.

I intend to take the viscous fan off tomorrow to isolate that, but if its the pulley it sits on LR031367 seems damned expensive as its a complete unit, can the bearing be changed on its own?

I cannot make the noise happen by switching on the A/C, lights, steering etc.

Cheers Keith

11th Oct 2016 8:56pm

ickle

Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1822

small update

doing a detailed search of microcat it looks like the correct part number (if that is the faulty bearing) is PQS500520, which has been superceded by PQS500620 - still nearly £200, so same question, can the bearing be changed?

Cheers Keith

11th Oct 2016 9:21pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

http://new.lrcat.com/#!/1235/3714/4215/327/4274 number ( 9 ) ?

link site off line

Last edited by dorsetsmith on 14th Oct 2016 12:22pm. Edited 2 times in total

11th Oct 2016 9:33pm

ickle

Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1822

Thanks but no that was the one I replaced tonight, it's the central Hub the fan screws on.

I've searched masses of articles and forums but can't find if the bearing is replaceable -I don't even know if that's the fault yet just trying to get my ducks in a row.... !

Will look again tomorrow as I've got a long run to France next week and it will worry the hell out of me if its not100 per cent

Cheers Keith

11th Oct 2016 10:02pm

dgardel

Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586

ickle wrote:
small update

doing a detailed search of microcat it looks like the correct part number (if that is the faulty bearing) is PQS500520, which has been superceded by PQS500620 - still nearly £200, so same question, can the bearing be changed?

Cheers Keith

Go to a Ford Transit dealer............... Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License

12th Oct 2016 6:14am

ickle

Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1822

Hi Daniele

The pictures of the transit part are very different to the defender one - or do you know if the bearing can be changed for a transit one?

cheers Keith

12th Oct 2016 6:30am

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 362

Guess the price is for the whole assembly. You can change the bearings separately, I noted and marked the bearingnumber. These bearings are standard and you should get them anywhere.

Click image to enlarge

12th Oct 2016 7:02am

ickle

Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1822

Thanks for the responses, still no nearer though...

Struggled to undo the viscous fan, 36mm spanner, no good.
Spanner plus hammer - no good
Chisel on edge of flat - no good
18v Makita SDS on chisel only mode - instant success!!!!!

Noise still there with fan removed.

Dropped belt off, no noise so external to engine.

I can find no massive play anywhere & all pulleys turn nicely. Fan pulley has a little play in it, but turns smoothly. Would this be enough to give noise / harshness when under load & cold?

Cheers again

Keith

12th Oct 2016 8:07pm

hornet

Member Since: 04 Jan 2010
Location: Western Europe
Posts: 362

I can only guess, but yes, there should be no play at all. You will have to get the whole part then.

14th Oct 2016 12:20pm

ickle

Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1822

Thanks to everyone for help, managed to relocate plastic bracket under filter onto its lugs, then held it in place with finger clamps and then riveted.

No grumbling from bearing now, although not sure it was the source of the main noise so difficult to track down something that is intermittent, cold start only and only lasts for a second or two at most...

I will have a look at the old bracket tomorrow and post bearing number if I can see it

Thanks again Keith

15th Oct 2016 9:12pm

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