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Landlord

Member Since: 27 Oct 2009
Location: Hampshire
Posts: 582

Squealing under load

Need some input from the experts out there.

Last few weeks the 90 has been making some rattling noises which seem to come and go. Yesterday on a more extended trip a squealing noise began coming from the front. Can't pin point from exactly where.

Symptoms, under light load in any gear there's a screech, coasting nothing, heavy load nothing, change down to use engine braking and its just possible to get the screech briefly again. Rev engine in neutral - nothing heard

Thoughts were front prop shaft UJ's but no real vibration to speak of

Fan belt but all electrics seem fine and there's not much load on the electrical system, also replaced in January this year.

Turbo bearings but no loss of performance so far

Front diff has a slight weap from around the usual oil seal from diff to prop shaft coupling, haven't noticed any oil the floor so don't think it's that bad.

Power steering pump seems fine, no unusuall noise from lock to lock.

Last of the TD5's, 50000 miles on the clock, new clutch 10000 miles ago with uprated thrust bearing, regulary serviced, never had any real problems to speak of until now. 2007 TD5 90 Hard Top

4th Sep 2013 6:24am

appaloosadude

Member Since: 17 Oct 2012
Location: Buckinghamshire
Posts: 630

Exhaust manifold warped?

4th Sep 2013 6:26am

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5729

2006 Defender 110 Td5 USW Zermatt Silver

The squealing could be your exhaust manifold has warped. Check for the studs being loose/snapped, and sooty deposits at either end of manifold.

Andy

4th Sep 2013 6:26am

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6095

Re: Squealing under load

Landlord wrote:

Thoughts were front prop shaft UJ's but no real vibration to speak of

.

UJ's don't always vibrate, sometimes they really do squeel. a kind of cyclic squeel, as the thing rotates. try pumping some grease into them just to be sure.

4th Sep 2013 6:38am

Landlord

Member Since: 27 Oct 2009
Location: Hampshire
Posts: 582

appaloosadude wrote:
Exhaust manifold warped?

landy andy wrote:
The squealing could be your exhaust manifold has warped. Check for the studs being loose/snapped, and sooty deposits at either end of manifold.

Interesting will check today - it is chipped so could be a possibility.

Will also double check UJ's

2007 TD5 90 Hard Top

4th Sep 2013 7:04am

Martin 01

Member Since: 13 Feb 2012
Location: East Yorkshire
Posts: 502

Having that same issue with mine.
Think the manifold is warped.
Mine to has been remapped.
Will be checking it this weekend.

4th Sep 2013 9:52pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

Another vote for a warped exhaust manifold, I'm afraid. Had the same on my wifes' old DII, twice! Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

4th Sep 2013 9:59pm

Lou Sparts

Member Since: 15 Apr 2012
Location: Kent
Posts: 1501

2005 Defender 90 Td5 XS CSW Zambezi Silver

Can they be machined flat again or must you replace,just for future reference ! 2005 Td5 90 XS

Steve

4th Sep 2013 10:01pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

I think it depends how badly it's warped. We ended up with a new one as the manifold failed pretty catastrophically second time around, resulting in complete lack of power and a recovery home. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

4th Sep 2013 10:05pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5729

It can be reskimmed and this is the recommended way, otherwise you fit new and it will warp, like the old one. Where as one that has already warped is less likely to again.

Andy

4th Sep 2013 10:17pm

Landlord

Member Since: 27 Oct 2009
Location: Hampshire
Posts: 582

Think I've found the problem - warped manifold, thought I would have to check it with feeler gauges - didnt need too was quite obvious

Thanks for the replies, very helpful

When taking the manifold off there were 2 gaskets between manifold and head, presume that is normal ?

Click image to enlarge

Click image to enlarge 2007 TD5 90 Hard Top

14th Sep 2013 3:51pm

rustyboxx

Member Since: 08 Oct 2012
Location: Poole
Posts: 548

2015 Defender 90 Puma 2.2 CSW Montalcino Red

I had the same problem not long after I had mine remapped. Exchanged the warped manifold for a secondhand one from my indie that had been skimmed but also had the webs between the manifold branches ground out too. Apparantly this helps avoid further warping. 15 months on and still going strong.

2015 90 XS CSW TDCi - Beautiful
2007 110 XS DCPU - An itch that needed scratching
2005 90 Td5 XS CSW - Utterly brilliant
2001 Discovery 2 ES Auto - A phase I went through
1996 90 Tdi CSW - Uber reliable
1989 90 2.5 Petrol Hardtop - My first proper Landy
1985 Range Rover Vogue V8 -Troublesome

14th Sep 2013 7:35pm

Thor

Member Since: 17 Dec 2011
Location: Didcot
Posts: 446

Same issue with my TD5. When I had mine sorted by MID Engineering they also fitted something from JE Engineering to aid cooling, was only £60 or there abouts. Strong people are harder to kill and generally more useful!

14th Sep 2013 7:57pm

Trossachs turbo

Member Since: 14 Jul 2012
Location: Perthshire
Posts: 21

If possible change studs to engineered type, suggest JE engineering,I had mine re skimmed new studs all ok,should only be one gasket

15th Sep 2013 7:37am

Landlord

Member Since: 27 Oct 2009
Location: Hampshire
Posts: 582

Presume OEM gasket is made of two thin pieces of metal pressed together because two pieces came off !

Will be ordering new manifold and gaskets tomorrow

2007 TD5 90 Hard Top

15th Sep 2013 9:04am

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