belts - Land Rovers Only

monkey catcher · 06-21-2005, 12:36 PM

My '94 D90 squeals when I start it. I have adjusted the belts a few times and it works for a couple of days and starts squealing again. Any suggestions? It was like this when I bought it, and being a relatively new owner, I am not sure I have all of my bases covered.

Thanks.

Hailsharky · 06-21-2005, 03:42 PM

Are you sure its the belts and not the pullys?

What ever you do, dont use belt dressing.

It sounds like the bearings on the pullys are worn out.

That wont be fun to have seize up when your in a hot arid place.

Buckle · 06-22-2005, 06:08 AM

Another possibility worth checking is the waterpump - sounds silly but when they start to fail they will leak when cold. That being when there is no pressure in the cooling system to force the seal onto the shaft of the pump. The coolant can leak out onto the drive belt and cause a squeal on first start up in the morning. As the engine warms and pressure builds in the cooling system the leak stops and any coolant on the engine / belts evaporates.

Seen this on several other cars other than Landies so might be worth a check!

Agai n as above check all pulleys, tensioners and other ancillaries driven by the engine. Dry bearings can give the same symptoms.

Good luck!

Series 3 guy · 06-22-2005, 08:03 AM

Quote:

Originally Posted by Buckle

Another possibility worth checking is the waterpump - sounds silly but when they start to fail they will leak when cold. That being when there is no pressure in the cooling system to force the seal onto the shaft of the pump. The coolant can leak out onto the drive belt and cause a squeal on first start up in the morning. As the engine warms and pressure builds in the cooling system the leak stops and any coolant on the engine / belts evaporates.

Seen this on several other cars other than Landies so might be worth a check!

Agai n as above check all pulleys, tensioners and other ancillaries driven by the engine. Dry bearings can give the same symptoms.

Good luck!

Not being funny, but does anyone else notice that the thread titled "Belts" was answered by the LRO chap "Buckle". I just thought that it was funny.Perhaps I should keep these things to myself and the voices that tell me to burn stuf.........

monkey catcher · 06-22-2005, 01:44 PM

These are great places to start. Thanks.

OkieRover · 06-23-2005, 07:42 AM

Belt Buckle.
Thats classic.

Buckle · 06-23-2005, 02:01 PM

The pun wasn't intended!

Moeras · 06-24-2005, 12:08 AM

Have you replaced the belt? It could have streatched, How old is it?

monkey catcher · 07-07-2005, 12:47 PM

Solution: Turns out that it is a slightly sticky alternator. The new belt is getting stretched a bit because of the relative difficulty of getting the thing to turn. Once its tightened, its fine for a few days, and then stretches a bit and squeals again. Although not necessary yet, a new alternator would fix it.

I guess this leads to another question: Being new to the Defender, is there anything I need to watch out for when replacing a D90 alternator?

Also, I apologize for not having put this in the Defender category.

Thanks.

John C · 07-07-2005, 01:05 PM

Replacing an alt on a D90 is very easy. You might want to consider a higher amp alt. I have the 200 amp Mean Green alt on my Disco and installed a 200 amp on a customers D90 w/o any problems. Just a thought.

monkey catcher · 07-08-2005, 01:02 PM

This may be a naive question; What is the benefit of the 200 amp vs the stock (I think 120 amp) alternator?

Thanks for your replies.

06-21-2005, 12:36 PM	#1 (permalink)
monkey catcher Member Join Date: Jun 2005 Location: So Cal Posts: 29 Gallery: 0	belts My '94 D90 squeals when I start it. I have adjusted the belts a few times and it works for a couple of days and starts squealing again. Any suggestions? It was like this when I bought it, and being a relatively new owner, I am not sure I have all of my bases covered. Thanks.

06-22-2005, 06:08 AM	#3 (permalink)
Buckle Member Join Date: Mar 2005 Location: Salisbury, England Posts: 39 Gallery: 0	Another possibility worth checking is the waterpump - sounds silly but when they start to fail they will leak when cold. That being when there is no pressure in the cooling system to force the seal onto the shaft of the pump. The coolant can leak out onto the drive belt and cause a squeal on first start up in the morning. As the engine warms and pressure builds in the cooling system the leak stops and any coolant on the engine / belts evaporates. Seen this on several other cars other than Landies so might be worth a check! Agai n as above check all pulleys, tensioners and other ancillaries driven by the engine. Dry bearings can give the same symptoms. Good luck! __________________ Buckle `66 Light Weight

06-22-2005, 01:44 PM	#5 (permalink)
monkey catcher Member Join Date: Jun 2005 Location: So Cal Posts: 29 Gallery: 0	Thanks These are great places to start. Thanks.

06-23-2005, 02:01 PM	#7 (permalink)
Buckle Member Join Date: Mar 2005 Location: Salisbury, England Posts: 39 Gallery: 0	The pun wasn't intended! __________________ Buckle `66 Light Weight

06-24-2005, 12:08 AM	#8 (permalink)
Moeras Profesional Hunter Join Date: Aug 2004 Location: On the banks of the Great Grey-Green Greasy Limpopo River (Rudyard Kipling 1902) Posts: 442 Gallery: 0	Have you replaced the belt? It could have streatched, How old is it? __________________ Moeras ’74 SIII 88” 345 000 Miles & still going strong! Reality - an illusion caused by the lack of alcohol in the blood.

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06-21-2005, 03:42 PM	#2 (permalink)
Hailsharky Nacho Libre Join Date: May 2005 Location: So Cal "CL" Posts: 590 Gallery: 0	Are you sure its the belts and not the pullys? What ever you do, dont use belt dressing. It sounds like the bearings on the pullys are worn out. That wont be fun to have seize up when your in a hot arid place.

07-07-2005, 12:47 PM	#9 (permalink)
monkey catcher Member Join Date: Jun 2005 Location: So Cal Posts: 29 Gallery: 0	Solution: Turns out that it is a slightly sticky alternator. The new belt is getting stretched a bit because of the relative difficulty of getting the thing to turn. Once its tightened, its fine for a few days, and then stretches a bit and squeals again. Although not necessary yet, a new alternator would fix it. I guess this leads to another question: Being new to the Defender, is there anything I need to watch out for when replacing a D90 alternator? Also, I apologize for not having put this in the Defender category. Thanks.

07-07-2005, 01:05 PM	#10 (permalink)
John C 4x4 Adventure Gear Join Date: Nov 2004 Location: Tappan, NY Posts: 1,175 Gallery: 0	Replacing an alt on a D90 is very easy. You might want to consider a higher amp alt. I have the 200 amp Mean Green alt on my Disco and installed a 200 amp on a customers D90 w/o any problems. Just a thought. __________________ John C 1996 DI - 3" AG lift 1995 DI - Scorpion Racing Extreme Kit 1991 RR - parting out (few parts left) 1990 Kawasaki KL650B Tengai 1989 Kawasaki KLR650

07-08-2005, 01:02 PM	#11 (permalink)
monkey catcher Member Join Date: Jun 2005 Location: So Cal Posts: 29 Gallery: 0	200 amp? This may be a naive question; What is the benefit of the 200 amp vs the stock (I think 120 amp) alternator? Thanks for your replies.

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