Isuzu Trooper Owners Club UK™

[Jamelle]

Sorry guys,

I was back at work last night. Can I assume from what is being said that what I need to do is stop driving in 4WD (which I have done), get my hub checked in the hope that it is that causing the noise and see what it is like in 2WD. Surely if there was some major damage it would be more apparrent or am I just wishful thinking?

[Google]

[markymoan]

Theres nothing wrong with hoping for the best
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[jonkem]

Yes, only drive in 2wd on the road. Make sure the hubs are unlocked, and keep your fingers crossed

As for major damage. If it is to the transfer case you won't know until you use it in 4wd. Remember though, only on a loose surface

To check the front axle on any surface: Engage 4wd, move the car forward apx 2mtr than stop. Switch to 2wd and do not allow the car to move backwards. When you move the car forwards again you will be turning the front axle. If you hear some bad noises, it's dead
To finish the test: keeping in 2wd move the car in reverse apx 2mtr and listen for the hubs unlocking, should be small clicks.
Good luck
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1994 KZJ70 Cruiser (currently filling the garage and causing some head scratching)
1988 MKI 3.1td Hybrid Van (Ex Bobtail)
1991 SWB Fronty 2.8td Hybrid
2000 Astra Estate (work)
2006 VXR Astra
MK1 SR Nova

[Jamelle]

[markymoan]

It sounds like all is fine
when you get a chance go to the farm track and spin the wheels in 2wd (not to harshly) engage 4wd, drive forward a few feet then try to spin the wheels again, you will notice the difference, and know if 4wd is ok.
Just remember to reverse in 2wd to unlock the hubs (leaving them locked wont damage anything in 2wd, its just to save fuel really)
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[jonkem]

As Mark says, try it in 4wd on some loose ground. Stop the car & engage 4wd. Move forward a couple of metres and listen for the clicks as the hubs lock. Then drive as you want while on the loose. Remember to reverse when you go back into 2wd to unlock the hubs. You will increase the loads in low range and now is probably as good a time as any to find any probs there may be
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1994 KZJ70 Cruiser (currently filling the garage and causing some head scratching)
1988 MKI 3.1td Hybrid Van (Ex Bobtail)
1991 SWB Fronty 2.8td Hybrid
2000 Astra Estate (work)
2006 VXR Astra
MK1 SR Nova

[markymoan]

I wouldnt be suprised if the noise was the hubs slipping under load, saving a lot of money
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[Philp]

The hubs may well have been slipping due to the wind up, when mine slipped (due to being knackered) they were very loud. It may have damaged the axle splines though and you may find the hubs will slip when in 4wd under load i.e. on a hill.
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Phil

96 or is it a 98 Isuzu Bighorn Lotus

[Jamelle]

Thanks again for all the replies.

I've not tried out your suggestions yet as the farm track, although quite rough, is a bit of a hard surface. I would rather find some slippy mud somewhere.
The really strange thing is, I'd been moaning to my son about this (as well as your good selves) so I said that I would take him out and let him hear the terrible noise in 2WD. Guess what......No noise, even at high speeds (60 mphish).
I was feeing a bit better about things when we got back so we decided to check the engine over. Guess how much oil was showing on the dipstick?.....................All I can say is Isuzu's must be damn good engines but anyway thats a post for a different forum. Is there a forum for lunatic buys Isuzu without even checking the oil?

[Steam Hound]

Auto hub problem - I think the first thing to do is to check the free wheeling hub internal assembly for end float to the drive shafts circlip, too much end free play will cause the noise which was fist said in this post.
The correct end float is zero to 0.3mm. Thats 0.012" in english