80 Series drivetrain chatter
Submitted: Friday, May 27, 2005 at 13:52
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Spacko
I have an 1991 80 series Land Cruiser diesel with 250,000km. At low revs the drivetrain seems to chatter loudly and has done so since I bought it at 200,000km. If you drive slowly just labouring it slightly it chatters loudly and is very loud from the outside. I have managed to drive around this most of the time keeping the revs up but when I am 4wding just idling around in the bush it is very annoying. Can anyone shed any light on the problem. A lot of cruisers I have heard about the place do this and I have also heard some older patrols doing it too. Could it be the clutch or the gearbox ageing? I have taken it to mechanics and most have said that it is just the go of the beast. Thanks. Spacko
Reply By: 80scruiser - Friday, May 27, 2005 at 20:45
Friday, May 27, 2005 at 20:45
It is in the clutch damper springs/bushes. If it has never been done, the clutch that is, it will only have rubber bushes in it and they will be buggered. Replace the clutch with a genuine toyota one which still has the rubber bushes in it and springs. The noise will be great for a while but will eventually come back but not as bad. I don't recommend to use after market like I did, go straight for the genuine product. If the damper bushes are totally gone when you start it, it should make a loud bang until the clutch takes up.
Once you do the clutch put 80w/90 oil in the transfer case and then fill the gearbox with
mobil fluid 424 or
caltex brand textran. It will have never changed better in its life.
Best of luck.
Any further info required don't hesitate to ask.
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Follow Up By: Beast Of Bodmin - Friday, May 27, 2005 at 22:33
Friday, May 27, 2005 at 22:33
G'day 80Cruiser,
You need to be careful with ATF fluid in a manual box. Although l agree that the shift is usually much improved, the durability life of the gears is significantly reduced.
We found this in a previous job l had durability testing truck gearboxes.
Cheers
Beast Of Bodmin
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Follow Up By: 80scruiser - Saturday, May 28, 2005 at 14:47
Saturday, May 28, 2005 at 14:47
Textran isn't an ATF its a straight 80w oil used in ford power steering, agricultural machinery and toyata use it in the factory in the lc gearboxes.
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Follow Up By: Spacko - Tuesday, Jun 07, 2005 at 15:18
Tuesday, Jun 07, 2005 at 15:18
Thanks for your reply. That does sound like what the problem is and it does occasionly make a bang on start up too. I will look into replacing the clutch soon and will look into what you said about the oils.
Thanks again Spacko
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