Transfer box(?) noise

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wattfield

AKA Dirk Diggler
Posts
27,697
Location
Ayrshire-by-the-puddle
For the last couple of days there's been a whining noise from the drivetrain of my 1991 200Tdi Defender. Half a mile from home tonight it started rattling. It sounded like a propshaft UJ going. I had a look, and the UJs seem OK, but if I turn either shaft there seems to be excessive play and a rattling / clunking noise from the transfer box, more than the usual. It feels and sounds like play in a UJ when I turn the shaft, but within the transfer box.
The tone of the whine gets higher according to road speed rather than gearbox speed, ie it keeps getting higher as I change up through the gears.
Any ideas, hopefully cheap ones?
 
Forgot to mention, the transfer box was rebuilt after seizing a couple of years ago, by a very reputable gearbox specialist with plenty of Landy experience.
check play in both out put bearings and drop sump plate you can the feel if any of the gears have play or turn knotty by hand
 
Sometimes it can be hard to spot UJ problems while they are on the vehicle. Take them off and have a close look. Fingers crossed!
I was just about to say the same... I have had UJ's with sweet FA movement and then you get them off and they fall apart, it depends what position it is stopped in.
 
Sometimes it can be hard to spot UJ problems while they are on the vehicle. Take them off and have a close look. Fingers crossed!
I will, but when I get underneath & turn the shafts the play & noise does seem to be from the box :(
I can't do anything during the week as I have to work in the driveway and it's dark when I get home, and I'm going away for the weekend!
 
Ahem... slightly embarrassing, I've checked the oil level and there's next to bugger all in it.I removed the drain plug and there's actually very little swarf on it, so is there likely to be some damage, and if so what should I check for?
Is it possible there's no significant damage and I can just refill it?
 
Ahem... slightly embarrassing, I've checked the oil level and there's next to bugger all in it.I removed the drain plug and there's actually very little swarf on it, so is there likely to be some damage, and if so what should I check for?
Is it possible there's no significant damage and I can just refill it?

Bearings could be cooked, fill it up and see how you go...
 
id be surprised if gear teeth etc dont show signs of contact ,might run ok somewhat refilled but i wouldnt want any long journeys without a strip down
 
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