Vehicle & Technical > Discovery
Bad Vibrations
nzoliver:
Hiya,
The gear doesn't seem to matter as yo can get it in low range as well at the same speed ( although to a lesser degree as the engine is reving its t*ts off at 55km/h!). :shocked:
Engine mounts seem good as do the gearbox ones. :undecided:
I don't have any droning but just virbation at what seems to be driveshaft speed.
The consenus on an American LR site is the front output shaft bearing. Might feel good but be knackered. The mechanics did run the bearing in their fingers and felt no rough spots.
The rear shaft has a new 'donut' so it's not that although we have not checked ballance of the rear shaft. In saying this, the problem went away when using the rear shaft only to test drive. :roll:
Hmmm :-k
Range Rover Blues:
Right, you've answered my next questions there already and I think the output shaft or bearings myself. I'd do both though to be safe and whilst it's striped check the shaft for straighness.
As well as the rubber doughnut there is a small internal rubber bush, if you don't replace this the doughnut only lasts a short time, so worth checking that, Sometimes removing the front prop covers up probelms with the back prop as it's under more stress, but I don't think it's the case here.
I have to agree that it's the output side of the T-box. It's just odd that difflock makes it go away, did you try engaging difflock when driving with both props on?
nzoliver:
Howdy,
Yep. Same prob when in difflock 'on the road'. :doh:
The old doughnut was ok just not genuine and a possible source of probelms but out it went anyway. There are no signs of belts to either shaft. A brand new shaft on the front gave us the same results.
Looks like the front output bearing!!
Range Rover Blues:
Yes I'd have to agree, it's certainly the front end of the transfer box and IIRC the bearing isn't too hard to swap :-k
Let us know how you get on with it though ;)
nzoliver:
HI,
Roger. Will do.
Thank you :grin:
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