Vehicle & Technical > Discovery
Bad Vibrations
nzoliver:
Hi all,
Today's information:
ANOTHER NEW donut - The old 1 had torn!
Ballanced both driveshafts - they were both out but by less than 1oz.
All this has made a difference - quite markedly.
Smooth now - EXCEPT fot the 55km/h point. I'm beginning to think now we have a bush issue, maybe the locator arm bush?
Thoughts???
Range Rover Blues:
If the doughnut has torn that's a classic sign that the rubber spigot bush inside isn't doing it's job, but TBH I struggled to get my prop balanced and ended up having it rebalanced with the new doughnut on.
Also my LSE is as fussy as hell about wheel balancing and even some brands of tyres it doesn't like :-k at all.
nzoliver:
Howdy,
Hmm, well wheel ballance wed arvo if I can. Do y'all reckon the spigot bush should be changed with the donut? :roll: This is the bush inside the rear shaft that the spigot sticking out of the diff goes into? Is there a part number for this? Or a picture?
Range Rover Blues:
Can't help with ther picture but if you're buying the rubber doughnut then they should be able to get the bush. Yes it needs swapping, if the doughnut has worn then bet your shirt the spigot has gone too.
Unlike the rotaflex couplings used by Ford and Triumph amongstthers the LR joint is not self-supporting.
nzoliver:
"I also think that a lot of people dislike the rubber doughnut because they have had bad experiences with them, breaking up when nearly new and bad vibrations. Ironically it's often down to the fact that the centre spigot get neglected when the doughnut is changed. If you see chafing on the face of the doughnut then the spigot is goosed."
Hiya RRB! I pinched your reply (above) as it may pertain to my problem as well. I had a little chaffing on the front surface of the donut. I had the spigot measured when they were doing the shaft ballance and it was 15 thou out. I'm picking this is causing the chaffing now after reading your reply. Also, have you a part number for the spigot bush as it doesnt show up in the LR service manual?
Thank you
Oliver :clap:
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