centre bearing temp

Hi Ron
I would say you have your uni yokes misaligned there should be 2 arrows to line up on the slpines when you put back together .
If you haven't got yokes aligned will cause vibration & things to heat up.
Cheers

Hey Ron - my young bloke blew two new centre bearings before we figured out the problem.......the front universal was binding a little and once this was change everything was fine....that bearing is still going strong some 8 years later. The vehicle was also lifted about 3 inches by the previous owner and this put some stress on the bearing as well. To fix this I machined a 6 mm spacer to go between the rear diff and the propellor shaft and this put everything back into its right place.

G'day Ron
As you had to force the rubber carrier to line up the mounting holes, I would be checking that it has been installed the correct way around. I actually made this mistake once when installing a centre bearing and it caused a vibration.
Regards Jon

Thanks 4 replies,

I'm gonna limp into the fourbie shop on Tues an let them sort it out.

Something not right

G'Day All,

Further to replies, I decided, at the thought of the bill I may struggle to pay, to restrip it all n rebuild.

With a good mate present with knowledge we took it all apart n rebuilt it ourselves.

Firstly we noticed the first knuckle on the uni was slightly outta line from the gearbox end, so we aligned them.

Then we re-tapped the pretty poor centre bearing holding brackets from some unknown out to M10, fitted spring washers above and nuts n spring washers below, overkill I know but it aint comin off!

Next the only thing we did different was align and bolt down the centre bearing before joining the tailshaft.

previously I joined the tailshaft then bolted centre bearing.

This way I think it all aligned better but still had about 4mm gap to be taken up by the rubber centre bearing, but this was done no problem and it took up nicely, mate said that the bearing housing being rubber will adapt to the shape within a few hrs, and if undone later there would be no gap.

A subsequent road test revealed no vibration even if revving to redline.

When we got back bearing felt hot TO ME, but my bushy mechanic told me it was 'cool' as, and he felt rear diff, which had never been touched n it was same temp.

He assured me I could drive 500km and it wouldnt get any hotter.

So all good n no exy visit to 4x4 shop again!

just an update for those who may be following this thread.

happy easter to all

Ron