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WOOHOO finaly found out where noise is coming from.
Posted: Fri Dec 29, 2006 6:25 pm
by gqroo
Grinding noise i thought was coming from gearbox was actually the rear diff, put the back on jack stands, front against a large immoveable object 4th @ 60kmh
jumped out noise definately diff, took tailshaft out went for a drive to confirm [fwd] Voila no noise, Now would you peoples agree in my thinking this was a pinion or carrier bearing.
thanks ahead
Posted: Fri Dec 29, 2006 9:35 pm
by Woop
Check for: Dented pinion mud shield, wheelbearings run dry, wheelbearing outer grease shield maybe has grit trapped in it....
Nick
Posted: Fri Dec 29, 2006 11:32 pm
by gqroo
thanks Nick il check it out.
Posted: Sat Dec 30, 2006 5:50 pm
by ozy1
you are saying when you took out the tail shaft and drove it your noise was gone,
id be starting to think your noise is in your tailshaft, maybe one of your unis, even without the tail shaft, id expect it to mkae noise as evrything is still moving whilst drive in fwd
Posted: Sun Dec 31, 2006 10:47 am
by Ruffy
ozy1 wrote:you are saying when you took out the tail shaft and drove it your noise was gone,
id be starting to think your noise is in your tailshaft, maybe one of your unis, even without the tail shaft, id expect it to mkae noise as evrything is still moving whilst drive in fwd
Pinion bearing wont necessarily make noise when the tailshaft is out as it has no load on it.
Posted: Tue Jan 02, 2007 10:40 am
by gqroo
Have replaced both unis, it makes the most noise coasting with clutch in any where from 60-110, why do these things always happen in the middle of holidays
Posted: Tue Jan 02, 2007 11:07 am
by rvh96
is there any movement in the tailshaft splines
Posted: Tue Jan 02, 2007 11:56 am
by gqroo
rvh96 wrote:is there any movement in the tailshaft splines
No theres no movement, im almost certain its either wheel,pinion or carrier bearing.One thing i forgot to mention was when coasting foot on clutch if i applied the handbrake the noise would stop,this maybe loaded the pinion-carrier up enough to stop noise, just a thought.
Posted: Tue Jan 02, 2007 2:48 pm
by gqroo
Well i have just flipped my tail shaft and guess what the noise has virtually gone
please explane
re:noise
Posted: Tue Jan 02, 2007 2:51 pm
by Nelso
Sounds like the front and rear uni's are at different angles and throwing the dynamic balance out.
Posted: Tue Jan 02, 2007 2:58 pm
by gqroo
Can i leave shaft like this or will it cause problems, i do plan on getting adj arms soon to align properly.
Posted: Tue Jan 02, 2007 5:34 pm
by Jimmu
I am having the exact same problem with my MU.
It would be nice to work out what is is...
I think there is some small play in the spline...
Jimmy
Posted: Thu Jan 04, 2007 1:01 pm
by gtipps
I have the same prob with my swb gq
The noise got worse when I replaced a tired 2" lift (with another 2" lift) & put put on 33" MTR's - from 33" ATR's
I dont know which caused what, cos I did them both at the same time, the combined height gain from tyres & the lift was about 30 -35mm, so I was leaning towards an alignment problem
The noise is most prominent with clutch in, or coasting in nuetral around 85 kph, under no load.......?
Had an "expert" take it for a drive & he reckons it's the tyres ?????
With all the shorties out there, someone must have come across this b4 & know what the answer is
cheers
gt