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noisy transfer gears
Posted: Sun Dec 21, 2008 9:12 pm
by built4thrashing
recently rebuilt the t/case in the sierra and it is really noisy. the noise is only really bad when under power at speeds and is really bad above 80km/h. to the point where it is heard over the stereo and the noise of the extermes.
Any thoughts what could be making such a loud whine and tips on how to fix.
Cheers B4T
Posted: Sun Dec 21, 2008 9:30 pm
by joeblow
was it shimmed as per the zook workshop manual?
Posted: Sun Dec 21, 2008 9:56 pm
by jonno_racing
mine did that...
then i added oil...
check the oil!! i felt like a tool when i did it!
Posted: Mon Dec 22, 2008 9:03 pm
by built4thrashing
the entire case was given to a gearbox rebuilding shop with the relivant section of the manual. and it came back just as noisy. Ive since swapped the gears into a different case as i fount the input shaft bearing was loose in its housing. new case is better but everything is still noisy..
And yes It has oil.
B4T
Posted: Mon Dec 22, 2008 9:09 pm
by St Jimmy
Bad bearing,
mine was noisy till i put new bearings in it.
Posted: Tue Dec 23, 2008 1:39 pm
by Pezooki
Hi B4T.
I assume that ALL new bearings were used in the rebuild? (Was the Front Output needle bearing, and the 2 main needle bearings replaced too?)
Pez
Posted: Tue Dec 23, 2008 2:00 pm
by brendan_h
joeblow wrote:was it shimmed as per the zook workshop manual?
is there anymore info i can get here? i got my rebuilt kit today and hopfully going to rebuild the tcase tomorow
Posted: Tue Dec 23, 2008 2:08 pm
by joeblow
done.....
Posted: Tue Dec 23, 2008 3:21 pm
by brendan_h
are you able to buy shims at repco maybe supercheap?
do you need a press to press the bearings off?
Posted: Tue Dec 23, 2008 10:01 pm
by GRPABT1
I got all my bearings on/off with a gear puller and a few sizes of pipe and hammer.
Posted: Wed Dec 24, 2008 9:44 am
by brendan_h
GRPABT1 wrote:I got all my bearings on/off with a gear puller and a few sizes of pipe and hammer.
thanks. a nothing thing i might add. is the tcase shifter supost to be able to pull out? how do i explain it. like there nothing holding it in there only the rubber boot?
Posted: Wed Dec 24, 2008 11:05 am
by Gwagensteve
no, there's a locking ring you have to push down and turn anticlockwise to release the lever.
Sounds like yours has come undone.
Steve.
Posted: Wed Dec 24, 2008 11:25 am
by brendan_h
does anyone have any pics of what the lock ring looks like?
Posted: Wed Dec 24, 2008 10:16 pm
by GRPABT1
Stock shifter on the right, evil twin shifter on the left with locking ring over it. Stock shifter works with a shifter bush (mine was gonesky), the evil twin doesn't. The locking ring pushes down and turns clockwise to lock onto the two pins inside the the cases shifter surround.
Posted: Wed Dec 24, 2008 10:49 pm
by jonno_racing
oooooh some one has twin sticks!
Posted: Thu Dec 25, 2008 10:15 am
by GRPABT1
joeblow wrote:was it shimmed as per the zook workshop manual?
What is the potential problem if it wasn't? Is it just noise or can the gears fail?
Posted: Thu Dec 25, 2008 9:30 pm
by joeblow
GRPABT1 wrote:joeblow wrote:was it shimmed as per the zook workshop manual?
What is the potential problem if it wasn't? Is it just noise or can the gears fail?
its like a diff, if there is noise than they are more than likely not running with an optimum pattern which could lead to early gear wear and maybe failure.