GU PATROL KNOCKING NOISE
Submitted: Saturday, Oct 20, 2007 at 22:37
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5
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Member - JASON C (WA)
Hello to all, took the gu to the Powerlines track for a night run last night, about 3/4 of the way through the gu developed a loud knocking noise as l was making my way up a steep track. I could only here the noise when the gu was under load under light throttle the knocking was bearly audible. I then proceeded to put the gu in 2wd and the noise disappeared so l have tracked it down to the front drivers side hub. If anyone could shed some light on what my noise is would be greatly appreciated eg. maybe cv, axle spline or bearing ?
Reply By: Member - Ian H (NSW) - Saturday, Oct 20, 2007 at 22:53
Saturday, Oct 20, 2007 at 22:53
Sounds like a stuffed CV joint. Is it worse when in a turn near full lock? If so be pleased, at least the engine didn't go Bang!
AnswerID:
267601
Follow Up By: Member - JASON C (WA) - Saturday, Oct 20, 2007 at 23:01
Saturday, Oct 20, 2007 at 23:01
Hi Ian, yes it is worse when at full lock, thanks for your input
cheers !
FollowupID:
529981
Reply By: ferris - Sunday, Oct 21, 2007 at 12:16
Sunday, Oct 21, 2007 at 12:16
May be one hub didn't lock in properly.
AnswerID:
267642
Reply By: ferris - Sunday, Oct 21, 2007 at 12:16
Sunday, Oct 21, 2007 at 12:16
May be one hub didn't lock in properly.
AnswerID:
267643
Reply By: keith & louise - Sunday, Oct 21, 2007 at 17:07
Sunday, Oct 21, 2007 at 17:07
try to manually lock the front hubs and see if the problem still occurs.
keith
AnswerID:
267673
Follow Up By: Member - JASON C (WA) - Sunday, Oct 21, 2007 at 22:03
Sunday, Oct 21, 2007 at 22:03
Tried to manually lock hubs noise still their !
FollowupID:
530113
Reply By: Martyn (WA) - Sunday, Oct 21, 2007 at 18:16
Sunday, Oct 21, 2007 at 18:16
Jason,
Not sure how technically competent you are but if you want to remove the auto locking hub undo the cap heads with the centre bolt manually locked and remove the auto locking hub and have a look sometimes you can have problems with the lugs, you could also check the splines whilst you've got the hub off.
Taking a bit longer, bit more diagnostic, you could disconnect the propshaft from the rear of the transfer case, jack up and support the from chassis so the wheel are
well clear of the deck and start the vehicle up in low 1 in 4WD, moving the steering slowly from side to side this will help you find the noise easier.
There is more risk involved you have to be careful doing this sort of stuff obviously but taking the right precautions, good quality axel stands in the right
places, no kids around etc etc
AnswerID:
267686
Follow Up By: Member - JASON C (WA) - Sunday, Oct 21, 2007 at 22:08
Sunday, Oct 21, 2007 at 22:08
Martyn,
Thats what the noise sounds like that the splines in the hub are grabing then slipping under load !
FollowupID:
530115
Follow Up By: Martyn (WA) - Friday, Oct 26, 2007 at 20:19
Friday, Oct 26, 2007 at 20:19
Jason,
Sorry I didn't reply sooner, have you sorted your problem out yet? Did you find out what the noise was? These sorts of noises are hard to diagnose without either hearing it or having a lot more detail. Could be the splines but usually once they go that's it there's no return to normal. CV joints will click at various volumes depending on load for quite a while. saying that when they smash it can be quite spectacular, this usually happens when you least want it to.
FollowupID:
531132
Follow Up By: Member - JASON C (WA) - Friday, Oct 26, 2007 at 23:24
Friday, Oct 26, 2007 at 23:24
Martyn,
Had the hubs off and they seem to be ok, cv joint has no clicking noise coming from it when I turn.So I have narrowed it down to the diff, spoke to Rob Robinson at Robinson Bros 4WD and he seems to think it could be a collapsed axle bearing. I'm taking the GU to his workshop on Wednesday for them to look at it. Worst case scenario it could be the crown wheel or the pinion gear, guess I'll find out Wednesday. Thanks for your advice been most helpful !
FollowupID:
531192