violent GU shudder
Submitted: Wednesday, May 09, 2007 at 18:40
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Member - stefan P (NSW)
Evening All,
Some ideas please, about a week ago my GU developed a very bad front end shudder at exactly 80-85kph. Absolutely fine at other speeds. Now I am familiar with the much loved "Patrol wobble", had it in the GQ and very slightly in the GU. But this came on suddenly which suggests to me a Failure of some sort. On visual inspection I can't see anything out of sorts BUT I can seem to feel some movement in the front wheels like when a bearing is gone in a two wheel drive, "that's what I am thinking" i say feel movement but can't see any movement. I don't recall hitting anything to damage a rim or tyre so I believe that is not it. So any ideas to
check out tomorrow would be great
Thanks Stefan
Reply By: Member - Glenn D (NSW) - Friday, May 11, 2007 at 21:56
Friday, May 11, 2007 at 21:56
Hows it going Stefan ,
You could try jacking the whole front end up and trying to move the wheels back and
forth to see if any thing is worn , but try it holding top and bottom of wheel then front and back ,
If you find nothing try swapping front and back wheels around , you should feel front wheel imbalance though the steering wheel and back wheel imbalance through the
seat of your pants !
Patrol front wheel shimmy is usually from lifted
suspension with no castor correction.
If its only happened recently something must have broken or departed ! , if you cant find it you may have to go to a mechanic.
Hope this helps you out .
Glenn.
AnswerID:
239412
Follow Up By: Member - stefan P (NSW) - Friday, May 11, 2007 at 22:21
Friday, May 11, 2007 at 22:21
G'day Glenn, I am great mate hows ya self, being so busy with work I hope to get a good go at the car tomorrow. I have firm dates for a over nighter trip in july at the
camp grounds next to the turon river. Sat 21st and Sun 22nd July. I will Post it on the
forum soon
Cheers Stefan
FollowupID:
500413
Follow Up By: Member - Glenn D (NSW) - Friday, May 11, 2007 at 22:37
Friday, May 11, 2007 at 22:37
You could also
check the four bolts on the top and bottom of each swivel hub for tightness.
The 22nd is my Birthday so I dont know how I will go getting a players pass ! Maybe I just have to pick the right present !
Glenn.
FollowupID:
500415
Reply By: geordie4x4 - Saturday, May 12, 2007 at 00:43
Saturday, May 12, 2007 at 00:43
What is it about the Patrol front that makes it so prone to wobbles?
My GU series IV is only just two years old and done 48,000 km. It has stayed standard until now when I have fitted an ARB set of springs and shocks giving a 2" lift. Now it feels very light in the steering and wobbles if the wheels are even slightly out of balance.
I had the wheel alignment done and it does not really need caster correction bushes (as they go too far).
Can anyone suggest a way to lessen the wobbles, slight caster correction. Has anyone tried the spacers that fit on the lower control arm to move it forward by 20 mm.
Will any of this help fix or prevent the wobbles.
AnswerID:
239458
Follow Up By: Member - stefan P (NSW) - Saturday, May 12, 2007 at 16:49
Saturday, May 12, 2007 at 16:49
G'day geordie4x4,
Just having a good look under my car with my brother inlaw, We have come to the conclusion that its a number of things that cause it. I belive in my case with 140,000 kms and all original stuff there its a case of small movement in the bearings being magnifyed through other worn components. So I am going to
check my bearings and when I do the shocks and coils will do the dampner and other bushs ect so its all nice and tight again. Makes sense to me
Cheers Stefan
FollowupID:
500537