GU front end shimmy - Gone!
Submitted: Thursday, Sep 14, 2006 at 10:29
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Moggs
Just something to check out if your GU has the Patrol front end shimmy.
Mine had it bad between 75 and 90. I have had the 285/75/16 STT's balanced numerous times thinking that this was contributing to the problem, also have had a number of alignments done.
Had a small clunk in the front end - was loose bolts through the castor correction bushes. Once these bolts were tightened the front end shimmy is all but gone :-)
Apparently the bolts work loose when using poly castor bushes, which is not an issue with the genuine Nissan bushes.
So, if you have the shimmy, have poly castor bushes, then maybe check they are tight!
Reply By: Grandpa joe - Thursday, Sep 14, 2006 at 18:14
Thursday, Sep 14, 2006 at 18:14
Would like to add:
If these bolts have visible wear on them they should be replaced as they are difficult to be made tight enough once damaged !!!
( they will not clamp the bush properly )
AnswerID:
194565
Follow Up By: rustytruck - Thursday, Sep 14, 2006 at 22:11
Thursday, Sep 14, 2006 at 22:11
Had the wobbles something chronic on my GU and the dealer could not fix it. Did the wheel bearings and did it according to the Nissan workshop manual for the reassembly and it was all gone. The bearings seemed to be a little loose when removed.
Rusty
FollowupID:
452629
Follow Up By: Member - andrew B (Kununurra) - Friday, Sep 15, 2006 at 08:26
Friday, Sep 15, 2006 at 08:26
Gday Rusty
Was it a std, pretty easy job on the GU (I have done the old MQ a few times with little hasstle). I'm about due for brake pads, and there is a little play in the front bearings (bit of a wobble in the wheel with it jacked up), but still drives OK.
May do it soon, or would you think it would be better to wait a few months when I'll be getting new springs etc, do the lot at once?
Thanks Andrew
FollowupID:
452674
Follow Up By: rustytruck - Friday, Sep 15, 2006 at 22:43
Friday, Sep 15, 2006 at 22:43
Andrew, sorry it took a while to answer. It's not a hard job to make an adjustment. I'd do it now and thus ensure you have solved the problem before you get into the brakes and springs. Will only take a couple of hours for the first time - from start to back on the ground. Do you have the workshop manual? The
Gregory's manual is about as good as the factory manual.
Rusty
FollowupID:
452820
Reply By: 120scruiser (NSW) - Friday, Sep 15, 2006 at 20:19
Friday, Sep 15, 2006 at 20:19
To ensure proper wheel bearing tension on Patrol's you have to ensure the inner hub seal is all the way home when installed as the outer dust rim of the seal can ride up on the inner flange and restrict the bearings from seating correctly. When the seal beds in the bearings will be loose. I always tension the bearings to 30Nm and to
seat the bearings and then back them off. I then retension them to 1.5kgn for final setting. All vehicles in my workshop get the same treatment.
Hope this helps
120scruiser
AnswerID:
194738