Patrol Vibration

Submitted: Saturday, Jun 04, 2005 at 17:15
ThreadID: 23586 Views:2282 Replies:5 FollowUps:0
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Hi All,

Richard from South Africa here - very nice forum you guys have here.

If you are ever planning a bush experience in and around SA pop around to - good bunch of guys - lots of local knowledge for 4x4 ing trips / advice - they even allow cruisers and others :)

To my question though - I have a 97 Patrol SGL 4.2 petrol (thirsty thirsty) (equivalent to your GQ I believe - Square shape) that has an annoying vibration at about 100km/h (maybe 10 k ph eityher way). I have annoyed the cr@p out of my local tyre merchant getting them to balance and re-balance / check alignment etc. It doesnt really change it.

It also tends not to vary under accelaration / decellaration and although i can feel the vibration throught the steering wheel, the steering wheel itself doesnt shake as such.

The model came std with 15 inch rims and I am running 31x10.5 x 15 bBF goodrichs - - all pretty new and in good nick.

Could this be some kind of driveshaft vibration ?

Any feedback / similar experiences anyone has would be much appreciated.

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Reply By: Footloose - Saturday, Jun 04, 2005 at 17:31

Saturday, Jun 04, 2005 at 17:31
Hi Richard.
Have a peek in the archives here; sure I read another "missin in my Nissan" type who's problems ended up beeing his wheels ??
AnswerID: 114360

Reply By: oscar - Saturday, Jun 04, 2005 at 18:17

Saturday, Jun 04, 2005 at 18:17
Hi Richard .I have had a similar experience as a mechanic and a customers Nissan.The angle of the driveshaft is critical to Nissan .There are spacers up to 19mm marketed by ARB I think but dont write me letters if Im wrong I was told that by someone.We just fitted 16mm equivalent hardened washers between the chassis and the gearbox mount .That will lower the gearbox altering the angle of the driveshaft.It fixed the problem We then made up two plates 16mm x50mm flat drilled the mount holes and replaced the washers.For the life of me I will never know why the change was needed but it fixed the vibration .I might add uni joints tyre balancing and near everting else was tried first it was a long shot and a last resort but it worked. See what you think Jeff
AnswerID: 114369

Reply By: WDR - Saturday, Jun 04, 2005 at 21:57

Saturday, Jun 04, 2005 at 21:57
Hi Richard - I have seen many comments about the vibrating Nissans on various forums. I don't know what the ideal solution is but a dealer once told me to have the wheels balanced on the car.
When I was buying a new car a few years ago the new Patrol I tried out was doing it. Turned me right off, especially when the dealer said the above.

AnswerID: 114385

Reply By: Peter 2 - Saturday, Jun 04, 2005 at 22:17

Saturday, Jun 04, 2005 at 22:17
I've heard that the driveline angles are critical too, had afriend with the same problem and he also spaced the transmission down and solved the problem.
It is very critical on the short wheelbase models, as they run max angles to begin with.
AnswerID: 114389

Reply By: Groove - Monday, Jun 06, 2005 at 09:37

Monday, Jun 06, 2005 at 09:37
I have had a GU for a couple of years now and it has had a woble from day one (I bought it second hand) Recently I had the suspension replaced and lifted 50mm, the woble got worse.

I took it to Brooks Steering in Parramatta, they did a wheel alignment and ballance, what a difference, its perfect. I have read on this forum that others have tried the same sollution to elimiatate wobles from patrols with not great success, but it worked for me, very happy.

I Have no affiliation with this company. They also supplied and fitted a used tyre for my second spare for $30. Cant complain.
AnswerID: 114514

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