Heavy Vibration in Nissan GU at 70-90 KM Front left

Gday Rod and thanks for your reply

bearings was the first thing i checked when it first surfaced - i pulled them out - re packed them after i inspected them ( no pitting or damage) reinstalled and added preload

same problem

Boc

HI there - i have already moved tires from other corners of the car with the same effect . I am thinking of getting new tires , maybe geolanders as that's what was on the car i bought it and this prob really didn't surface until a few weeks after the new tires

everything looks straight no obvious bends or Hits that could have caused a Bend -- will have a closer look though

thanks for your input

Boc

If you go to this website and scroll down - it refers to faulty shocks and what I call 'scalloping'


Is this scalloping?

Does the scalloping of the tyres that you refer to look like the pictures on the website I posted?

I shall climb under tomorrow and take a look at that --- it has not been replaced since i have owned the car - does not have the original , but i also don't know its age

Thanks for your input :)

Boc

After i check the Steering dampener i might get the misses to take it for a run and i will ride next to her on my roadbike and have a good look to see what happens at that speed and if what you mention comes to play ... thanks

Boc

Greetings Dave - i lifted the horse of the ground today and tried that one - i was thinking along the same lines - no signs of oil leaks - no movement at all -- and all moving without any Binding at all

You know it may well be tires .... I had to get a new Front tire for my Road bike the other week - It was a very well known brand and about $350 --- new tire fitted -- took the bike for a run ... get to 70 - 80 Kmh -- bad shake - took it back the following day -- they done another balance -- took it back out --- same again -- get to about 70 -80 bad shake - if i took pressure off the handle bars you could see it wanting to go into a tank slap ( handle bars violently shaking left to right) -

took it back a third time -- guy claims must be bad bearing in my wheel -- and every other excuse under the sun -- i inform him that with the old tire it was dead Calm from 0 Kmh - right up to about 260 Kmh ( im too chicken to go faster on track days) - Spoke to the owner of the company - he told me to come in and he will have his Head mechanic look at it (The same guy that looks after his race bikes) he took it for a blast - - said it was terrible -- he will put a new tire on it ... 50 min later comes back -- says new tire is on ... he took for a test run already Perfect ..... i went home --- got up to freeway speed - dead smooth all the way through ...

This was a brand new tire that rated to over 300 KMH and buggered from the start BUT looked perfect - but could not be balanced .....

Maybe not my prob - but i hope it is ,.... just need to eliminate everything else

Boc

Very good question , something that i had already looked at -- I have auto hubs and never lock them in

could it be possible that maybe the auto lock has not disengaged ?

any way to check ?

Boc

Hi Ozboc.

Manually lock the other hub and try turning the driveshaft?? ---(assumes the diff is NOT LSD.)


That being said I'm still unclear as to wether you have tried other wheel/tyres on that side.
You seem to indicate that you have, but then you still suggest it might be the "tyres".
If it's the same with other wheel/tyres then it most likely NOT the wheel/tyre.

Peter

HI peter - I have rotated tires around the car -- ie back to front -- same result after tire change on same side - prob does not follow the tire that was a prob - the prob stays on front left even when tires are changed

Boc

Ok , i have the front of the Car in pieces

this is what i have found so far ---

Pulled both shocks off --- both very solid and working equal to each other push in with some force - requires a lot of force to pull back out -- if left alone will open up VERY slowly - not able to make any sudden movements with the shocks ( or any free play)

Removed the stabilizer bar -- found the MOunting rubbers Buggered --- going to replace these --- could this be the cause ?????

Removed Radius arm ( left side ) caster bearings- holes are way off centre - looks to be maybe internal damage - but once again no free movement ( look at Photo)

tie rods - pan rods -- no free movement - feel very solid and move with NO freeplay



If you want to see more photos in very high def ( about 2 MB each pic showing very clearly - follow this link then choose an image

You comments - wlii these things cause my problems >?

High res photos of steering issues