Clunk on full left lock

Clunk on full left lock

Postby emjayar on Fri Jul 21, 2017 2:16 pm

I have done a search and found a few references to a light knocking sound on turning full lock. Mine is different.

I have been ignoring this for a couple of months but I am wondering what you might make of this:
2010 MN with OME lift
There is a significant Clunk when turning full lock left (not right) and it feels like it slightly overrides the steering a bit to the left. It feels like something pops over a threshold and binds — because it has the same clunk when coming back out of the full left lock onto a straighter orientation. It only happens in the last 80-90% of turning left and then on the way out again.

Possibilities I have found:
wheel alignment
UCA top bolt
Steering arm plastic cap

any help would be greatly appreciated.
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'07 ML GLXR 3.2L as seen in Australian 4WD Action issue 238
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Re: Clunk on full left lock

Postby NowForThe5th on Fri Jul 21, 2017 5:49 pm

Release and re-torque the control arm bolts. Too tight, even a little bit, and they'll clunk just like you describe.
Chris

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Re: Clunk on full left lock

Postby emjayar on Mon Jul 24, 2017 10:43 am

Cheers Chris....

Now I need a torque wrench and the torque values.
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Re: Clunk on full left lock

Postby NowForThe5th on Mon Jul 24, 2017 11:21 am

Torque values are in the online manual here.
Chris

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Re: Clunk on full left lock

Postby Toddyh on Tue Jul 25, 2017 8:39 am

I'd check the tie rod too. Make sure it's moving freely and not binding.
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