Lynx II, hull # 4225

[Harry Moon]

after a number of years with no issues I too had a shimmy when last driven in August. Checked things over and the only issue I could see that needed rectifying was the output bearing on the transfercase front axle output. It was noticeably loose so I took it out and replaced it. Haven't done more than a few kilometres on it so don 't know if that cured it.

[Phil Waterman]

Hi Guys

When chasing shimmy don't forget tire pressure, I've spent days chasing out all the play in the front end of CMPs sometimes with no luck. Then for laughs tried changing front tire pressure. Started at the low end then took them up 5 psi at a time and the shimmy started changing found a pressure where the shimmy only occurred well above comfortable driving speed for that truck.

Cheers Phil

[Hanno Spoelstra]

Further to the comments above, also read Chevrolet C60s - Front Wheel "shimmy"

[Bob Carriere]

It was the truck tire shop that told me to play with the tire pressure and rotate tires. After exhausting all the finer adjustments ni COMPLIED.

Now I am using the 10.50 x 16 and after some Tire rotation and reduction from 50 to 35 pounds all around the shimmy went away....... and the lower pressure gives a better ride.....

The old rules about checking up on loose bolts is valid....... after two years of driving the Spring check up turned up two rear axle U bolts loose....a quick fix but how does it happen?????



Cheers

[Peter Duggan]

Guys,

Gerry bought the LH inner spacer for the front wheel bearing which had 11 thousands machined off and the steering wheel which had the addition of a set screw opposite to the loose keyway.

A couple of test runs had the Lynx tracking as it should and NO desire to develop a shimmy after tackling multiple bumps at speed. It appears that there were multiple issues. In summary, alignment, loose LH wheel bearing, sloppy steering wheel, and what I consider the most significant was the loosened U bolts on the front axle.

After the sense of relief following some great runs, the Lynx decided to give me a dose of reality by locking up in fourth gear.

C'est la vie, Peter

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[rob love]

The lynx here will let you sneak out of a gear and then put in another gear like reverse. It will lock up the transmission. I find one just has to be very robotic and careful on the shifts, keeping the shifter in 90 degree movements as opposed to jaywalking it through the gate.

[David Dunlop]

Glad to hear you got the shimmy figured out, Peter.

Your last photo almost looks like bocage country in Northern France.


David

[Peter Duggan]

Originally Posted by rob love

The lynx here will let you sneak out of a gear and then put in another gear like reverse. It will lock up the transmission. I find one just has to be very robotic and careful on the shifts, keeping the shifter in 90 degree movements as opposed to jaywalking it through the gate.

Rob,

Thanks for your comments. You're quite right. I had just got back home from a great run through the countryside, parked and went to shift into reverse and was a bit slaphappy.

Any suggestions or hints as to how to best unlock the transmission. I decided to let it soak for a bit before I tore into it.

Thanks again, Peter