Mustache Bar Question

[tlorber]

Does anyone know why there is so much space between the mustache bar mounting bolts/studs on the car and the sleeves that go inside the urethane bushings? (the original bushing sleeves have just as much space by the way). I would think that something meant to counter the torque of the diff would have a tighter fit.

By the way, I wanted to thank all for the info on this site. Removing the old mustache bar bushings took a grand total of about 20 minutes per side due to the procedures described.

[240znz]

You should have a two parts to your urethane kit. 1 x bush and 1 x inner steel tube that fits between the stud/bolt and the bush. It will be a tight fit but not a press fit.

You shouldn't have any slack at all.

[Zs-ondabrain]

I'm confused on the space you're talking about.

Here's a before and after. (Rubber than Urethane)

Dave

[Arne]

Are you perhaps talking about the difference between the diameter of the body-stud and the inside diameter of the sleeve being bigger and not a snug fit? If so, you need to consider that how snug the sleeve fits over the stud means nothing - all the stud does is provide the means to tighten the sleeve to the body. It provides no strength in and of itself.

[tlorber]

Arne, yes those are the dimensions I was asking about. So are you saying there is no movement or slop around that stud?

[Arne]

Arne, yes those are the dimensions I was asking about. So are you saying there is no movement or slop around that stud?

Not after the nuts are properly tightened, no. The sleeves will be tightly clamped between the body on top and the big washer on the bottom. It won't be going anywhere.

[Zs-ondabrain]

What Arne said, and to add to it, there is also a washer on top of the urethane, between the body and the urethane. You can see it on the second picture I attached in post #3.

[tlorber]

Got it. Happen to know the torque setting for those?

[Arne]

Got it. Happen to know the torque setting for those?

Nope, no service manual here at work.

[Jeff G 78]

You can download the FSM from www.xenons30.com

[beandip]

If someone has removed the sleeve that is supposed to be inside the perch of the M bar. Just buy a short length of exhaust pipe the proper diameter and cut it to length then cut it from end to end on one side , so it can collapse or spread as the case may be. Then the Polly bushing should be tight inside the M bar. What Arne and Zs said is right on.

Edited February 10, 2010 by beandip
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