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bornrich's Avatar
 
Join Date: Oct 2001
Location: San Jose, Ca
Posts: 316
Shift knob working itself loose

I have an aftermarket shift knob that uses a crush sleeve (like the stock one). I purchased a new crush sleeve (from our host), inserted it in the shift knob and using a small pine board as a buffer, pounded it on. Now after a day or so, the knob is loose, lifted about 1/4 to a 1/2 inch and has the be pounded down again. It has done this several times. What am I doing wrong?

I have also tried twisting it around a couple of times before hammering it down but in as little a few hours it is loose again?

I may just bite the bullet, drill a small hole and insert a set screw but I thought I pick the collective brain of the board first.

Thanks

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Matt Rich
1999 Porsche 911 Zeniith Blue
1999 BMW 540i
2011 BMW 535i
Old 07-26-2007, 05:08 PM
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Join Date: Oct 2001
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Bump. Anyone with any insight on this problem?
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Matt Rich
1999 Porsche 911 Zeniith Blue
1999 BMW 540i
2011 BMW 535i
Old 07-30-2007, 03:25 PM
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19 years and 17k posts...
 
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Join Date: Jul 2002
Location: Dearborn, MI (Southeast Michigan)
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I gave up and used Super Glue on my shift knob and I just drove the car 600 miles without it working itself loose...
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Art Zasadny
1974 Porsche 911 Targa "Helga" (Sold, back home in Germany)
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Old 07-30-2007, 03:29 PM
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Join Date: May 2007
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you could try wrapping the shaft with duct tap to tighten the connection. otherwise i would glue it. im partial to momo, allen set screw type nobs. they stay tight for a while but even they need tightening once and a while
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Old 07-30-2007, 05:37 PM
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I think I will try the duct tape method first. Thanks
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Matt Rich
1999 Porsche 911 Zeniith Blue
1999 BMW 540i
2011 BMW 535i
Old 07-31-2007, 04:43 PM
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Join Date: Mar 2005
Location: Melbourne, Australia
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My Momo knob with 3 set screws kept working loose on my aluminium Rennshifter shaft. Despite the steel screws actually biting into the aluminium! I tried loctite and even that was only good for a short period.

I finally wrapped some tape just under the knob to act as a platform for the knob and then reappled loctite to the set screws. So far it's holding well.

If this fails then I'm back to the screw on knob.
Simon

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Old 08-03-2007, 05:13 AM
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