Holy loose shift knob Batman!, seriously? |
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Holy loose shift knob Batman!, seriously? |
Will Hesch |
Dec 18 2016, 03:42 PM
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#1
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Newbie Group: Members Posts: 18 Joined: 8-December 16 From: Atascadero, California Member No.: 20,655 Region Association: Central California |
Purchased a new to us '75 2.0 yesterday and the shift knob (wooden Porsche w/badge) came off no less than five times on the 200 mile drive home during down-shifts.
I can't believe the factory would send out shift knobs not attached with threads. The knob is a real Porsche (off what, I can't remember) wooden knob and the metal whackadoo shim-thingy is in place and it takes some pressure to push it on the shaft, but really? Is it just my set-up? Is the factory 8-ball shift knob less prone to coming loose? Thanks again, from a newbie. Will BTW, if anyone wants to trade their stock knob for the (claimed) $80 wooden one I have, please, make my day! 805-550-7865 |
mark04usa |
Dec 18 2016, 03:55 PM
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#2
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'70 1.7 Tangerine Group: Members Posts: 351 Joined: 14-September 09 From: Austin TX Member No.: 10,805 Region Association: Southwest Region |
Your wooden shift knob is an aftermarket replacement. They are usually secured with an Allen headed set screw. The factory supplied black plastic shift knob is secured with a crush ring, and it does not easily come back off.
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mepstein |
Dec 18 2016, 03:55 PM
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#3
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914-6 GT in waiting Group: Members Posts: 19,269 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Buy a new $8 crush ring.
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jmill |
Dec 18 2016, 04:12 PM
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#4
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
914 Rubber has the shift knob and crush sleeve.
http://shop.914rubber.com/Interior-parts_c...p3plqscsfapp005 |
TheCabinetmaker |
Dec 18 2016, 04:28 PM
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#5
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Like Mark said, not from factory. It never fit right and never will. Post a pic. Someone might know who made it.
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Tom_T |
Dec 18 2016, 04:44 PM
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#6
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California |
Like Mark said, not from factory. It never fit right and never will. Post a pic. Someone might know who made it. Sorry to disagree with the 914 Maestro of Tulsey Town, Curt, but .... I had & still have the leather wrapped version - assuming it is the AMCO Porsche Crest type sold at the Porsche+Audi Dealers & aftermaket sellers & AMCO themselves - & mine has always fit well since I first test drove it in Nov `75, purchased in Dec 75 at +/-45,000 miles as 2nd owner, & drove it to 172,000+/- .... .... & it's still on there tight as factory today! FYI for OP to compare with the Walnut version - > the allen screw is on opposite side of the 2nd pic, but I don't have that side in a pic. Yes, it should have either a crush sleeve or allen screw to hold it on, as Curt & all above have said above. (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/santa_smiley.gif) Tom /////// |
Mark Henry |
Dec 18 2016, 06:48 PM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I have an Amco leather on my Rennshift and the young lad also has one that looks brand new on his stock shifter, solid as a rock.
Now I have the same issue with the stock knob and crush washer on my '67 bug with a 901-911 trans and shifter. The crush washer is a one use only....and damn that's what I forgot to order from 914rubber.... (IMG:style_emoticons/default/dry.gif) |
Mike Fitton |
Dec 18 2016, 06:55 PM
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#8
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Senior Member Group: Members Posts: 609 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest |
Amco did not make any leather shift knobs those are vinyl.
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Rsjg911 |
Dec 18 2016, 06:55 PM
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#9
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Member Group: Members Posts: 89 Joined: 13-June 16 From: Weston, Florida Member No.: 20,105 Region Association: South East States |
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Mark Henry |
Dec 18 2016, 06:58 PM
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#10
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Amco did not make any leather shift knobs those are vinyl. OMG! (IMG:style_emoticons/default/huh.gif) I just assumed they sacrificed a real nauga for it's hide! |
Coondog |
Dec 19 2016, 01:56 AM
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#11
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Advanced Member Group: Members Posts: 2,089 Joined: 24-September 15 From: Apple Valley Calif Member No.: 19,195 Region Association: Southern California |
Those wooden ones are for sale on EBay all the time.
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Mikey914 |
Dec 19 2016, 02:34 PM
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#12
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The rubber man Group: Members Posts: 12,661 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
Allen is the only way to make them hold. I'm doing another run of the knobs now, I'll try to add an Allen to see if a "factory " look knob can be modified to an Allen screw mount. My bases are not cheap plastic, they are delrin. So they may support the load of an Allen. I'll check Thursday when I'm back..
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forrestkhaag |
Dec 19 2016, 05:43 PM
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#13
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Senior Member Group: Members Posts: 935 Joined: 21-April 14 From: Scottsdale, Arizona Member No.: 17,273 Region Association: Southwest Region |
One other way is JB Weld. My stock knob popped off right after purchasing the car and a few smears of JB up the tube, and it is on to stay. Now I just have to hope the rubber boot stays in shape for the life of the shifter....... (IMG:style_emoticons/default/hissyfit.gif)
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TheCabinetmaker |
Dec 20 2016, 08:06 AM
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#14
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
I have an Amco leather on my Rennshift and the young lad also has one that looks brand new on his stock shifter, solid as a rock. Now I have the same issue with the stock knob and crush washer on my '67 bug with a 901-911 trans and shifter. The crush washer is a one use only....and damn that's what I forgot to order from 914rubber.... (IMG:style_emoticons/default/dry.gif) One use only? Guess I've been lucky. I have had shift knobs off hundreds of times. I have never replaced a crush sleeve and never had a problem in 43 years. |
Mark Henry |
Dec 20 2016, 11:50 AM
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#15
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I have an Amco leather on my Rennshift and the young lad also has one that looks brand new on his stock shifter, solid as a rock. Now I have the same issue with the stock knob and crush washer on my '67 bug with a 901-911 trans and shifter. The crush washer is a one use only....and damn that's what I forgot to order from 914rubber.... (IMG:style_emoticons/default/dry.gif) One use only? Guess I've been lucky. I have had shift knobs off hundreds of times. I have never replaced a crush sleeve and never had a problem in 43 years. Guess you have been lucky. My knob or more often the crush washer has ended up in the back seat, front seat, under the seat or under my feet more times than I can count. (IMG:style_emoticons/default/dry.gif) I always forget to order a crush washer, I've also thought seriously about JB welding it in place. |
TheCabinetmaker |
Dec 20 2016, 11:52 AM
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#16
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
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VaccaRabite |
Dec 20 2016, 03:35 PM
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#17
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En Garde! Group: Admin Posts: 13,442 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
If you don't have a crush washer thats new, you can use paper or felt to securely hold on the stock knob.
When I was making knobs, I held my prototype on with paper for about 2 years. Just cut a slip of white printer paper about 2.5 inches long and 2 inches wide. IIRC I needed three folds to get a good TIGHT fit, so you end up with a paper 2.5 inches long and 1/2 inch wide. Center the paper over the top of the shifter of the shifter and fold down the "legs." You should have to tap down the knob with a leather or rubber mallet. Zach |
VaccaRabite |
Dec 20 2016, 03:37 PM
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#18
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En Garde! Group: Admin Posts: 13,442 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Allen is the only way to make them hold. I'm doing another run of the knobs now, I'll try to add an Allen to see if a "factory " look knob can be modified to an Allen screw mount. My bases are not cheap plastic, they are delrin. So they may support the load of an Allen. I'll check Thursday when I'm back.. I experimented with this. The delrin strips out before the allen has enough tension to hold fast to the lever. Maybe if you use a bigger allen screw, though. Or find one that uses deeper threads. But the standard ones stripped out the delrin pretty quick. Zach |
rhodyguy |
Dec 21 2016, 11:26 AM
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#19
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,079 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Dimpling the shift lever for the set screw helps. JB Weld is hard to undo.
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mlindner |
Dec 21 2016, 11:57 AM
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#20
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Senior Member Group: Members Posts: 1,520 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest |
My stock plastic knob came off all the time auto-crossing, one time out the window....drill hole in back side/tapped and install allen screw...done. Best, Mark
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