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Joined: Oct 2007
Posts: 304
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Oct 2007
Posts: 304 |
I learned they do not screw off. How do you replace them?
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Heat the knob in hot water (not quite boiling) and push on the shaft. Of course you will need to break the original knobs off the shaft and clean them if anything sticks after breaking the knobs.
How Sweet the roar of a Chevy four!
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Joined: Sep 2010
Posts: 168
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Sep 2010
Posts: 168 |
Did the hot water trick on mine a couple of yrs ago and found the knobs discolored from ebony to a powder gray. They have a nice "aged" look about them, but Next time i'm going to bore the holes out and glue them in with J B Weld and keep the new knob look
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Joined: Jul 2009
Posts: 1,478
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Jul 2009
Posts: 1,478 |
I was able to remove the old knobs by pulling them off. I used a vice grip pliers with a shop towel to prevent scoring on the round surface under the knob to hold the metal rod. I used additional vice grip pliers on the old knob part. True they did break. The new knobs slid into place under pressure.
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Joined: Oct 2007
Posts: 304
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Oct 2007
Posts: 304 |
I tried using vicegrips to hold the cable and channel locks with duct tape wrapped around the jaws and only succeed in shattering the old knob, which is OK because I am replacing them any way. I think I will drill the opening on the new knobs slightly larger and glue them on the cable.
Removing them will be the next owner's concern when I am gone
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
I think I will drill the opening on the new knobs slightly larger and glue them on the cable. That is the method that I use for installing new knobs.   
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Jan 2008
Posts: 510
Oil Can Mechanic
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Oil Can Mechanic
Joined: Jan 2008
Posts: 510 |
I removed the old knobs,measured the shaft and drilled the holes in the new knobs .005 undersized. Then heated the shaft a small amount then slid the new knob on the shaft . Used air to cool them.
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Joined: Jul 2003
Posts: 521
Oil Can Mechanic
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Oil Can Mechanic
Joined: Jul 2003
Posts: 521 |
I got new knobs from the filling station. After immersing them in hot water as directed they ALL shattered when I tried pushing them on the shafts. Don't do this, it doesn't work. Drill out the knobs and glue them on.
ron
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
Drill out the knobs and glue them on. I had the same problem years ago so since then I always drill out the holes in the knobs so that the knobs will be a snug slide on fit and then I glue them on.
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Oct 2007
Posts: 304
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Oct 2007
Posts: 304 |
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