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Joined: Jun 2011
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Grease Monkey
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Grease Monkey
Joined: Jun 2011
Posts: 7 |
I ordered new brake drums for my '46 pickup as part of totally replacing the brakes. Before I break something thought I'd ask - what is the best way to separate the front hubs from the brake drums? I've soaked in Gibbs penetrating for the last several days. I've tried tapping the studs with a hammer but they don't budge. Do I need to be more aggressive with a heavier hammer? Or am I missing something everybody else knows? Thanks!
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Joined: Oct 2009
Posts: 1,294
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Oct 2009
Posts: 1,294 |
There was a post on this not long ago. Tap on the DRUM in between the stud while putting some presure with a bar or large screwdriver between the drum and backing plate. You may also apply heat to the drum near the center.
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Joined: Apr 2005
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ChatMaster - 1,000
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ChatMaster - 1,000
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I had a similar challenge with this effort on my '46 half ton, last year. I tried all the tricks my buddies could offer and nothing worked. I finally decided that if the drums were that stuck drastic measures would do no worse harm than using a gear puller. It worked like a charm. The only damage was broken springs. These were going to be replaced anyway, so no real harm resulted.
As a footnote: I also learned the kingpins etc. needed replacement.
Good Luck!
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Joined: Jun 2011
Posts: 7
Grease Monkey
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Grease Monkey
Joined: Jun 2011
Posts: 7 |
I'm sorry, I didn't describe this right. The drum and hub came off the spindle easy. I'm trying to separate the drum from the hub so I can install the new drums I bought on the existing hubs. Thanks for the suggestions.
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Joined: Nov 2001
Posts: 5,906 Likes: 8
Former ChatMaster ChatMaster - 5,000
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Former ChatMaster ChatMaster - 5,000
Joined: Nov 2001
Posts: 5,906 Likes: 8 |
Loosen the lug nuts about 3 threads, and then drive the car/truck around the block. Stay below 15 mph. Turn frequently. When you hear the clang, clang sound, head home. 
Bill Barker
Previous VCCA CHAT Administrator
(VCCA Member: 9802)
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Joined: Sep 2009
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ChatMaster - 6,000
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ChatMaster - 6,000
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Bill, Please stick to the internet/computer stuff and leave the automotive technical stuff to the rest of us.  Thanks, Charlie 
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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 |
What's the matter Charlie? Can't stand a little competition?
How Sweet the roar of a Chevy four!
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Joined: Nov 2001
Posts: 5,906 Likes: 8
Former ChatMaster ChatMaster - 5,000
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Former ChatMaster ChatMaster - 5,000
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Posts: 5,906 Likes: 8 |
Ha... I took so long to write my response, that a new posting got posted ahead of mine. So my response wasn't necessary. But -- I still subscribe to the "loosen" and "drive 'em" method. 
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Backyard Mechanic
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Backyard Mechanic
Joined: Feb 2010
Posts: 323 |
Dave
Are you sure that the drums are not held with 3 rivets to the hubs???
Jianis
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Joined: Jun 2011
Posts: 7
Grease Monkey
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Grease Monkey
Joined: Jun 2011
Posts: 7 |
I'll check if there are rivets tonight - thanks. I did read somewhere that some have rivets and some don't. Boy will I feel stupid if they're there - I never cleaned all the dirt off to be sure. Thanks!
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Joined: Feb 2010
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Backyard Mechanic
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Backyard Mechanic
Joined: Feb 2010
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You are welcome.I hope it helps.
Many people do not realize that because the rivets dont show in the manuals.
Jianis
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Joined: May 2011
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Oil Can Mechanic
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Oil Can Mechanic
Joined: May 2011
Posts: 596 |
You are welcome.I hope it helps.
Many people do not realize that because the rivets dont show in the manuals. Jianis My '40 SD has the drums rivetted to the hubs. I've never had to replace the drums, but I hadn't even thought about separating them and replacing only the drums. Something else to consider when I get to that point. I had the left front apart the other day to replace the brake hose and rebuild the cylinder. The pads are looking good, but the drums do need some cleaning up. Hopefully they won't be so far gone as to need replacing.
Richard
Waverly, IA
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Joined: Feb 2011
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ChatMaster - 3,000
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ChatMaster - 3,000
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I always heat the drum (w/acetylene/rosebud tip)near the hub...for about 30-40 seconds...(w/a circular motion) tap it w/lead-brass hammer and apart they come ! It's the way that works for me! good luck...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: May 2011
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Oil Can Mechanic
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Oil Can Mechanic
Joined: May 2011
Posts: 596 |
I always heat the drum (w/acetylene/rosebud tip)near the hub...for about 30-40 seconds...(w/a circular motion) tap it w/lead-brass hammer and apart they come ! It's the way that works for me! good luck... When putting them back together do you use rivets? I recall seeing some with machine screws in them. Perhaps they were replaced and the hubs tapped for the screws. Or perhaps in later years they used screws rather than rivets?
Richard
Waverly, IA
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Joined: Feb 2010
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Backyard Mechanic
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Backyard Mechanic
Joined: Feb 2010
Posts: 323 |
Richard
I had to install new drums in my 48 Fleetmaster.
I drilled the rivets out and used good quality high tension bolts to replace them.I have done some 650 miles so far without any problems.
It had been mentioned lately that the hubs were fitted with rivets only to gain time with assembly in the factory.
Jianis
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