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Re: KPack's 1954 Panama
Home away from home
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kevinpackard
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Looks like the drums for the Panama with 12" brakes are specific to only that model. My chances of finding replacements are slim. Can warped drums still be used?

-Kevin

Posted on: 4/12 11:29
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Re: KPack's 1954 Panama
Home away from home
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DavidPackard
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Kevin can you describe what ‘warped’ means? Perhaps the NAPA technician that observed the drum/hub on the lathe could be helpful. Now that you’re all ‘buttoned-up’ with respect to the bearings, you could mount the drum/hub, and spin the drum to assess the radial/axial ‘run-out’ if it exists.

I think for at least in the short term you will be reinstalling what you have and get the car back home. The question then becomes which set of shoes should be installed while you hunt for a replacement drum/hub. Also just because you know that at some point in time that side will be disassembled do not skimp on the guidance pertaining to proper torqueing of the axle nut.

I can’t believe there isn’t a new drum part number out there that after some machining could be riveted/bolted to the Packard hub.

dp

Posted on: 4/12 12:22
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Re: KPack
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Joe Santana
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If you need brake parts, call Jeff Adkins at Moose Motors in Pengrove CA (NorCal) 707 792-9985
packardguy54@sbcglobal.net

Attach file:



jpg  IMG_3070Mooseweb.jpg (693.31 KB)
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jpg  IMG_3068Mooseweb.jpg (661.81 KB)
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Posted on: 4/12 13:09
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Re: KPack
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kevinpackard
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I'm not really sure what exactly they meant by "warped" on the drum. The guy that attempted to turn it wasn't there when I picked them up today. Talking to a few guys, and doing some reading on the interwebs, I've decided that I'm just going to put it back on and see what it does. If it's not causing a problem then I won't worry about it. If it does cause a problem then I figure something out.

Not a lot of progress today. At least not as much as I wanted. I worked on getting the rear brakes back together. That involved me first thinning out the brake shoe web where the adjuster sits. Didn't take too long. I painted over the metal to protect it after I ground it off.

Both sides were then reassembled using my blasted and repainted parts. It all looks so nice, but it'll hopefully never be seen again. New hold down springs. I used the old pins since the new ones were way too long. Everything else was reused.

The front-back brake line was finished and connected. I joined two lengths together on the inside of the rail. Bending them was not hard. The nice thing about this Napa line is that it can easily be bent using your hands. But each length comes with a short and long fitting. The long ones freak me out because it looks like they aren't tightened enough.

Also filled the rear diff with new 80W-90 gear oil.

I cleaned up business side of the warped drum with some find sandpaper, then cleaned both with brake cleaner.

And that's where things came to a grinding halt. The drums will not fit over the new shoes, even with the adjusters turned all the way in. It looks like the pads are too thick....too much meat on them. Now what?

-Kevin

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jpg  Thinning the brake shoe web.jpg (267.74 KB)
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jpg  Driver's rear brakes assembled.jpg (288.88 KB)
1059_607525bdb3d16.jpg 975X1300 px

jpg  Passenger rear brake assembled.jpg (327.56 KB)
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jpg  Rear brake line.jpg (330.48 KB)
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jpg  Rear brake line junction.jpg (313.03 KB)
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jpg  One drum turned.jpg (342.60 KB)
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jpg  Unturned drum.jpg (305.28 KB)
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Posted on: 4/12 23:03
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Re: KPack's 1954 Panama
Home away from home
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PackardDon
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Dumb question but is the parking brake cable disconnected under the car?

Posted on: 4/13 0:59
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Re: KPack's 1954 Panama
Home away from home
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Joe Santana
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Not dumb, Don. That’s something I’d do.

Posted on: 4/13 4:09
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Re: KPack's 1954 Panama
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Ross
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Make certain that the shoes are resting on the anchor pin. It does appear that your e-brake arms are pulled.

Posted on: 4/13 5:58
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Re: KPack
Quite a regular
Quite a regular

Jim/KB1MCV
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You've probably seen this excellent video that Ross produced...
But just in case:https://www.youtube.com/watch?v=T1Zc3aW18Z4

You may have to have the linings cut down by a shop with tooling to fit the shoes to the drum. Its a good idea on any brake job to arc the shoes to fit the drums.
Good luck.

Posted on: 4/13 6:50
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Re: KPack's 1954 Panama
Home away from home
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kevinpackard
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Well shoot, I didn't disconnect the parking brake cable under the car. The parking brake is off, and I assumed that would be enough. But maybe not.

It does appear that all the shoes are in close contact with the anchor pin. But maybe the parking brake is pushing them ever so slightly out?

If everything is seated correctly then it looks like I get to disassemble it all (again) and find somewhere to have the shoes reduced.

-Kevin

Posted on: 4/13 8:58
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Re: KPack's 1954 Panama
Home away from home
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kevinpackard
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With the rears (hopefully) getting buttoned up soon, I'm turning my attention back to the front. The front brakes and drums are good to go, and I was considering leaving the lines alone in the front, since they were replaced whenever the dual master cylinder was installed.

However, when I look at the set up in the front, I hate it. There are lines everywhere and it is ugly. It looks like there is some sort of proportioning valve installed. I can't tell if the rear line is on a separate circuit than the fronts.....i.e. does one cylinder actually go to the rear and one to the front.

School me on this....if I have wheel cylinders with the same size bore as original, and am keeping the original drums, I don't need a proportioning valve, right? I should have one cylinder going straight to the rear, and one going to a junction block and split between the front, right?

I'm not going to go back to the BTV just yet.....going to roll with what I have for now. But I want to be sure I have it set up right for safety.

-Kevin

Posted on: 4/13 9:22
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