I'm afraid that you may have run into a problem that I've heard about but not seen myself.

When I rebuilt my SIII Lightweight two of the drums were nearing their wear limits, and the other two weren't particularly round either. No big deal, buy some more. Now that's where it got interesting. Two of the suppliers I use (and trust) gave me the same story. Whoever it is/are that make new drums is making such a bad job of machining them that they won't stock them any longer - they were getting so many back. You'd think it wouldn't be a hard job, but these people just don't seem to understand how it should be done.

Long and short I skimmed my worn ones, yes they're fractionally over the limit, but they work beautifully.

Take yours to someone who's good with a big lathe and have him check them and correct if necessary.
 
Last edited:
steve2286w said:
Have you compared new shoes with old, have you got problems on all 4 drums, chamfering ends of shoes can help, do shoes match the radius of the drums you need to take them off and sit them inside drum to check this
Perhaps post a few pics without drums on
Click to expand...
Th
steve2286w said:
Have you compared new shoes with old, have you got problems on all 4 drums, chamfering ends of shoes can help, do shoes match the radius of the drums you need to take them off and sit them inside drum to check this
Perhaps post a few pics without drums on
Click to expand...
The shoes were contaminated with oil and thrown away years ago. Problem is on all 4 drums, 2 are new 2 are original. They do seem the same radius drums and shoes.
 
boguing said:
I'm afraid that you may have run into a problem that I've heard about but not seen myself.

When I rebuilt my SIII Lightweight two of the drums were nearing their wear limits, and the other two weren't particularly round either. No big deal, buy some more. Now that's where it got interesting. Two of the suppliers I use (and trust) gave me the same story. Whoever it is/are that make new drums is making such a bad job of machining them that they won't stock them any longer - they were getting so many back. You'd think it wouldn't be a hard job, but these people just don't seem to understand how it should be done.

Long and short I skimmed my worn ones, yes they're fractionally over the limit, but they work beautifully.

Take yours to someone who's good with a big lathe and have him check them and correct if necessary.
Click to expand...
Colthebrummie said:
Have you tried not fitting the drum retaining screws, they dont do much anyway.

Col
Click to expand...
It does it with the screws in or out as soon as you tighten the wheel nuts.
 
Other suggestions then (but honestly I'd get them all measured anyway) is to ask whether the mating surfaces of both drum and hub are clean bare metal? Even paint can throw them off alignment.

If there's nothing wrong with the drums or their seating (and hence alignment) then the fault must be in the shoes. I'll say I'm surprised that with the adjusters right off you have a problem, so I do question the size of the shoes. But... if the shoes are right then it's the way they're sitting that needs work. Have you tried stamping on the pedal when the drum screws are loose? That helps the shoes both get 'upright' if they're hanging off outwards. and wobble around on the cylinder seats to get the surfaces concentric with the drum. It can take quite a few stamps...
 
Take a pic of your brake shoe set up and upload...something is not right with your set up...just done a 59 S2...
IMG_20220419_143403.jpg
 
Shippers said:
Take a pic of your brake shoe set up and upload...something is not right with your set up...just done a 59 S2...View attachment 265059
Click to expand...
Thanks for the photo. It's difficult getting a photo with the hub in position as it covers everything up. But looking at your set up It is exactly the same as mine and as shown in the manual and the several videos on you tube, Spring and adjuster bottom retaining plates etc, the same. I think the problem is the shoes. Will have another look today.
 
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