soft linings for a WLA

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harleyjohn45
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Bikes: 1942 WLA
1940 ULH
Location: Florida in winter, New Mexico in summer

soft linings for a WLA

#1

Post by harleyjohn45 » Thu Apr 19, 2018 2:51 am

My front brake is totally worthless, maybe softer brake linings. Does anyone have advice. Hope to redo the front brake this summer.



ozwick86
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Re: soft linings for a WLA

#2

Post by ozwick86 » Thu Apr 19, 2018 4:17 am

harleyjohn45,

Give Vintage Brake a call.

VINTAGE BRAKE
Michael "Mercury" Morse
15069 Lupine Lane
Sonora, CA 95370
209-533-4346
Fax: (209) 533-4346

info@vintagebrake.com

harleyjohn45
Posts: 10
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Bikes: 1942 WLA
1940 ULH
Location: Florida in winter, New Mexico in summer

Re: soft linings for a WLA

#3

Post by harleyjohn45 » Fri Apr 20, 2018 2:44 am

Thanks Mark, I will do that right away.

Mark44
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Re: soft linings for a WLA

#4

Post by Mark44 » Fri Apr 20, 2018 3:35 pm

Just changing the brake shoes won't accomplish a whole lot if the curve of the brake shoe doesn't match the inside curve of the drum. Have the brake shoes "arced" so that the entire surface of the brake shoe comes in contact with the inside of the drum. I haven't seen this done, but I believe it entails putting the shoes on a lathe, and removing friction material so that the lining curvature matches the drum curvature. I'm guessing that many brake shops still do this, since there are still a fair amount of cars and pickups that use drum brakes on the rear axle.

If you can't find someone to arc the brake shoes, a simple technique that BigIncher (RIP) described was to glue a strip of sandpaper to the inside of the brake drum, with grit side facing away from the drum surface, then working each brake shoe until the whole shoe surface is scuffed.

You'd also want to look at the linkage parts inside the drum, to make sure that both shoes are able to make contact with the drum surface, and also that the cable is adjusted with the right amount of slack.

RUBONE
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Re: soft linings for a WLA

#5

Post by RUBONE » Fri Apr 20, 2018 7:49 pm

Be sure to use the thickest linings available as arcing them removes material, and you want as much as possible in the drum so the brake arm is the closest to 90 degrees for the best mechanical advantage. If the drum is badly worn or scored it will also negatively affect the operation. I arc my shoes on a lathe to make them round (be careful of asbestos dust!). Also do not forget to bevel the leading edges of the shoes which helps prevent chatter and adds a bit towards even contact. And don't neglect to center them either. A good front brake isn't hard to achieve on a 45. I use old factory linings and my front brake will just about skid the tire.

dcmc
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Re: soft linings for a WLA

#6

Post by dcmc » Sat Apr 21, 2018 2:03 am

Think you just need to send your backing plate ,shoes, and drum to Vintage brake.

ozwick86
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Re: soft linings for a WLA

#7

Post by ozwick86 » Sat Apr 21, 2018 2:17 am

dcmc,

Yes, you are correct, just send all the parts.

RUBONE
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Re: soft linings for a WLA

#8

Post by RUBONE » Sat Apr 21, 2018 6:23 am

Think you just need to send your backing plate ,shoes, and drum to Vintage brake.
But that is tough on a bike like a WL/WLA with the drum part of the hub. The entire wheel needs to go..

liberator
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Re: soft linings for a WLA

#9

Post by liberator » Sat Apr 21, 2018 9:20 am

That's what I do; just take the wheels complete (including axles etc) to a local shop familiar with drumbrakes.
They'll renew your linings, don't just let them glue them but they need rivetting too!, and give them the lathe treatment..

People normally complain over the 'bad' brakes these old horses have..I show them mine can skid tires...it all depends on proper linings (not too soft) and good adjustments..!
Personally I prefer the original asbestos type, although shops normally install organic linings..

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