General Category => Other Things Simplex => Topic started by: .38 Spcl on November 10, 2013, 07:02:06 AM
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Does anyone know of where I can get my brake shoes relined? It is for the English hub for a 1938.
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Check with a decent brake shop . They should be able to get the job done .
Or , I think Wayne sells linings .
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Check with a decent brake shop . They should be able to get the job done .
Or , I think Wayne sells linings .
Thanks! I didn't think anyone did that anymore!
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Are they the same size as the later Simplex brakes? If you look in the "wheels & tires" section, in the thread titled "Brakes", I've got some step by step photos of re-lining brake shoes. Wayne sell new linings, but I dont know if they fit the early models too.
Mike Sal
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Post some pictures! These early bikes are very rare and we would like to see what the early brake looks like.
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Here are the pics Mike sent me of the brake parts.
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Those parts are well rusted . You might consider dropping them into a vat of Oxalic acid .
Here's an excerpt from my build thread :
I rec'd my order of wood bleach ( Oxalic Acid ) and thought it best to test it before I subjected my fuel tank for rust removal .
I mixed a rather mild solution for the test . Here are some before and after pics :
Before :
(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1553.jpg)
After :
(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1559.jpg)
The parts looked almost this good after just a couple of hours bath , but I left them in over night to see if the deep reaches would be 'taken care of ' . The pulley was totally rusted .
I pulled the parts and rinsed them in a bath of hot water , then let them dry . The Oxalic acid seems to eat rust and leave a protective coating . I wiped some of that coating off the rear brake plate . Also note that the acid does not effect painted parts ( a big plus ) .
This was an experiment for me . My Simplex had a bit of rust forming in the gas tank . Not too bad considering the bike is 55 years old . I'd read that different acids worked for removing rust .
I used muriatic acid to clean my XT350 tank with decent results . That tank did flash rust and I retreated it and then neutralized the acid ASAP . It still formed a small amount of flash rust . I'm running it with an in line paper fuel filter and haven't had any problems .
The Simplex tank is a bit more rare and harder to find . I was reluctant to use muriatic acid in it for those reasons . Through research , I read about oxalic acid , sold as wood bleach . Oxalic acid is a lot safer to work with , but still requires due caution ( READ THE LABEL ) . It's not nearly as toxic as muriatic acid . It does NOT harm painted surfaces . It just eats rust and leaves a protective coating on the steel after being thoroughly rinsed with water .
I used a diluted mixture from what is suggested , which is 12 ounces to 1 gallon of water . I used 12 ounces to 2 gallons of water . Being as the solution was weaker , I left the mixture in the tank twice as long and the results are shown below .
This is what I used :
(http://ecx.images-amazon.com/images/I/31rJANAvPKL.jpg)
Here's the rusted tank :
(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1556.jpg)
And, here's the tank after being filled with oxalic acid for a couple of days :
(http://i200.photobucket.com/albums/aa28/pdcomm/Simplex/HPIM1572.jpg)
This stuff really does work great . I'll use it from now on when treating rust .
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Is this something I would pick up at Home Depot? As rusted as the parts are they still turn free!
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Wood Bleach ( Oxalic Acid ) ?
Yes , any decent hardware or home improvement store should carry it , or at least be able to get it for you . It's also available on Ebay :
http://www.ebay.com/sch/i.html?_trksid=p2047675.m570.l1313.TR2.TRC1.A0&_nkw=Oxalic+Acid+&_sacat=0&_from=R40
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Hard to see from the photo, but your existing lining may still be serviceable. If you do replace them, be mindfull that they probably contain asbestos.
Mike Sal
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Thank You! I'm going to pull them apart and clean them up. To see what I have to work with.