Date: Sat, 7 May 2016 17:44:42 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Rear Brakes: E-brake lever lube,
E-brake spring function (purpose)
In-Reply-To: <CAB2RwfjeqXcXGeOWJeLmm0tFZSSJ+1kaeXRXi1XXw=ueCBSAxQ@mail.gmail.com>
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The point with the shoes is not the arch matching the curve of the drum. They are all the same tat way. The problem is positon of the shoes after mounting. Many are too short on the bottom and the problem is that the shoes only contact the drum near the top. This increases wear at the top and reduces braking effect as the friction area is greatly reduced. It can also over heat the lining at the wear area causing it to glaze, crack, and even separate from the shoe.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Neil N
Sent: Saturday, May 07, 2016 2:50 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Rear Brakes: E-brake lever lube, E-brake spring function (purpose)
Thanks for that Alistair. I'll check these GW shoes against a new drum.
More out curiosity than anything. I found the Samba forum 1000 page long debate on shimming the lower anchors and shoe radius or arcing informative but admittedly, I still have trouble *fully* understanding how one would determine if that's required. Do folks mark the new shoes, install, test wear pattern then determine if shims are needed? I'd think one could measure for that. Another topic I'm sure.
On the GW shoes, I noted that the adjuster lever *seems* a little thin, and that part does see some "action", as I'm sure you know. There's a spring pulling down on it and the adjuster bar butts up against it. i.e. On the shoes currently installed, I noted a minor (normal I'm sure) mark at the adjuster bar where this lever sits.
That adjuster lever failure might just be a freak thing in your case but it certainly speaks to keeping an eye on things eh?
I'll have a close look at my new GW shoes before installing them.
On the currently installed shoes, it's interesting to me that one e-brake lever pivot point wore so much (or was loose when new)
Neil.
On 5/7/16, Alistair Bel <albell@shaw.ca> wrote:
> Neil,
>
> I just remembered something about those shoes I was so pleased with
> the radius. Just before xmas last year, when I had to fix my starter,
> I took the opportunity of the van on a lift to look at the rear
> brakes. I found the adjusting tab thing that is riveted to the shoe
> was broken on one. The broken bit was still in the drum. Sure seemed
> like "thinner than what should be used" steel. I tig welded it back
> together. I'll be looking at it again soon.
>
> Alistair
>
>
>
>> On May 6, 2016, at 9:25 PM, Neil N <musomuso@gmail.com> wrote:
>>
>> Alistair: oddly enough, the shoes that are in there look very much
>> the same as the GoWesty shoes I have in hand. Like the adjuster
>> lever, e-brake lever, look identical.
>> I can't recall if these were Raybestos Premium shoes or came from my
>> local VW supplier.
>> Of note, the driver side e-brake lever at shoe was really loose.
--
Neil n
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