<div dir="ltr"><div>Yes thank you; that sounds like a good explanation. As you say it is a bear of a job and just working up some stamina to tackle it again !</div><div>rg<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 29, 2021 at 10:38 PM Bob Spidell <<a href="mailto:bspidell@comcast.net">bspidell@comcast.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">re: "I note that the slave is tight on the back plate. How tight is <br>
normal floating ?"<br>
<br>
I just spent several hours on my back on a greasy floor working on my <br>
BN2's rear drums. I didn't see any text in the shop manual explaining <br>
installation; most I found was a pic in the Moss catalog showing that <br>
the curved spring, with the 'hooks,' should be installed above the <br>
cylinder (between the cylinder and the handbrake lever). First, I <br>
installed the flat plate against the backing plate with the spring plate <br>
on top of it. Not only would the cylinder not move freely--which enables <br>
the self-energizing aspect of the brakes--but the rubber dust boot had <br>
nothing to hold it in place. I then reversed the installation; i.e. the <br>
spring plate was still above the cylinder, but under the flat plate <br>
(hooks up). This way the cylinder would slide smoothly and easily, which <br>
makes sense because there is less contact area, but the rubber boot, <br>
which is beveled on the inner part fit naturally under the flat plate <br>
and would stay in place when vigorously sliding the cylinder <br>
back-and-forth. Contact surfaces were lightly greased.<br>
<br>
Short answer: the cylinder should slide smoothly and easily; otherwise <br>
the self-energizing feature could be defeated, and the cylinder could be <br>
stuck in the expanded position, which could explain your non-retracting <br>
problem.<br>
<br>
Bob<br>
<br>
<br>
On 3/29/2021 3:07 PM, Roger Grace via Healeys wrote:<br>
> BJ8 ph2.<br>
> I am Struggling to get consistent results for rear brake shoe adjustment.<br>
> All part of a project to get handbrake working properly - currently it <br>
> is almost vertical.<br>
> Background:<br>
> New shoes, slaves and springs etc with less than 4k mi. Almost no sign <br>
> of any wear yet.<br>
> Handbrake lever clevis pins removed.<br>
> Steady post adjusted so the peg just touches when brakes are adjusted <br>
> tight.<br>
> Then the adjustment set so you can just hear/feel slight brake drag.<br>
> All OK so far.<br>
><br>
> Here is the problem:<br>
> When the handbrake lever is pushed with screwdriver or my hand it <br>
> moves with initial free play then clamps the shoes as it should. <br>
> However when released brakes do not fully retract, and shoes bind and <br>
> not at the same setting that started off with.<br>
> Same story with using the hydraulics; seems to hang up, in not quite <br>
> the off position. Both wheels are the same.<br>
> Shoes can be "reset" to original setting by rattling the adjuster <br>
> back and forth in the freeplay zone.<br>
> All looks fine when drum is off and you can see the shoe operation.<br>
><br>
> My thoughts :<br>
> I observe that the new springs actually touch the inside of the shoes ?<br>
> Maybe some grease there ? Is this interference normal ?<br>
> Is it possible to incorrectly assemble the shoes/springs ?<br>
> See photo of RR.<br>
> I note that the slave is tight on the back plate. How tight is normal <br>
> floating ?<br>
> Maybe I assembled the slave cylinder clips incorrectly ?<br>
><br>
> All suggestions appreciated<br>
> rg<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
<br>
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