[Healeys] Rear Wheel Cylinder Retainers

[Bob Spidell]

That's what made the most sense to me, and how I've always installed 
them (my BN2 and BJ8 have the same rear brake setup). But "That's how 
we've always done it" ain't necessarily right.

On 1/18/2021 10:28 AM, healeyguy at aol.com wrote:
> Bob etal
> Mechanically it would make sense that the curve (bulge) part of the 
> spring plate is against the greased backing plate to minimize the 
> contact area thereby being a best case for sliding movement.  The 
> locking plate, being flat, minimizes the tilt  or rocking of the wheel 
> cylinder. Granted when everything is in place the bulge is minimal as 
> is the movement of the assembly. I guess compared to the BN1 set up, 
> this is a modern marvel!
>
> P
>
> -----Original Message-----
> From: Bob Spidell <bspidell at comcast.net>
> To: Healeys <healeys at autox.team.net>
> Sent: Mon, Jan 18, 2021 10:19 am
> Subject: [Healeys] Rear Wheel Cylinder Retainers
>
> Listers,
>
> I've replaced a few rear wheel cylinders and have always wondered about
> the 'proper' orientation of the two U-shaped plates that retain the
> cylinders. One of the U-shaped plates is flat with a couple notches at
> the 'top' of the U--if it was oriented like the letter--and one has a
> couple 'tangs' on top that hook into the notches to retain the two
> pieces (which are designed to slide against the backplate to enable
> 'self-energizing' or servo effect). The piece with the tangs is usually
> slightly bowed and springy--at least, mine are and I don't think I've
> ever bought new--apparently to spring load the two pieces, which
> interlock, but it could have been bent during re/assembly.
>
> My question is, does the notched, flat plate go against the brake
> backplate, or does the curved piece with the tangs go against the
> backplate? It may be that they can only be assembled in place in one
> way, and it seems they would function OK either way, but I've always
> installed them with the tanged, curved piece against the backplate, as
> it seems the cylinder would slide easier that way (I also put a little
> grease on the areas--cylinder and backplate--that slide or are slid
> against).
>
> TIA,
> Bob
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