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Bob etalMechanically 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.=C2=A0 The locking plat=
e, being flat, minimizes the tilt=C2=A0 or rocking of the wheel cylinder. G=
ranted when everything is in place the bulge is minimal as is the=C2=A0move=
ment of the assembly. I guess compared to the BN1 set up, this is a modern =
marvel!
P
-----Original Message-----
From: Bob Spidell <bspidell@comcast.net>
To: Healeys <healeys@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=20
the 'proper' orientation of the two U-shaped plates that retain the=20
cylinders. One of the U-shaped plates is flat with a couple notches at=20
the 'top' of the U--if it was oriented like the letter--and one has a=20
couple 'tangs' on top that hook into the notches to retain the two=20
pieces (which are designed to slide against the backplate to enable=20
'self-energizing' or servo effect). The piece with the tangs is usually=20
slightly bowed and springy--at least, mine are and I don't think I've=20
ever bought new--apparently to spring load the two pieces, which=20
interlock, but it could have been bent during re/assembly.
My question is, does the notched, flat plate go against the brake=20
backplate, or does the curved piece with the tangs go against the=20
backplate? It may be that they can only be assembled in place in one=20
way, and it seems they would function OK either way, but I've always=20
installed them with the tanged, curved piece against the backplate, as=20
it seems the cylinder would slide easier that way (I also put a little=20
grease on the areas--cylinder and backplate--that slide or are slid=20
against).
TIA,
Bob
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e
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<div style="color:black;font: 10pt Arial, Helvetica, sans-serif;">Bob etal
<div>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 a<span style="font-size:
13.3333px;">s is the</span> movement of the assembly. I guess compared to
the BN1 set up, this is a modern marvel!<br>
<br>
P<br>
<br>
<div
style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original
Message-----<br>
From: Bob Spidell <bspidell@comcast.net><br>
To: Healeys <healeys@autox.team.net><br>
Sent: Mon, Jan 18, 2021 10:19 am<br>
Subject: [Healeys] Rear Wheel Cylinder Retainers<br>
<br>
<div dir="ltr">Listers,<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I've replaced a few rear wheel cylinders and have always
wondered about <br>
</div>
<div dir="ltr">the 'proper' orientation of the two U-shaped plates that retain
the <br>
</div>
<div dir="ltr">cylinders. One of the U-shaped plates is flat with a couple
notches at <br>
</div>
<div dir="ltr">the 'top' of the U--if it was oriented like the letter--and one
has a <br>
</div>
<div dir="ltr">couple 'tangs' on top that hook into the notches to retain the
two <br>
</div>
<div dir="ltr">pieces (which are designed to slide against the backplate to
enable <br>
</div>
<div dir="ltr">'self-energizing' or servo effect). The piece with the tangs is
usually <br>
</div>
<div dir="ltr">slightly bowed and springy--at least, mine are and I don't think
I've <br>
</div>
<div dir="ltr">ever bought new--apparently to spring load the two pieces, which
<br>
</div>
<div dir="ltr">interlock, but it could have been bent during re/assembly.<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">My question is, does the notched, flat plate go against the
brake <br>
</div>
<div dir="ltr">backplate, or does the curved piece with the tangs go against
the <br>
</div>
<div dir="ltr">backplate? It may be that they can only be assembled in place in
one <br>
</div>
<div dir="ltr">way, and it seems they would function OK either way, but I've
always <br>
</div>
<div dir="ltr">installed them with the tanged, curved piece against the
backplate, as <br>
</div>
<div dir="ltr">it seems the cylinder would slide easier that way (I also put a
little <br>
</div>
<div dir="ltr">grease on the areas--cylinder and backplate--that slide or are
slid <br>
</div>
<div dir="ltr">against).<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">TIA,<br>
</div>
<div dir="ltr">Bob<br>
</div>
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