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Arc the rear shoes?
Mike MacLean
On Sunday, September 29, 2019, 1:40:05 PM PDT, Michael Oritt <michael.o=
ritt@gmail.com> wrote: =20
=20
=20
Whether due to aging of the driver or brake materials--or both--it appears =
that lately I must exert a lot of pedal pressure to get what seems like les=
s braking response. I know this is a very subjective statement and I have n=
o way of quantifying the braking but I have been driving my car for 20 year=
s and am sure that it just isn't stopping the way it used to.
Here is some background information:
1. I just, as in last week, replaced the brake hoses front and rear with a =
set of braided stainless hoses obtained from Old Phartz. I used him as oppo=
sed to Moss or other suppliers because I have BT7 front discs and stock 100=
rears which take a different rear hose than the 6-cylinder cars, and he wa=
s willing to "Mix and Match" the later front hoses and original rear hose, =
whereas Moss only wanted to sell me two kits. It took a bit longer to obtai=
n them than originally promised but what came in was great--actually about =
3/4" more in length which made installation a bit easier.
2. I also just--last week--rebuilt the master cylinder and installed new re=
ar wheel cylinders, and in the process flushed the hydraulic system entirel=
y and refilled with Wilwood 570 high-temp Dot 4 fluid. The system is positi=
vely bled and the pedal is nice and hard and where it should be with just a=
bit of free movement.
3. The front pads and rear shoes have been replaced within the last twelve =
months and probably have less than 3K miles on them. Nevertheless the rotor=
s seem to have a "glazed" appearance and the rear shoes have definitely bee=
n exposed to some slight leakage of diff oil, though not enough to saturate=
them.
Shoes and drums were cleaned following cylinder replacement.
4. I have a restrictor valve on the line to the rear brakes which, when tur=
ned down all the way, reduces fluid flow to approximately 60% of wide open.=
I have the valve turned all the way to reduced-flow in order to maximize f=
luid delivery/pressure to the front brakes as they do most of the work. The=
re is a definite falling off in brake performance as the valve is opened.
5. The rear brakes are properly adjusted and the parking brake is functiona=
l when engaged.
6. I can, with extreme pedal pressure, lock the front brakes with little or=
no side-to-side pulling.
7. Tires are Michelin XAS with plenty of tread and 30 psi all around.
I just lost my lease to a warehouse space I have been renting and must clea=
r out in a few weeks, so for that and other reasons I am not able to undert=
ake any big project such as putting in a servo or replacing the front rotor=
s with some racing stuff or rear brakes with discs, etc. However I am able =
to put on new front pads and rear shoes, and perhaps have the front rotors =
turned if need be. So I guess what I am looking for is some recommendations=
on what materials I might use to give good braking with reasonable pedal e=
ffort. I do my racing on a track in my other cars and am=C2=A0not=C2=A0look=
ing to equip the Healey with rock hard pads/shoes. I merely want to improve=
the car's braking so I do not have to stand on the pedal to get the car to=
stop.
Best--Michael Oritt
1954 BN1 LeMans
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
r.mike@att.net
=20
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<html><head></head><body><div class=3D"ydp5042c8a6yahoo-style-wrap" style=
=3D"font-family: times new roman, new york, times, serif; font-size: 16px;"=
><div></div>
<div dir=3D"ltr" data-setdir=3D"false">Arc the rear shoes?</div><di=
v dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=
=3D"false">Mike MacLean<br></div><div><br></div>
=20
</div><div id=3D"yahoo_quoted_0219386453" class=3D"yahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div>
On Sunday, September 29, 2019, 1:40:05 PM PDT, Michael =
Oritt <michael.oritt@gmail.com> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id=3D"yiv9691014099"><div dir=3D"ltr"><div class=
=3D"yiv9691014099gmail_default" style=3D"color:#3333ff;"><h2 class=3D"yiv96=
91014099gmail-title yiv9691014099gmail-icon" style=3D"margin:0px 0px 5px;pa=
dding:10px 10px 5px 0px;font-stretch:normal;font-size:14px;line-height:norm=
al;font-family:Tahoma, Calibri, Verdana, Geneva, sans-serif;border-bottom:1=
px solid rgb(200,200,200);color:rgb(51,51,51);background-color:rgb(250,250,=
250);"><br></h2><div class=3D"yiv9691014099gmail-content" style=3D"margin:0=
px;padding:0px;color:rgb(51,51,51);font-family:Verdana, Arial, Tahoma, Cali=
bri, Geneva, sans-serif;font-size:13px;background-color:rgb(250,250,250);">=
<div id=3D"yiv9691014099gmail-post_message_1121875" style=3D"margin:0px;pad=
ding:0px;"><blockquote class=3D"yiv9691014099gmail-postcontent yiv969101409=
9gmail-restore" style=3D"margin:0px;padding:0px;overflow:hidden;">Whether d=
ue to aging of the driver or brake materials--or both--it appears that late=
ly I must exert a lot of pedal pressure to get what seems like less braking=
response. I know this is a very subjective statement and I have no way of =
quantifying the braking but I have been driving my car for 20 years and am =
sure that it just isn't stopping the way it used to.<br><br>Here is some ba=
ckground information:<br><br>1. I just, as in last week, replaced the brake=
hoses front and rear with a set of braided stainless hoses obtained from O=
ld Phartz. I used him as opposed to Moss or other suppliers because I have =
BT7 front discs and stock 100 rears which take a different rear hose than t=
he 6-cylinder cars, and he was willing to "Mix and Match" the later front h=
oses and original rear hose, whereas Moss only wanted to sell me two kits. =
It took a bit longer to obtain them than originally promised but what came =
in was great--actually about 3/4" more in length which made installation a =
bit easier.<br><br>2. I also just--last week--rebuilt the master cylinder a=
nd installed new rear wheel cylinders, and in the process flushed the hydra=
ulic system entirely and refilled with Wilwood 570 high-temp Dot 4 fluid. T=
he system is positively bled and the pedal is nice and hard and where it sh=
ould be with just a bit of free movement.<br><br>3. The front pads and rear=
shoes have been replaced within the last twelve months and probably have l=
ess than 3K miles on them. Nevertheless the rotors seem to have a "glazed" =
appearance and the rear shoes have definitely been exposed to some slight l=
eakage of diff oil, though not enough to saturate them.<br>Shoes and drums =
were cleaned following cylinder replacement.<br><br>4. I have a restrictor =
valve on the line to the rear brakes which, when turned down all the way, r=
educes fluid flow to approximately 60% of wide open. I have the valve turne=
d all the way to reduced-flow in order to maximize fluid delivery/pressure =
to the front brakes as they do most of the work. There is a definite fallin=
g off in brake performance as the valve is opened.<br><br>5. The rear brake=
s are properly adjusted and the parking brake is functional when engaged.<b=
r><br>6. I can, with extreme pedal pressure, lock the front brakes with lit=
tle or no side-to-side pulling.<br><br>7. Tires are Michelin XAS with plent=
y of tread and 30 psi all around.<br><br>I just lost my lease to a warehous=
e space I have been renting and must clear out in a few weeks, so for that =
and other reasons I am not able to undertake any big project such as puttin=
g in a servo or replacing the front rotors with some racing stuff or rear b=
rakes with discs, etc. However I am able to put on new front pads and rear =
shoes, and perhaps have the front rotors turned if need be. So I guess what=
I am looking for is some recommendations on what materials I might use to =
give good braking with reasonable pedal effort. I do my racing on a track i=
n my other cars and am <b><i>not </i></b>looking to equip the Hea=
ley with rock hard pads/shoes. I merely want to improve the car's braking s=
o I do not have to stand on the pedal to get the car to stop.<br><br><br>Be=
st--Michael Oritt<br>1954 BN1 LeMans</blockquote></div></div></div></div></=
div>_______________________________________________<br>Support Team.Net <a =
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