Brake Question

[Dave Derer]

What are the thoughts on sealing rubber dust boots to wheel cylinders
using silicone adhesive? Later Dave the Once Again Frozen Wave

 

[David Chapman]

>What are the thoughts on sealing rubber dust boots to wheel cylinders
>using silicone adhesive? Later Dave the Once Again Frozen Wave

What works well for me is the special rubber grease, you fill the area under the
dust cover with it and it keeps water out, sort of sticks the rubber boot to the
cylinder, but also lubricates. It does of course have to be the grease suitable
for use on rubber - and normally sold in small red tubes - not ordinary grease.
I also use silicone brake fluid and find that it out-performs the conventional
paint removing stuff in every way.

David Chapman

 

[amphi_sc]

--- In amphicar-lovers@y..., "David Chapman" <david@m...>
wrote:
>
> What works well for me is the special rubber grease, you
fill the area under the
> dust cover with it and it keeps water out, sort of sticks
the rubber boot to the
> cylinder, but also lubricates.

Hey Dave, How about a source, or brand name or other such info
to locate this grease? The guy behind the parts counter will
think you're wierd when you ask for grease for your brakes!

Al Heath

 

[David Chapman]

Re: Re: Brake question

Al,

It's Girling/Lucas product, looks and feels like ordinary grease but is a dark
red colour. Looking at a tube in front of me the part number is PFG102 and the
tube is about 3 inches tall. It's not too difficult to find here but I've never
seen it for sale in the US, however, using the power of the mighty Google search
engine, I see there is a specialist in the States that lists it for $3.95 a
tube, which would be about right. Their website is here:

http://www.hdrogers.com/Rolls.html

David Chapman


> What works well for me is the special rubber grease, you fill the area under
the
> dust cover with it and it keeps water out, sort of sticks the rubber boot to
the
> cylinder, but also lubricates.

Hey Dave, How about a source, or brand name or other such info
to locate this grease? The guy behind the parts counter will
think you're wierd when you ask for grease for your brakes!

Al Heath



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[rdboggie@comcast.net]

<table>
Had my brakes relined. Three wheels went back together with no problem. Could not get the drum over the shoes on the fourth wheel (left rear). Everything seated properly; brake adjusters turned all the way in. My thinking is to grind down a bit of the heel of the shoe to bring it in some more. I shouldstill have good spring tension. Any other options?

thanks,
Randy
Blue '67
Gaithersburg, MD

 

[WB6WSN]

<table>
<blockquote style="MARGIN-RIGHT: 0px">
<div class="OutlookMessageHeader" lang="en-us" dir="ltr" align="left"><font face="Tahoma" size="2">From: amphicar-lovers@yahoogroups.com [mailto:amphicar-lovers@yahoogroups.com] On Behalf Of rdboggie@comcast.net
Sent: Friday, December 28, 2007 7:48 AM
To: amphicar-lovers@yahoogroups.com
Subject: [amphicar-lovers] Brake Question
</font>


Had my brakes relined. Three wheels went back together with no problem. Could not get the drum over the shoes on the fourth wheel (left rear). Everything seated properly; brake adjusters turned all the way in. My thinking is to grind down a bit of the heel of the shoe to bring it in some more. I shouldstill have good spring tension. Any other options?

thanks,
Randy
Blue '67
Gaithersburg, MD
<font color="#800000" size="4"></font></blockquote>
<span class="390300216-28122007"><font color="#0000ff" size="4">Try fitting the drum to one of the other wheels before grinding. Tolerances just may have stacked up against you somehow, so it might fit at a different wheel.</font></span>
<span class="390300216-28122007"><font color="#0000ff" size="4"></font></span>
<span class="390300216-28122007">
<div align="left"><font face="Century Schoolbook" color="#0000ff" size="4">Ed Price</font>
<div align="left"><font face="Century Schoolbook" color="#0000ff" size="4">El Cajon, CA USA</font>
<div align="left"><font face="Century Schoolbook" color="#0000ff" size="4">67 Rust Guppy</font>
<div align="left"><font color="#0000ff" size="4"></font></span>

 

[David Chapman]

> My thinking is to grind down a bit of the heel of the shoe to bring it in
> some more. I should still have good spring tension. Any other options?

Don't mess with the shoes, will cause no end of other problems.

There must be a reason, swop the drum with the other side and see what
happens. Check everything seated correctly. Measure lining thickness. Is
parking brake part locked on. Are rear shoes fitted the right way. Is the
short shoe of the pair fitted correctly as in manual?

David C

 

[rlgreen_55]

Make sure the parking brake is completely disengaged. I had this same
problem with mine (same wheel) and the parking brake cable was
slightly expanding things.

RG


--- In amphicar-lovers@yahoogroups.com, "David Chapman" <david@...>
wrote:
>
>
> > My thinking is to grind down a bit of the heel of the shoe to
bring it in
> > some more. I should still have good spring tension. Any other
options?
>
> Don't mess with the shoes, will cause no end of other problems.
>
> There must be a reason, swop the drum with the other side and see
what
> happens. Check everything seated correctly. Measure lining
thickness. Is
> parking brake part locked on. Are rear shoes fitted the right way.
Is the
> short shoe of the pair fitted correctly as in manual?
>
> David C
>

 

[Ken Chambers]

Brake pistons not retracting into the cylinder enough? The new
thicker lining will require the pistons to seat in further. If the
wheel cylinders haven't been honed and rebuilt there could be rust or
a buildup of gunk preventing the retraction. That may then lead to
leaks onto your new linings.

BTW, some time ago there was discussion of a waterproof grease to use
on the outside of the pistons under the rubber dust caps to keep
water out. Our friend David across the pond suggested Castrol Red
Brake Grease but it doesn't seem to be sold in the states. Permatex
Ultra Disc Brake Caliper Lube is a comparable product available over
here.

Happy New Year to all,
---Ken Chambers, CA
'64 Red


On Dec 28, 2007, at 7:48 AM, rdboggie@comcast.net wrote:

>
> Had my brakes relined. Three wheels went back together with no
> problem. Could not get the drum over the shoes on the fourth wheel
> (left rear). Everything seated properly; brake adjusters turned all
> the way in. My thinking is to grind down a bit of the heel of the
> shoe to bring it in some more. I should still have good spring
> tension. Any other options?
>
> thanks,
> Randy
> Blue '67
> Gaithersburg, MD
>
>
>

 

[tazman3115@aol.com]

<table id="role_body" style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial" bottomMargin="7" leftMargin="7" topMargin="7" rightMargin="7"><font id="role_document" face="Arial" color="#000000" size="2">
I had a similar problem getting the rear drums on after a reline. If I recall the emergency brake cables had been the problem. They had broken and someone had clamped them together under the floor and were now too short to allow the shoes to seat properly. A readjustment of the braket that holds the cables at the front of the floor pan allowed the cables to get a little longer and allow the shoes to fit.
In my opinion either your pistons are not going all the way into the cylinders as stated by someone else or the brake cables are the problem. Good luck, bad luck Chuck Chuck</font>


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