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  #1 (permalink)  
Old 02-27-2002, 01:17 PM
Dave Derer
 
Posts: n/a
Brake question


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




        
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  #2 (permalink)  
Old 02-27-2002, 02:09 PM
David Chapman
 
Posts: n/a
Re: Brake question


>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




        
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  #3 (permalink)  
Old 02-28-2002, 11:13 AM
amphi_sc
 
Posts: n/a
Re: Brake question


--- In amphicar-lovers@y..., "David Chapman"
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




        
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  #4 (permalink)  
Old 02-28-2002, 05:30 PM
David Chapman
 
Posts: n/a
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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  #5 (permalink)  
Old 12-28-2007, 10:48 AM
rdboggie@comcast.net
 
Posts: n/a
Brake Question


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




        
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  #6 (permalink)  
Old 12-28-2007, 11:05 AM
WB6WSN
 
Posts: n/a
RE: Brake Question




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



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

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.


Ed Price
El Cajon, CA USA
67 Rust Guppy




        
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  #7 (permalink)  
Old 12-28-2007, 11:15 AM
David Chapman
 
Posts: n/a
Re: Brake Question


> 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




        
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  #8 (permalink)  
Old 12-28-2007, 11:57 AM
rlgreen_55
 
Posts: n/a
Re: Brake Question


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"
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
>




        
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  #9 (permalink)  
Old 12-28-2007, 01:04 PM
Ken Chambers
 
Posts: n/a
Re: Brake Question


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
>
>
>




        
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  #10 (permalink)  
Old 12-29-2007, 01:47 PM
tazman3115@aol.com
 
Posts: n/a
Re: Brake Question



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




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