| Master Cylinder Cover [message #238745] |
Tue, 04 February 2014 11:29  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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So, I just finished redoing my Vacuum booster and Master cylinder. One of the things that has been suggested is that we need to cover the MC so that water cannot drip on the MC during a rain storm or when driving in the rain. It has been suggested that we use aluminum foil to cover it. So I went looking for aluminum foil and when I couldn't find any, my wife said to look above the refrigerator. When I opened the door the first thing I saw was a 4" X 8" aluminum loaf pan...that we use when baking meat loaf. Guess what??? It is the perfect size. Here are some pics of the install.
http://www.gmcmhphotos.com/photos/g6527-master-cylinder-cover.html
Works for me, hope this works for someone else.
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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| Re: Master Cylinder Cover [message #238751 is a reply to message #238745] |
Tue, 04 February 2014 12:45  |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
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| Larry wrote on Tue, 04 February 2014 09:29 |
So, I just finished redoing my Vacuum booster and Master cylinder. One of the things that has been suggested is that we need to cover the MC so that water cannot drip on the MC during a rain storm or when driving in the rain. It has been suggested that we use aluminum foil to cover it. So I went looking for aluminum foil and when I couldn't find any, my wife said to look above the refrigerator. When I opened the door the first thing I saw was a 4" X 8" aluminum loaf pan...that we use when baking meat loaf. Guess what??? It is the perfect size. Here are some pics of the install.
http://www.gmcmhphotos.com/photos/g6527-master-cylinder-cover.html
Works for me, hope this works for someone else.
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Nice, but is this a common problem? I've driven all sorts of vehicles in all sorts of weather, including some that had the master cylinder in some really exposed places like under the floor, and never had a problem with water getting in the system.
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: Master Cylinder Cover [message #238753 is a reply to message #238745] |
Tue, 04 February 2014 13:01 |
Cadillackeeper
Messages: 464
Registered: October 2012
Location: Fort Lauderdale
Karma: 1
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I did not have water come in but I had water deteriorate the cover beyond recognition.
77 455 Elaganza II and 67 Animal, Built 500 Powered Eldo
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| Re: Master Cylinder Cover [message #238762 is a reply to message #238745] |
Tue, 04 February 2014 13:56 |
bryant374
Messages: 563
Registered: May 2004
Location: Pleasant Valley, NY 12569
Karma: 1
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What is the part number & does either Jim carry them?
Bill Bryant
PO 1976~PB (owned 34 years)
1914 Ford (owned 70 years)
1965 Corvette (owned 39 years)
GMC Motorhome History
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| Re: [GMCnet] Master Cylinder Cover [message #238782 is a reply to message #238745] |
Tue, 04 February 2014 17:11 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Larry,
Brilliant!
I hereby declare this item to be officially referred to as the L&L GMC M/C Protector. I would suggest you file a patent application
before someone tries to copy the idea! ;-D
Regards,
Rob M.
Sydney, Australia
PS - Talk about a great example of the KISS principle!
-----Original Message-----
From: Larry
So, I just finished redoing my Vacuum booster and Master cylinder. One of the things that has been suggested is that we need to
cover the MC so that water cannot drip on the MC during a rain storm or when driving in the rain. It has been suggested that we use
aluminum foil to cover it. So I went looking for aluminum foil and when I couldn't find any, my wife said to look above the
refrigerator. When I opened the door the first thing I saw was a 4" X 8" aluminum loaf pan...that we use when baking meat loaf.
Guess what??? It is the perfect size. Here are some pics of the install.
http://www.gmcmhphotos.com/photos/g6527-master-cylinder-cover.html
Works for me, hope this works for someone else.
--
Larry :)
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: Master Cylinder Cover [message #238809 is a reply to message #238762] |
Tue, 04 February 2014 19:47 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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| bryant374 wrote on Tue, 04 February 2014 12:56 |
What is the part number & does either Jim carry them?
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 Good one Bill!
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Master Cylinder Cover [message #238850 is a reply to message #238809] |
Wed, 05 February 2014 07:52 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Common ordinary 1/2 gallon milk or juice plastic carton cut properly fits extremely well over the MC.
This idea is not original to me. I copied it from another GMC I saw at an International Rally.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Master Cylinder Cover [message #238852 is a reply to message #238745] |
Wed, 05 February 2014 08:20 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Here's one more MC cover idea: Cut the bottom off of an empty 1 gallon oil
jug. The "ears" which fit behind the cover bales ensure that it can't come
off once the hatch cover is closed to prevent the cover from sliding
forward. (There are identical ears on the other side,by the way.):
http://www.gmcmhphotos.com/photos/odds-n-ends/p52794-master-cylinder-cover.html
http://goo.gl/7BKEwn
Ken H.
On Tue, Feb 4, 2014 at 12:29 PM, Larry wrote:
>
>
> So, I just finished redoing my Vacuum booster and Master cylinder. One of
> the things that has been suggested is that we need to cover the MC so that
> water cannot drip on the MC during a rain storm or when driving in the
> rain. It has been suggested that we use aluminum foil to cover it. So I
> went looking for aluminum foil and when I couldn't find any, my wife said
> to look above the refrigerator. When I opened the door the first thing I
> saw was a 4" X 8" aluminum loaf pan...that we use when baking meat loaf.
> Guess what??? It is the perfect size. Here are some pics of the install.
>
> http://www.gmcmhphotos.com/photos/g6527-master-cylinder-cover.html
>
> Works for me, hope this works for someone else.
> --
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Master Cylinder Cover [message #238880 is a reply to message #238759] |
Wed, 05 February 2014 11:39 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| Rivers wrote on Tue, 04 February 2014 12:26 |
Larry, I had the same problem when I bought mine.
I tried cleaning it up but was not satisfied and I was having trouble with my
brakes,so I replaced the master cyl. and found later that after painting it it started
rusting up again. So I went looking for a cure and found one at Lowes, it was a
1/4 inch of weather stripping that I installed down both sides and across the top
on both sides. After closing the lid there is a tight fit and the water just runs out the
bottom, no more rusty cyl.. and it comes in white
Rivers
77 ele
scappoose or.
On Tuesday, February 4, 2014 11:14 AM, anthony ezzo <ezzo@earthlink.net> wrote:
I did not have water come in but I had water deteriorate the cover beyond recognition.
--
77 455 Elaganza II and 67 Animal, Built 500 Powered Eldo
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If the issue is rust, I just clearcoat mine and that seems to work.
http://www.gmcmhphotos.com/photos/miscellaneous/p52795-img-1336-1.html
http://www.gmcmhphotos.com/photos/miscellaneous/p52795-img-1336-1.html
Bob de Kruyff
78 Eleganza
Chandler, AZ
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