Home » Public Forums » GMCnet » [GMCnet] Dagnumit, front brake hung up and air system not working right
| [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138930] |
Sat, 13 August 2011 19:02  |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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I have finished my upholstery and was ready to take it out on the road
finally. The coach has sat since the great squirrel invasion of 2008... a
little over two years. I have started it frequently and even pulled it out
into the driveway several times from is garage storage. But sitting has not
been kind to the mechanicals... The alternator was squealing. I pulled it
off, had it tested and it was still good. I bought a new belt for it from
NAPA. I was surprised that the NAPA belt was quite sturdy compared to the
gates belts I had on it. After getting the new belt on and tight, it is
silent as can be and charging appropriately.
First problem: The right front brake is hung up. I drove the gas station
and back and it is hot enough to be smoking. Wheel and lugs too hot to
touch. Will wait until it cools and jack it up and see what I can tell.
Advice?
Second problem: The air system... I thought the pump was bad as it would
only fill to about 60 lbs. and it takes forever to get there. I came
across a Vaire some time ago and so I put that on. The system still only
pumps to about 60 lbs on it's own power. There is a brass fitting on the
bottom of the little air tank that has a pin hole right in the center that
is exhausting a small stream of air. I assumed this was a water drain but
doesn't seem like it should be letting out air all the time. The coach will
more-or-less hold air when in hold. I can pump it with the shop compressor
and fill to ride height. If I then put it back on travel, it will slowly
drop to 60 lbs even though the pump is running. Suggestions?
Mike
77 Palm Beach, 403
Dublin, Ohio
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138935 is a reply to message #138930] |
Sat, 13 August 2011 19:30  |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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1. Replace water drain. Put a plug in it temporary.
2. Install cut off valves with schraders at air bag. Use external air compressor to blow air bags up to ride height, and use the cut off to isolate the rest of the air system. If the bags are good, this will work very well. I brought my current coach home from TX this way. A 1600 mile trip without any further air bag incidents.
3. You might check the quality of wire going to the air compressor, assuming we are talking about power level. P.O. had 18 gauge wire going to air compressor. Cannot carry the current needed for the pump.
Tom Phipps, with very robust wire to air compressor
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138942 is a reply to message #138930] |
Sat, 13 August 2011 20:10 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| Mike Teets wrote on Sat, 13 August 2011 20:02 |
I have finished my upholstery and was ready to take it out on the road finally. The coach has sat since the great squirrel invasion of 2008... a little over two years. I have started it frequently and even pulled it out into the driveway several times from is garage storage. But sitting has not been kind to the mechanicals... The alternator was squealing. I pulled it
off, had it tested and it was still good. I bought a new belt for it from NAPA. I was surprised that the NAPA belt was quite sturdy compared to the gates belts I had on it. After getting the new belt on and tight, it is silent as can be and charging appropriately.
First problem: The right front brake is hung up. I drove the gas station and back and it is hot enough to be smoking. Wheel and lugs too hot to touch. Will wait until it cools and jack it up and see what I can tell.
Advice?
Second problem: The air system... I thought the pump was bad as it would only fill to about 60 lbs. and it takes forever to get there. I came across a Vaire some time ago and so I put that on. The system still only pumps to about 60 lbs on it's own power. There is a brass fitting on the bottom of the little air tank that has a pin hole right in the center that is exhausting a small stream of air. I assumed this was a water drain but doesn't seem like it should be letting out air all the time. The coach will more-or-less hold air when in hold. I can pump it with the s hop compressor and fill to ride height. If I then put it back on travel, it will slowly drop to 60 lbs even though the pump is running. Suggestions?
Mike
77 Palm Beach, 403
Dublin, Ohio
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Mike,
Open the bleeder on the stuck brake. If fluid fires right out, you have a bad rubber line. If it doesn't hit the pedal a few times and try again. There should be no residual pressure.
The drain on the bottom is nothing but a schrader valve in a pipe fitting. The reason it looks like a pin hole is probably because a wasp or a spider plugged it up for you. That can be unscrewed from the tank and cleaned. Get a good tire valve tool and a new core and that will be fixed. Leave it with a good tire valve cap on it. Drain it every time you think of it.
The air bleed down in travel is probably (assuming EL1) a bad high control valve. They can be replaced or rebuilt.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138947 is a reply to message #138942] |
Sat, 13 August 2011 20:23 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Matt, thanks for suggestions... The fitting on the small tank is an elbow with a schrader valve on it. The valve exits horizontally, while the pin hole is actually under the elbow, in the center of the brass.
Mike
Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138951 is a reply to message #138930] |
Sat, 13 August 2011 20:49 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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The air system is fixed! Thanks Matt, Hal, Tom. Since nobody jumped in and said something like "that is your vapor valve and its supposed to do that", it lead me to just pull it off. Turns out it wasn't a pin hole, it was a split in the brass elbow. Once the pressure reached a certain point... about 60 psi, it would just open and let out all the compressed goodness. Just removed the elbow and reinstalled the shrader valve. It now pumps up in seconds.
Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138957 is a reply to message #138951] |
Sat, 13 August 2011 21:18 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| Mike Teets wrote on Sat, 13 August 2011 21:49 |
The air system is fixed! Thanks Matt, Hal, Tom. Since nobody jumped in and said something like "that is your vapor valve and its supposed to do that", it lead me to just pull it off. Turns out it wasn't a pin hole, it was a split in the brass elbow. Once the pressure reached a certain point... about 60 psi, it would just open and let out all the compressed goodness. Just removed the elbow and reinstalled the shrader valve. It now pumps up in seconds.
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Mike,
Good catch.
Mine isn't an elbow. As your is, I bet someone left water in to freeze and cracked the fitting. But you found it and fixed and that is what matters.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138969 is a reply to message #138930] |
Sat, 13 August 2011 21:52 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Back to brakes... Assuming I need new calipers on the front, can I just walk into NAPA and get them? I see lots of references to parts numbers pads, or for 80mm upfitting, but nothing on standard caliper part numbers.
Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #138976 is a reply to message #138969] |
Sat, 13 August 2011 22:26 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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here is some info
http://www.gmcmotorhome.info/brakes.html#oem
gene
On Sat, Aug 13, 2011 at 7:52 PM, Mike Teets <teamteets@gmail.com> wrote:
>
>
> Back to brakes... Assuming I need new calipers on the front, can I just walk into NAPA and get them? I see lots of references to parts numbers pads, or for 80mm upfitting, but nothing on standard caliper part numbers.
> --
> Mike
> 77 Palm Beach, 260, 403
> Dublin, OH
>
> http://teamteets.com/category/gmc/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and -------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139013 is a reply to message #138930] |
Sun, 14 August 2011 08:58 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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--- On Sun, 8/14/11, Mike Teets <teamteets@gmail.com> wrote:
From: Mike Teets <teamteets@gmail.com>
Subject: [GMCnet] Dagnumit, front brake hung up and air system not working right
To: gmclist@temp.gmcnet.org
Date: Sunday, August 14, 2011, 12:02 AM
First problem: The right front brake is hung up. I drove the gas station
and back and it is hot enough to be smoking. Wheel and lugs too hot to
touch. Will wait until it cools and jack it up and see what I can tell.
Advice?
When it cools, take off the road wheel. Loose and remove the caliper. Clean up the track it slide on, and all the parts. While it's off, check the runout of the disc. Often they warp when they get that hot. Replace it if it is out of tolerance. Have a look at the pads, if they're glazed and crazed from heat, replace. Put eveything back togetther with a bit of grease where the caliper moves side to side, and make sure it has movement. Go camping.
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139015 is a reply to message #138969] |
Sun, 14 August 2011 09:01 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Mike, it sounds very much to me like a failed front brake flexible line
between the caliper and the ridgid metal brake lines. If one has gone away,
the other can not be far behind it. If the brakes apply, then the caliper is
capable of moving and is likely not stuck or rusted in place. That would
leave a swelled inner hose that will expand when pressure is applied, and
when the pedal is released contracts and traps fluid in the line keeping the
caliper applied to the rotor. Sounds like what you have.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Sat, Aug 13, 2011 at 7:52 PM, Mike Teets <teamteets@gmail.com> wrote:
>
>
> Back to brakes... Assuming I need new calipers on the front, can I just
> walk into NAPA and get them? I see lots of references to parts numbers
> pads, or for 80mm upfitting, but nothing on standard caliper part numbers.
> --
> Mike
> 77 Palm Beach, 260, 403
> Dublin, OH
>
> http://teamteets.com/category/gmc/
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139022 is a reply to message #139015] |
Sun, 14 August 2011 09:27 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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I had to spend the morning turning my upholstery shop back into a mechanical
shop! I suspect you are right. I have not got the wheel off yet but the
brake is not seized this morning. If it was rusted in place it wouldn't
release over night. About 15 minutes getting the wheel off.
On Sun, Aug 14, 2011 at 10:01 AM, James Hupy <jamesh1296@gmail.com> wrote:
> Mike, it sounds very much to me like a failed front brake flexible line
> between the caliper and the ridgid metal brake lines. If one has gone away,
> the other can not be far behind it. If the brakes apply, then the caliper
> is
> capable of moving and is likely not stuck or rusted in place. That would
> leave a swelled inner hose that will expand when pressure is applied, and
> when the pedal is released contracts and traps fluid in the line keeping
> the
> caliper applied to the rotor. Sounds like what you have.
> Jim Hupy
> Salem, OR
> 78 GMC Royale 403
>
> On Sat, Aug 13, 2011 at 7:52 PM, Mike Teets <teamteets@gmail.com> wrote:
>
> >
> >
> > Back to brakes... Assuming I need new calipers on the front, can I just
> > walk into NAPA and get them? I see lots of references to parts numbers
> > pads, or for 80mm upfitting, but nothing on standard caliper part
> numbers.
> > --
> > Mike
> > 77 Palm Beach, 260, 403
> > Dublin, OH
> >
> > http://teamteets.com/category/gmc/
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139031 is a reply to message #139022] |
Sun, 14 August 2011 10:13 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
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Congratulations to the swollen flexible hose diagnosis winners! Apply
break pressure and the caliper remains firm. Open the bleeder screw and it
squirts fluid. Then the caliper is free.
Now for the third dagnumit: The upper shock mount is broken. Blistens.
On Sun, Aug 14, 2011 at 10:27 AM, Mike Teets <teamteets@gmail.com> wrote:
> I had to spend the morning turning my upholstery shop back into a
> mechanical shop! I suspect you are right. I have not got the wheel off
> yet but the brake is not seized this morning. If it was rusted in place it
> wouldn't release over night. About 15 minutes getting the wheel off.
>
>
> On Sun, Aug 14, 2011 at 10:01 AM, James Hupy <jamesh1296@gmail.com> wrote:
>
>> Mike, it sounds very much to me like a failed front brake flexible line
>> between the caliper and the ridgid metal brake lines. If one has gone
>> away,
>> the other can not be far behind it. If the brakes apply, then the caliper
>> is
>> capable of moving and is likely not stuck or rusted in place. That would
>> leave a swelled inner hose that will expand when pressure is applied, and
>> when the pedal is released contracts and traps fluid in the line keeping
>> the
>> caliper applied to the rotor. Sounds like what you have.
>> Jim Hupy
>> Salem, OR
>> 78 GMC Royale 403
>>
>> On Sat, Aug 13, 2011 at 7:52 PM, Mike Teets <teamteets@gmail.com> wrote:
>>
>> >
>> >
>> > Back to brakes... Assuming I need new calipers on the front, can I just
>> > walk into NAPA and get them? I see lots of references to parts numbers
>> > pads, or for 80mm upfitting, but nothing on standard caliper part
>> numbers.
>> > --
>> > Mike
>> > 77 Palm Beach, 260, 403
>> > Dublin, OH
>> >
>> > http://teamteets.com/category/gmc/
>> >
>> > _______________________________________________
>> > GMCnet mailing list
>> > Unsubscribe or Change List Options:
>> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> >
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139054 is a reply to message #139031] |
Sun, 14 August 2011 11:28 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Mike,
If you pull out your GMCMI Spring 2011 parts interchange index and go
to page 4 there is a list of available hoses that can be used as
replacement for the front stock calipers. Change both sides! To
all, if your front brake hoses are 10 years or older you should
consider replacing them. This is a common failure on the GMC! ASK
how I know!
If you're running the 80MM calipers then the left hose is 77320
($14.99)from AZ (Wagner#BH1327) and for the right 77421($18.99) from
AZ (Wagner#BH1326).
If you're not a member of GMCMI, why NOT! Best $30 you will spend
just for the part interchange even if you never go to a rally.
http://www.gmcmi.com/app.html
Shock mount on shock broke or shock mount on coach frame broke?
On the first I have gone with the KYB shocks and the best buy is Jim K.
http://www.appliedgmc.com/prod.itml/icOid/636
On the second you will have have the shock mount re-welded.
JR Wright
GMC GreatLaker
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On Aug 14, 2011, at 11:13 AM, Mike Teets wrote:
> Congratulations to the swollen flexible hose diagnosis winners!
> Apply
> break pressure and the caliper remains firm. Open the bleeder screw
> and it
> squirts fluid. Then the caliper is free.
>
> Now for the third dagnumit: The upper shock mount is broken.
> Blistens.
>
> On Sun, Aug 14, 2011 at 10:27 AM, Mike Teets <teamteets@gmail.com>
> wrote:
>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139095 is a reply to message #138930] |
Sun, 14 August 2011 14:01 |
Richard Brown
Messages: 281
Registered: May 2009
Karma: 1
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Senior Member |
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Another thing to think about when you look for whatever made the front brake lock up. You need to think about collateral damage. My front caliper stuck because of the brake hose. I replaced the caliper, pads, and line, but failed to notice that the heat generated by the stuck caliper boiled the grease out of the wheel bearing. The outer seal was fried. It took hardly any time at all to destroy the bearing and possibly the hub (I haven't measured the old hub, but it wouldn't surprise me if it's shot). If you are able to, check the bearing carefully for signs of leakage. The outer seal will be the most likely to fail due to heat. Better safe than sorry; The front bearings are pricey, but damaging the hub with the bearing is much more costly. Been there, done that.
Richard & Carol Brown
1974 Eleganza SE
"DILLIGAF"
Lindale, Tx. 75771
903-881-0192
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Richard & Carol Brown
1974 Eleganza SE
1174 Hickory Hills Dr.
Murchison, TX. 75778
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| Re: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139121 is a reply to message #139095] |
Sun, 14 August 2011 17:02 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Richard,
EXCELLENT POINT!
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: Richard Brown
Another thing to think about when you look for whatever made the front brake
lock up. You need to think about collateral damage. My front caliper stuck
because of the brake hose. I replaced the caliper, pads, and line, but
failed to notice that the heat generated by the stuck caliper boiled the
grease out of the wheel bearing. The outer seal was fried. It took hardly
any time at all to destroy the bearing and possibly the hub (I haven't
measured the old hub, but it wouldn't surprise me if it's shot). If you are
able to, check the bearing carefully for signs of leakage. The outer seal
will be the most likely to fail due to heat. Better safe than sorry; The
front bearings are pricey, but damaging the hub with the bearing is much
more costly. Been there, done that.
Richard
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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: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139123 is a reply to message #139031] |
Sun, 14 August 2011 17:05 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Mike et al,
See if you can find Teflon lined braided stainless steel lines for the 80MM
front calipers.
JimB & JimK both have them for the OEM front and rears.
Also JimK might be able to get your Bilstein replaced FOC, call him.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Mike Teets
Sent: Monday, 15 August 2011 1:13 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Dagnumit,front brake hung up and air system not
working right
Congratulations to the swollen flexible hose diagnosis winners! Apply
break pressure and the caliper remains firm. Open the bleeder screw and it
squirts fluid. Then the caliper is free.
Now for the third dagnumit: The upper shock mount is broken. Blistens.
On Sun, Aug 14, 2011 at 10:27 AM, Mike Teets <teamteets@gmail.com> wrote:
> I had to spend the morning turning my upholstery shop back into a
> mechanical shop! I suspect you are right. I have not got the wheel off
> yet but the brake is not seized this morning. If it was rusted in place
it
> wouldn't release over night. About 15 minutes getting the wheel off.
>
>
> On Sun, Aug 14, 2011 at 10:01 AM, James Hupy <jamesh1296@gmail.com> wrote:
>
>> Mike, it sounds very much to me like a failed front brake flexible line
>> between the caliper and the ridgid metal brake lines. If one has gone
>> away,
>> the other can not be far behind it. If the brakes apply, then the caliper
>> is
>> capable of moving and is likely not stuck or rusted in place. That would
>> leave a swelled inner hose that will expand when pressure is applied, and
>> when the pedal is released contracts and traps fluid in the line keeping
>> the
>> caliper applied to the rotor. Sounds like what you have.
>> Jim Hupy
>> Salem, OR
>> 78 GMC Royale 403
>>
>> On Sat, Aug 13, 2011 at 7:52 PM, Mike Teets <teamteets@gmail.com> wrote:
>>
>> >
>> >
>> > Back to brakes... Assuming I need new calipers on the front, can I just
>> > walk into NAPA and get them? I see lots of references to parts
numbers
>> > pads, or for 80mm upfitting, but nothing on standard caliper part
>> numbers.
>> > --
>> > Mike
>> > 77 Palm Beach, 260, 403
>> > Dublin, OH
>> >
>> > http://teamteets.com/category/gmc/
>> >
>> > _______________________________________________
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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: [GMCnet] Dagnumit, front brake hung up and air system not working right [message #139154 is a reply to message #139123] |
Sun, 14 August 2011 19:28 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Senior Member |
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I will try JimK in the morning. I tried the NAPA warehouse hoping I could
just be done with this today but they didn't have an appropriate shock or
the hoses in stock. I would rather support the Jims anyway but I am usually
just too impatient.
On Sun, Aug 14, 2011 at 6:05 PM, Rob Mueller <robmueller@iinet.net.au>wrote:
> Mike et al,
>
> See if you can find Teflon lined braided stainless steel lines for the 80MM
> front calipers.
>
> JimB & JimK both have them for the OEM front and rears.
>
> Also JimK might be able to get your Bilstein replaced FOC, call him.
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Mike Teets
> Sent: Monday, 15 August 2011 1:13 AM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Dagnumit,front brake hung up and air system not
> working right
>
> Congratulations to the swollen flexible hose diagnosis winners! Apply
> break pressure and the caliper remains firm. Open the bleeder screw and it
> squirts fluid. Then the caliper is free.
>
> Now for the third dagnumit: The upper shock mount is broken. Blistens.
>
> On Sun, Aug 14, 2011 at 10:27 AM, Mike Teets <teamteets@gmail.com> wrote:
>
> > I had to spend the morning turning my upholstery shop back into a
> > mechanical shop! I suspect you are right. I have not got the wheel off
> > yet but the brake is not seized this morning. If it was rusted in place
> it
> > wouldn't release over night. About 15 minutes getting the wheel off.
> >
> >
> > On Sun, Aug 14, 2011 at 10:01 AM, James Hupy <jamesh1296@gmail.com>
> wrote:
> >
> >> Mike, it sounds very much to me like a failed front brake flexible line
> >> between the caliper and the ridgid metal brake lines. If one has gone
> >> away,
> >> the other can not be far behind it. If the brakes apply, then the
> caliper
> >> is
> >> capable of moving and is likely not stuck or rusted in place. That would
> >> leave a swelled inner hose that will expand when pressure is applied,
> and
> >> when the pedal is released contracts and traps fluid in the line keeping
> >> the
> >> caliper applied to the rotor. Sounds like what you have.
> >> Jim Hupy
> >> Salem, OR
> >> 78 GMC Royale 403
> >>
> >> On Sat, Aug 13, 2011 at 7:52 PM, Mike Teets <teamteets@gmail.com>
> wrote:
> >>
> >> >
> >> >
> >> > Back to brakes... Assuming I need new calipers on the front, can I
> just
> >> > walk into NAPA and get them? I see lots of references to parts
> numbers
> >> > pads, or for 80mm upfitting, but nothing on standard caliper part
> >> numbers.
> >> > --
> >> > Mike
> >> > 77 Palm Beach, 260, 403
> >> > Dublin, OH
> >> >
> >> > http://teamteets.com/category/gmc/
> >> >
> >> > _______________________________________________
> >> > GMCnet mailing list
> >> > Unsubscribe or Change List Options:
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> >> >
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
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> >>
> >
> >
> _______________________________________________
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> _______________________________________________
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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