| [GMCnet] Sticking Caliper [message #274236] |
Mon, 23 March 2015 22:09  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Well I’ve thought I smelled burning brakes for the last few days, just driving the coach around town for errands. Today when I pulled in to the lot at Home Depot i smelled it again and thought the coach was running strangely, as if a brake were stuck. I didn’t have my infrared thermometer with me but touching each of the wheels it was abundantly clear that the driver’s front wheel was HOT! Now my question is this - what should I look for to see if the bearing grease has liquified and gone south? Original knuckles - bearing serviced by Tom Hampton about 15,000 miles ago. 80mm calipers installed by the Beloved PO.
I have no idea yet what caused the caliper to freeze, but backing up and jamming on the brakes seemed to make it release. Tom also installed new stainless steel brake lines and I would assume new hoses too.
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Sticking Caliper [message #274237 is a reply to message #274236] |
Mon, 23 March 2015 22:49  |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Typically the brake line. Release the bleeder on the to see if it is
under pressure
On Monday, March 23, 2015, Larry Davick wrote:
> Well I’ve thought I smelled burning brakes for the last few days, just
> driving the coach around town for errands. Today when I pulled in to the
> lot at Home Depot i smelled it again and thought the coach was running
> strangely, as if a brake were stuck. I didn’t have my infrared thermometer
> with me but touching each of the wheels it was abundantly clear that the
> driver’s front wheel was HOT! Now my question is this - what should I look
> for to see if the bearing grease has liquified and gone south? Original
> knuckles - bearing serviced by Tom Hampton about 15,000 miles ago. 80mm
> calipers installed by the Beloved PO.
>
> I have no idea yet what caused the caliper to freeze, but backing up and
> jamming on the brakes seemed to make it release. Tom also installed new
> stainless steel brake lines and I would assume new hoses too.
>
> Larry Davick
> A Mystery Machine
> 1976(ish) Palm Beach
> Fremont, CA
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
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] Sticking Caliper [message #274256 is a reply to message #274236] |
Tue, 24 March 2015 07:52 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Larry,
The internal bore of the caliper and / or the OD of the piston could be rusted and is not allowing the piston to return.
Regards,
Rob M.
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry Davick
Sent: Monday, March 23, 2015 10:10 PM
To: GMC Motorhome List
Subject: [GMCnet] Sticking Caliper
Well I've thought I smelled burning brakes for the last few days, just driving the coach around town for errands. Today when I
pulled in to the lot at Home Depot i smelled it again and thought the coach was running strangely, as if a brake were stuck. I
didn't have my infrared thermometer with me but touching each of the wheels it was abundantly clear that the driver's front wheel
was HOT! Now my question is this - what should I look for to see if the bearing grease has liquified and gone south? Original
knuckles - bearing serviced by Tom Hampton about 15,000 miles ago. 80mm calipers installed by the Beloved PO.
I have no idea yet what caused the caliper to freeze, but backing up and jamming on the brakes seemed to make it release. Tom also
installed new stainless steel brake lines and I would assume new hoses too.
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA
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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] Sticking Caliper [message #274301 is a reply to message #274236] |
Tue, 24 March 2015 19:24 |
Cadillackeeper
Messages: 464
Registered: October 2012
Location: Fort Lauderdale
Karma: 1
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Senior Member |
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Its the hose swelled up inside.Lets fluid under brake foot pressure in, but can't let it back out.Change both sides not just one as it will happen soon to the other side.
77 455 Elaganza II and 67 Animal, Built 500 Powered Eldo
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| Re: [GMCnet] Sticking Caliper [message #274378 is a reply to message #274315] |
Thu, 26 March 2015 08:11 |
Jim at the Co-op
Messages: 291
Registered: May 2014
Location: Orlando Florida
Karma: 2
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Senior Member |
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You have had an even with your brakes, chances are most of the other
component partsare also near the end of their envelope of life. If you
don;t want to keep messing with your brakes, change it all. Hoses,
calipers, wheel cylinders, combo valve, master cyl., mybe the boster. Now
you may shoot flames out of the back but at least you can stop the thing
and run away....
Jim Bounds
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On Wed, Mar 25, 2015 at 10:31 AM, Richard B Cortezzo
wrote:
> I had a stuck caliper it turned out to be a rock.
> --
> Rich Cortezzo
> Green Valley AZ
> 1978 Eleganza II
> F389018
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