Home » Public Forums » GMCnet » [GMCnet] Soft brakes
| [GMCnet] Soft brakes [message #106211] |
Fri, 19 November 2010 13:09  |
bill schurman
Messages: 97
Registered: February 2004
Karma: 0
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My coach is safely stored inside for the winter, however last Fall I noticed that my brakes were soft to the point the my foot was to the floor on the brake pedal to stop. My front and rear shoes are fine, my brake lines are new (within three years); my lines were professionally bled; and, the fluid level is fine. Other things to consider ? Thanks in advance.
William S. Schurman
P.O. 773325
Steamboat Springs, CO at the foot of Rabbit Ears Pass
970-846-4212
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| Re: [GMCnet] Soft brakes [message #106213 is a reply to message #106211] |
Fri, 19 November 2010 13:34  |
g.winger
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
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Same thing happened to us at the end of the driveway, starting a trip. Changed the MC. Bleed all 6,,,,samething. Mc had what looked like mud in the bottom. Changed the combo valve,,,,once again all 6. Fixed it. later the "Boss" stated she doesn't like bleeding brakes so I now pressure bleed with comp. air. I would change both. MC are cheap. Combonation valves aren't. Safty is whats important. Jim K. has both. Got mine at a pontiac dealership.,,,,PL
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| Re: [GMCnet] Soft brakes [message #106215 is a reply to message #106211] |
Fri, 19 November 2010 13:53 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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| bill schurman wrote on Fri, 19 November 2010 13:09 |
My coach is safely stored inside for the winter, however last Fall I noticed that my brakes were soft to the point the my foot was to the floor on the brake pedal to stop. My front and rear shoes are fine, my brake lines are new (within three years); my lines were professionally bled; and, the fluid level is fine. Other things to consider ? Thanks in advance.
William S. Schurman
|
I have had problems on the Harley with DOT 5 brake fluid. If I don't flush the brake fluid annually I get bubble formation in the brake fluid when I take a trip and get to your altitude on western mountain passes. The first time it happened made for a fun ride heading west coming down from Rabbit Ears Pass. (no previous problem in IA or NE, grin).
I would suggest bleeding your brakes enough to flush the system and see if that takes care of it. A power bleeder makes this a one person job. You can build a power bleeder cheap using a small pump type garden sprayer.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Soft brakes [message #106225 is a reply to message #106218] |
Fri, 19 November 2010 15:13 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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sure, where else???
http://gmcmotorhome.info/brakes.html#press
gene
On Fri, Nov 19, 2010 at 12:22 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
>
> Hi, Steve.
>
> Any place to look for plans to do that "power bleeder?
>
>
> * "An unarmed man can but flee *
> * from evil. Evil can NEVER be *
> * overcome by flight FROM it." *
>
> * * * * * * * * * * * *
> * D C "Mac" Macdonald *
> * Amateur Radio K2GKK *
> * USAF & FAA, Retired *
> ** Oklahoma City, OK **
> * * "The Money Pit" * *
> * * ex-Palm Beach, 76 *
> * * * * * * * * * * * *
>
>
>
>
>
> To: gmclist@temp.gmcnet.org
> From: midlf@centurytel.net
> Date: Fri, 19 Nov 2010 13:53:33 -0600
> Subject: Re: [GMCnet] Soft brakes
>
> I have had problems on the Harley with DOT 5 brake fluid.
> If I don't flush the brake fluid annually I get bubble
> formation in the brake fluid when I take a trip and get
> to your altitude on western mountain passes.
>
> The first time it happened made for a fun ride heading
> west coming down from Rabbit Ears Pass. (no previous
> problem in IA or NE, grin).
>
> I would suggest bleeding your brakes enough to flush the
> system and see if that takes care of it. A power bleeder
> makes this a one person job. You can build a power
> bleeder cheap using a small pump type garden sprayer.
>
> --
> Steve Southworth
> 1974 Glacier TZE064V100150
> Palmyra WI
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription 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] Soft brakes [message #106234 is a reply to message #106217] |
Fri, 19 November 2010 17:10 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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| bill schurman wrote on Fri, 19 November 2010 14:10 |
Steve,
There is a "run-off" ramp on Rabbit Ears( going to Steamboat).!!! Many truckers ignore the ramp only to meet their demise further down entering a sharp left hand turn. Gets them every time. Glad that you "enjoyed"(?) the ride. Even driving a car down the Pass there are state police waiting to strictly enforce the 50 mph limit.
AS to my brakes I have DOT 4 not Dot 5. They were bled 3 years ago. Time to start over? Which DOT # is best?
William S. Schurman
|
So, the state police, by lighting up on a speeding vehicle with failed brakes can cause it to slow down to a safe speed! ??????? `splain this to me until it makes sense <grin>.
DOT 3&4 are compatible and are glycol based (I think), DOT 5, which is silicone based, is not compatible with DOT 3&4.
I is not easy to convert from DOT 3/4 to 5 (been there done that once) so I do not recommend that. With the problems with air retention I have experienced with DOT5 I would not drive vehicle with it in the mountains unless it had been recently flushed with fresh silicone fluid.
As to which DOT is best I would use DOT4 and flush it out every two years. (DOT 3/4 will absorb moisture and should be changed periodically in applications where brakes get hot, such as GMC front brakes.) Many here choose to use the super blue and red fluids as they have a very high rating for DOT4 and it is readily apparent, when flushing with the opposite color, when the fresh fluid reaches the bleed screw.
For both Mac and Bill, Gene has posted the location of all the info you need. That section has the pressure bleeder construction and operation instructions, and a bit further down, has a comparison of the various brake fluids.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Soft brakes [message #106240 is a reply to message #106225] |
Fri, 19 November 2010 19:59 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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Okay, Gene, I downloaded and printed that document.
What I can't figure out is where that little round
"M/C" cap goes on my GMC motorhome's Master Cylinder.
* "An unarmed man can but flee *
* from evil. Evil can NEVER be *
* overcome by flight FROM it." *
* * * * * * * * * * * *
* D C "Mac" Macdonald *
* Amateur Radio K2GKK *
* USAF & FAA, Retired *
** Oklahoma City, OK **
* * "The Money Pit" * *
* * ex-Palm Beach, 76 *
* * * * * * * * * * * *
> Date: Fri, 19 Nov 2010 13:13:05 -0800
> From: mr.erfisher@gmail.com
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Soft brakes
>
> sure, where else???
>
> http://gmcmotorhome.info/brakes.html#press
>
> gene
>
>
>
> On Fri, Nov 19, 2010 at 12:22 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
>
> >
> > Hi, Steve.
> >
> > Any place to look for plans to do that "power bleeder?
> >
> > * * * * * * * * * * * *
> > * D C "Mac" Macdonald *
> > * Amateur Radio K2GKK *
> > * USAF & FAA, Retired *
> > ** Oklahoma City, OK **
> > * * "The Money Pit" * *
> > * * ex-Palm Beach, 76 *
> > * * * * * * * * * * * *
> >
> >
> >
> >
> >
> > To: gmclist@temp.gmcnet.org
> > From: midlf@centurytel.net
> > Date: Fri, 19 Nov 2010 13:53:33 -0600
> > Subject: Re: [GMCnet] Soft brakes
> >
> > I have had problems on the Harley with DOT 5 brake fluid.
> > If I don't flush the brake fluid annually I get bubble
> > formation in the brake fluid when I take a trip and get
> > to your altitude on western mountain passes.
> >
> > The first time it happened made for a fun ride heading
> > west coming down from Rabbit Ears Pass. (no previous
> > problem in IA or NE, grin).
> >
> > I would suggest bleeding your brakes enough to flush the
> > system and see if that takes care of it. A power bleeder
> > makes this a one person job. You can build a power
> > bleeder cheap using a small pump type garden sprayer.
> >
> > --
> > Steve Southworth
> > 1974 Glacier TZE064V100150
> > Palmyra WI
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| Re: [GMCnet] Soft brakes [message #106241 is a reply to message #106240] |
Fri, 19 November 2010 20:13 |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| k2gkk wrote on Fri, 19 November 2010 17:59 |
Okay, Gene, I downloaded and printed that document.
What I can't figure out is where that little round
"M/C" cap goes on my GMC motorhome's Master Cylinder.
|
The cap is application specific. (The professional kits I have seen have a couple of different flat plates and straps to fit many different MC's.)
If you replace your master cylinder, save the old cap. (If nothing else it will make good trading stock.) I also understand that you might need an extra gasket to make a good seal. They are sold on the "HELP" section of the auto parts store. (I read that somewhere.)
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Soft brakes [message #106243 is a reply to message #106240] |
Fri, 19 November 2010 20:31 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Mac, contact me off net at jamesh1296@gmail.com and I will fix you up with
whatever you need. I make the whole kit.
Jim Hupy
Salem, Or
78 Royale 403
On Fri, Nov 19, 2010 at 5:59 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
>
> Okay, Gene, I downloaded and printed that document.
> What I can't figure out is where that little round
> "M/C" cap goes on my GMC motorhome's Master Cylinder.
>
>
> * "An unarmed man can but flee *
> * from evil. Evil can NEVER be *
> * overcome by flight FROM it." *
>
>
> * * * * * * * * * * * *
> * D C "Mac" Macdonald *
> * Amateur Radio K2GKK *
> * USAF & FAA, Retired *
> ** Oklahoma City, OK **
> * * "The Money Pit" * *
> * * ex-Palm Beach, 76 *
> * * * * * * * * * * * *
>
>
>
>
> > Date: Fri, 19 Nov 2010 13:13:05 -0800
> > From: mr.erfisher@gmail.com
> > To: gmclist@temp.gmcnet.org
> > Subject: Re: [GMCnet] Soft brakes
> >
> > sure, where else???
> >
> > http://gmcmotorhome.info/brakes.html#press
> >
> > gene
> >
> >
> >
> > On Fri, Nov 19, 2010 at 12:22 PM, D C *Mac* Macdonald <k2gkk@hotmail.com
> >wrote:
> >
> > >
> > > Hi, Steve.
> > >
> > > Any place to look for plans to do that "power bleeder?
> > >
> > > * * * * * * * * * * * *
> > > * D C "Mac" Macdonald *
> > > * Amateur Radio K2GKK *
> > > * USAF & FAA, Retired *
> > > ** Oklahoma City, OK **
> > > * * "The Money Pit" * *
> > > * * ex-Palm Beach, 76 *
> > > * * * * * * * * * * * *
> > >
> > >
> > >
> > >
> > >
> > > To: gmclist@temp.gmcnet.org
> > > From: midlf@centurytel.net
> > > Date: Fri, 19 Nov 2010 13:53:33 -0600
> > > Subject: Re: [GMCnet] Soft brakes
> > >
> > > I have had problems on the Harley with DOT 5 brake fluid.
> > > If I don't flush the brake fluid annually I get bubble
> > > formation in the brake fluid when I take a trip and get
> > > to your altitude on western mountain passes.
> > >
> > > The first time it happened made for a fun ride heading
> > > west coming down from Rabbit Ears Pass. (no previous
> > > problem in IA or NE, grin).
> > >
> > > I would suggest bleeding your brakes enough to flush the
> > > system and see if that takes care of it. A power bleeder
> > > makes this a one person job. You can build a power
> > > bleeder cheap using a small pump type garden sprayer.
> > >
> > > --
> > > Steve Southworth
> > > 1974 Glacier TZE064V100150
> > > Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Soft brakes [message #106244 is a reply to message #106234] |
Fri, 19 November 2010 20:39 |
bill schurman
Messages: 97
Registered: February 2004
Karma: 0
|
Member |
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|
Yea, Yea, try telling it to the CSP. I'm a lawyer and I know how "understanding" (?) they are. My Pacifica with 90+K miles has warped front roters. Man do they shake. Summit Racing has slotted rotors. That's what I'm having installed. I put them on my ' 90 SHO and they do stop the car.
I recall reading about FORD DOT fluid and it's performance. Anyone care to enlighten this poor lawyer ??
William S. Schurman
P.O. 773325
Steamboat Springs, CO at the foot of Rabbit Ears Pass
970-846-4212
> To: gmclist@temp.gmcnet.org
> From: midlf@centurytel.net
> Date: Fri, 19 Nov 2010 17:10:49 -0600
> Subject: Re: [GMCnet] Soft brakes
>
>
>
> bill schurman wrote on Fri, 19 November 2010 14:10
> > Steve,
> > There is a "run-off" ramp on Rabbit Ears( going to Steamboat).!!! Many truckers ignore the ramp only to meet their demise further down entering a sharp left hand turn. Gets them every time. Glad that you "enjoyed"(?) the ride. Even driving a car down the Pass there are state police waiting to strictly enforce the 50 mph limit.
> > AS to my brakes I have DOT 4 not Dot 5. They were bled 3 years ago. Time to start over? Which DOT # is best?
> >
> >
> > William S. Schurman
>
>
>
> So, the state police, by lighting up on a speeding vehicle with failed brakes can cause it to slow down to a safe speed! ??????? `splain this to me until it makes sense <grin>.
>
> DOT 3&4 are compatible and are glycol based (I think), DOT 5, which is silicone based, is not compatible with DOT 3&4.
>
> I is not easy to convert from DOT 3/4 to 5 (been there done that once) so I do not recommend that. With the problems with air retention I have experienced with DOT5 I would not drive vehicle with it in the mountains unless it had been recently flushed with fresh silicone fluid.
>
> As to which DOT is best I would use DOT4 and flush it out every two years. (DOT 3/4 will absorb moisture and should be changed periodically in applications where brakes get hot, such as GMC front brakes.) Many here choose to use the super blue and red fluids as they have a very high rating for DOT4 and it is readily apparent, when flushing with the opposite color, when the fresh fluid reaches the bleed screw.
>
> For both Mac and Bill, Gene has posted the location of all the info you need. That section has the pressure bleeder construction and operation instructions, and a bit further down, has a comparison of the various brake fluids.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Soft brakes [message #106248 is a reply to message #106244] |
Fri, 19 November 2010 21:25 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
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Bill,
I did a lot of searching and the ATE Dot 4 fluids listed below are the
"best" Dot 4 fluids available. Yes, its specs are BETTER than the Ford Dot
4!
Super Blue:
http://www.tirerack.com/brakes/accessoryDetail.jsp?ID=21
Note that is says the Super Blue is not DOT approved for Florida. This is
strange as I bought 3 liters of Super Blue and 3 liters of Type 200 from a
hot rod VW shop in Orlando!
Type 200:
http://www.tirerack.com/brakes/accessoryDetail.jsp?ID=22
Note that the two fluids are exactly the same except for the color. This is
very handy when you flush out the system.
Regards,
Rob M.
USAussie
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of bill schurman
Sent: Friday, November 19, 2010 8:40 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Soft brakes
Yea, Yea, try telling it to the CSP. I'm a lawyer and I know how
"understanding" (?) they are. My Pacifica with 90+K miles has warped front
roters. Man do they shake. Summit Racing has slotted rotors. That's what I'm
having installed. I put them on my ' 90 SHO and they do stop the car.
I recall reading about FORD DOT fluid and it's performance. Anyone care to
enlighten this poor lawyer ??
William S. Schurman
P.O. 773325
Steamboat Springs, CO at the foot of Rabbit Ears Pass
970-846-4212
> To: gmclist@temp.gmcnet.org
> From: midlf@centurytel.net
> Date: Fri, 19 Nov 2010 17:10:49 -0600
> Subject: Re: [GMCnet] Soft brakes
>
>
>
> bill schurman wrote on Fri, 19 November 2010 14:10
> > Steve,
> > There is a "run-off" ramp on Rabbit Ears( going to Steamboat).!!! Many
truckers ignore the ramp only to meet their demise further down entering a
sharp left hand turn. Gets them every time. Glad that you "enjoyed"(?) the
ride. Even driving a car down the Pass there are state police waiting to
strictly enforce the 50 mph limit.
> > AS to my brakes I have DOT 4 not Dot 5. They were bled 3 years ago. Time
to start over? Which DOT # is best?
> >
> >
> > William S. Schurman
>
>
>
> So, the state police, by lighting up on a speeding vehicle with failed
brakes can cause it to slow down to a safe speed! ??????? `splain this to
me until it makes sense <grin>.
>
> DOT 3&4 are compatible and are glycol based (I think), DOT 5, which is
silicone based, is not compatible with DOT 3&4.
>
> I is not easy to convert from DOT 3/4 to 5 (been there done that once) so
I do not recommend that. With the problems with air retention I have
experienced with DOT5 I would not drive vehicle with it in the mountains
unless it had been recently flushed with fresh silicone fluid.
>
> As to which DOT is best I would use DOT4 and flush it out every two years.
(DOT 3/4 will absorb moisture and should be changed periodically in
applications where brakes get hot, such as GMC front brakes.) Many here
choose to use the super blue and red fluids as they have a very high rating
for DOT4 and it is readily apparent, when flushing with the opposite color,
when the fresh fluid reaches the bleed screw.
>
> For both Mac and Bill, Gene has posted the location of all the info you
need. That section has the pressure bleeder construction and operation
instructions, and a bit further down, has a comparison of the various brake
fluids.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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] Soft brakes [message #106256 is a reply to message #106248] |
Fri, 19 November 2010 21:55 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
|
Senior Member |
|
|
Rob,
Check on the new Dot 5.1 fluid. No, it is not silicone.
Gary Kosier
----- Original Message -----
From: "Rob Mueller" <robmueller@iinet.net.au>
To: <gmclist@temp.gmcnet.org>
Sent: Friday, November 19, 2010 10:25 PM
Subject: Re: [GMCnet] Soft brakes
> Bill,
>
> I did a lot of searching and the ATE Dot 4 fluids listed below
> are the
> "best" Dot 4 fluids available. Yes, its specs are BETTER than
> the Ford Dot
> 4!
>
> Super Blue:
>
> http://www.tirerack.com/brakes/accessoryDetail.jsp?ID=21
>
> Note that is says the Super Blue is not DOT approved for
> Florida. This is
> strange as I bought 3 liters of Super Blue and 3 liters of Type
> 200 from a
> hot rod VW shop in Orlando!
>
> Type 200:
>
> http://www.tirerack.com/brakes/accessoryDetail.jsp?ID=22
>
> Note that the two fluids are exactly the same except for the
> color. This is
> very handy when you flush out the system.
>
> Regards,
> Rob M.
> USAussie
>
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of bill
> schurman
> Sent: Friday, November 19, 2010 8:40 PM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Soft brakes
>
>
> Yea, Yea, try telling it to the CSP. I'm a lawyer and I know
> how
> "understanding" (?) they are. My Pacifica with 90+K miles has
> warped front
> roters. Man do they shake. Summit Racing has slotted rotors.
> That's what I'm
> having installed. I put them on my ' 90 SHO and they do stop
> the car.
>
> I recall reading about FORD DOT fluid and it's performance.
> Anyone care to
> enlighten this poor lawyer ??
>
>
> William S. Schurman
> P.O. 773325
> Steamboat Springs, CO at the foot of Rabbit Ears Pass
> 970-846-4212
>
>
>
>
>> To: gmclist@temp.gmcnet.org
>> From: midlf@centurytel.net
>> Date: Fri, 19 Nov 2010 17:10:49 -0600
>> Subject: Re: [GMCnet] Soft brakes
>>
>>
>>
>> bill schurman wrote on Fri, 19 November 2010 14:10
>> > Steve,
>> > There is a "run-off" ramp on Rabbit Ears( going to
>> > Steamboat).!!! Many
> truckers ignore the ramp only to meet their demise further down
> entering a
> sharp left hand turn. Gets them every time. Glad that you
> "enjoyed"(?) the
> ride. Even driving a car down the Pass there are state police
> waiting to
> strictly enforce the 50 mph limit.
>> > AS to my brakes I have DOT 4 not Dot 5. They were bled 3
>> > years ago. Time
> to start over? Which DOT # is best?
>> >
>> >
>> > William S. Schurman
>>
>>
>>
>> So, the state police, by lighting up on a speeding vehicle
>> with failed
> brakes can cause it to slow down to a safe speed! ???????
> `splain this to
> me until it makes sense <grin>.
>>
>> DOT 3&4 are compatible and are glycol based (I think), DOT 5,
>> which is
> silicone based, is not compatible with DOT 3&4.
>>
>> I is not easy to convert from DOT 3/4 to 5 (been there done
>> that once) so
> I do not recommend that. With the problems with air retention
> I have
> experienced with DOT5 I would not drive vehicle with it in the
> mountains
> unless it had been recently flushed with fresh silicone fluid.
>>
>> As to which DOT is best I would use DOT4 and flush it out
>> every two years.
> (DOT 3/4 will absorb moisture and should be changed
> periodically in
> applications where brakes get hot, such as GMC front brakes.)
> Many here
> choose to use the super blue and red fluids as they have a very
> high rating
> for DOT4 and it is readily apparent, when flushing with the
> opposite color,
> when the fresh fluid reaches the bleed screw.
>>
>> For both Mac and Bill, Gene has posted the location of all the
>> info you
> need. That section has the pressure bleeder construction and
> operation
> instructions, and a bit further down, has a comparison of the
> various brake
> fluids.
>> --
>> Steve Southworth
>> 1974 Glacier TZE064V100150
>> Palmyra WI
>> _______________________________________________
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>
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| Re: [GMCnet] Soft brakes [message #106267 is a reply to message #106256] |
Fri, 19 November 2010 23:00 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Gary,
Here's the specs published in Wikipedia
Boiling points for common braking fluids
TYPE Dry boiling point Wet boiling point
DOT 3 205 °C (401 °F) 140 °C (284 °F)
DOT 4 230 °C (446 °F) 155 °C (311 °F)
DOT 5 260 °C (500 °F) 180 °C (356 °F)
DOT 5.1 270 °C (518 °F) 190 °C (374 °F)
Here's the specs ATE publishes:
Type 200 280 °C 198 °C
Super Bl 280 °C 198 °C
Here's a link for more details:
http://tinyurl.com/25vyn43
Regards,
Rob M.
USAussie
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Kosier
Sent: Friday, November 19, 2010 9:55 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Soft brakes
Rob,
Check on the new Dot 5.1 fluid. No, it is not silicone.
Gary Kosier
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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] Soft brakes [message #106272 is a reply to message #106211] |
Sat, 20 November 2010 04:13 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
| bill schurman wrote on Fri, 19 November 2010 13:09 |
My coach is safely stored inside for the winter, however last Fall I noticed that my brakes were soft to the point the my foot was to the floor on the brake pedal to stop. My front and rear shoes are fine, my brake lines are new (within three years); my lines were professionally bled; and, the fluid level is fine. Other things to consider ? Thanks in advance.
William S. Schurman
P.O. 773325
Steamboat Springs, CO at the foot of Rabbit Ears Pass
970-846-4212
|
Before you get carried away replacing stuff, try adjusting the rear brakes. It is very common for the rears not to self adjust and to cause a low brake pedal.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Soft brakes [message #106299 is a reply to message #106272] |
Sat, 20 November 2010 15:09 |
bill schurman
Messages: 97
Registered: February 2004
Karma: 0
|
Member |
|
|
Thanks, Ken, will do whenever warm weather gets here (May?, June?).
William S. Schurman
P.O. 773325
Steamboat Springs, CO at the foot of Rabbit Ears Pass
970-846-4212
> To: gmclist@temp.gmcnet.org
> From: n9cv@comcast.net
> Date: Sat, 20 Nov 2010 04:13:15 -0600
> Subject: Re: [GMCnet] Soft brakes
>
>
>
> bill schurman wrote on Fri, 19 November 2010 13:09
> > My coach is safely stored inside for the winter, however last Fall I noticed that my brakes were soft to the point the my foot was to the floor on the brake pedal to stop. My front and rear shoes are fine, my brake lines are new (within three years); my lines were professionally bled; and, the fluid level is fine. Other things to consider ? Thanks in advance.
> >
> >
> > William S. Schurman
> > P.O. 773325
> > Steamboat Springs, CO at the foot of Rabbit Ears Pass
> > 970-846-4212
>
> Before you get carried away replacing stuff, try adjusting the rear brakes. It is very common for the rears not to self adjust and to cause a low brake pedal.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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