Fist major trip since rebuilder.

J

jim kanomata1

New member
Dec 31, 2006
9,932
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Be sure and flush the old brake fluid as the moisture will turn into steam
and end up with no brakes when things heat up

> What Johnny says. Better to pulse the brakes at higher pressure and shorter
> intervals than constant application.
> And as Bill states. Manny says tranny for go and brakes for stop. If the
> hill super long and steep and the brakes become over taxed you really ha e
> no other choice than to use the trans for engine braking. I would avoid
> that as a matter of habit but I’d rather use the trans to slow down than
> fly off a corner because my brakes have boiled.
>
> Sully
> 77 eleganza 2
> Bellevue
>

>
> > Manny rebuilt my trans and told me to be easy on it.
> > I live in the hills and cannot rely on brakes alone.
> > So I use a combination of driving slow downhill in 2nd gear
> > and also pumping the brakes. I never exceed 40MPH in 2nd.
> > So far, so good.
> >
> > Best Regards
> > --
> > Bill Wevers GMC49ers, GMC Western States
> > 1975 Glenbrook - Manny Powerdrive, OneTon
> > 455 F Block, G heads
> > San Jose
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
> Be sure and flush the old brake fluid as the moisture will turn into steam
> and end up with no brakes when things heat up

Also use DOT 4 brake fluid when you flush it. ($5.00 a quart at Walmart) It is compatible with the DOT 3 that you probably already have in the
system but boils at a higher temperature. There are other fluids the boil at even higher temps but for now DOT 4 is better than DOT 3 and is
backwards compatible. DO NOT USE DOT 5.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
One thing I do is to remove the brake fluid with a turkey baster every oil change and refill with new.
Not as good as bleeding but a lot easier and helps keep the moisture at bay.

--
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
 
The old knowledge still applies here. Oil floats on top of water. Or brake
fluid for that matter. So, the water winds up in the calipers, and wheel
cylinders. Bleeding the system is the only reliable way to get it out of
there. Every couple of years in normal humidity, more often in high
humidity.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> One thing I do is to remove the brake fluid with a turkey baster every oil
> change and refill with new.
> Not as good as bleeding but a lot easier and helps keep the moisture at
> bay.
>
> --
> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Brake fluid will adsorb an amazing amount of water. However when heated the water will vaporize and cause brake failure as it compresses. So, as Jim points out the only solution is to bleed the brakes and replace the fluid with new.

Emery Stora
77 Kingsley
Frederick, CO

>
> The old knowledge still applies here. Oil floats on top of water. Or brake
> fluid for that matter. So, the water winds up in the calipers, and wheel
> cylinders. Bleeding the system is the only reliable way to get it out of
> there. Every couple of years in normal humidity, more often in high
> humidity.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>

>>
>> One thing I do is to remove the brake fluid with a turkey baster every oil
>> change and refill with new.
>> Not as good as bleeding but a lot easier and helps keep the moisture at
>> bay.
>>
>> --
>> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Jim,

Glycol-ether (DOT 3, 4, and 5.1) brake fluids are hygroscopic (water absorbing), which means they absorb moisture from the
atmosphere under normal humidity levels. Therefore it's best to replace it regularly.

I use ATE brake fluid from Germany which as far a I have been able to find has the highest dry and wet boiling points of all the
fluids available. They say theirs is good for three years.

http://www.ate-brakes.com/products/brake-fluids/

BTW if a GMC owner has one of those neat pressure bleeders made by some guy up in Oregon, it's a piece of cake!

http://www.gmcmotorhomemarketplace.com/jhupy/

:-)

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of James Hupy
Sent: Wednesday, April 18, 2018 3:02 PM
To: gmclist
Subject: Re: [GMCnet] Fist major trip since rebuilder.

The old knowledge still applies here. Oil floats on top of water. Or brake
fluid for that matter. So, the water winds up in the calipers, and wheel
cylinders. Bleeding the system is the only reliable way to get it out of
there. Every couple of years in normal humidity, more often in high
humidity.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
 
Thanks for the plug, Rob. Personal experience with brake fluid here in wet,
rainy, Oregon has taught me to change it more often than what GMC says.
Houston area with high humidity should be similar. The old colored dot 3
sure was handy for flushing systems.
Sorry to have missed the Tuscon rally. Lot of people there I wanted to
see.
Jim Hupy
Salem, Or

> Jim,
>
> Glycol-ether (DOT 3, 4, and 5.1) brake fluids are hygroscopic (water
> absorbing), which means they absorb moisture from the
> atmosphere under normal humidity levels. Therefore it's best to replace it
> regularly.
>
> I use ATE brake fluid from Germany which as far a I have been able to find
> has the highest dry and wet boiling points of all the
> fluids available. They say theirs is good for three years.
>
> http://www.ate-brakes.com/products/brake-fluids/
>
> BTW if a GMC owner has one of those neat pressure bleeders made by some
> guy up in Oregon, it's a piece of cake!
>
> http://www.gmcmotorhomemarketplace.com/jhupy/
>
> :-)
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
>
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces] On Behalf Of James
> Hupy
> Sent: Wednesday, April 18, 2018 3:02 PM
> To: gmclist
> Subject: Re: [GMCnet] Fist major trip since rebuilder.
>
> The old knowledge still applies here. Oil floats on top of water. Or brake
> fluid for that matter. So, the water winds up in the calipers, and wheel
> cylinders. Bleeding the system is the only reliable way to get it out of
> there. Every couple of years in normal humidity, more often in high
> humidity.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
To Jim H.:
And a lot of us that wanted to see/meet you. Maybe next GMCMI event In Iowa in fall?
Mike/The Corvair a holic

Sent from my iPhone

>
> Brake fluid will adsorb an amazing amount of water. However when heated the water will vaporize and cause brake failure as it compresses. So, as Jim points out the only solution is to bleed the brakes and replace the fluid with new.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>

>>
>> The old knowledge still applies here. Oil floats on top of water. Or brake
>> fluid for that matter. So, the water winds up in the calipers, and wheel
>> cylinders. Bleeding the system is the only reliable way to get it out of
>> there. Every couple of years in normal humidity, more often in high
>> humidity.
>> Jim Hupy
>> Salem, Or
>> 78 GMC ROYALE 403
>>

>>>
>>> One thing I do is to remove the brake fluid with a turkey baster every oil
>>> change and refill with new.
>>> Not as good as bleeding but a lot easier and helps keep the moisture at
>>> bay.
>>>
>>> --
>>> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
You're welcome!

Yep, another demonstration of government incompetence; they made the Blue ATE fluid illegal to sell because it looked like silicone
base brake fluid (it's purple) because people might be confused THEN created DOT 5.1 which is glycol based - NO ONE would confuse
that as being compatible with DOT 5 - WOULD THEY? NAH!

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of James Hupy
Sent: Wednesday, April 18, 2018 3:33 PM
To: gmclist
Subject: Re: [GMCnet] Fist major trip since rebuilder.

Thanks for the plug, Rob. Personal experience with brake fluid here in wet,
rainy, Oregon has taught me to change it more often than what GMC says.
Houston area with high humidity should be similar. The old colored dot 3
sure was handy for flushing systems.
Sorry to have missed the Tuscon rally. Lot of people there I wanted to
see.
Jim Hupy
Salem, Or
 
Where do you think all of that recalled Blue ATE went? I heard Canada.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Don't know. Sure was handy when flushing systems though. What color is
aircraft fluid these days, is it dot 3 or dot 4?
Jim Hupy
Salem, Or.

> Where do you think all of that recalled Blue ATE went? I heard Canada.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Sixteen 1 litre cans wound up in my storage unit in Houston. :-)

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Ken Burton
Sent: Thursday, April 19, 2018 8:31 AM
To: gmclist
Subject: Re: [GMCnet] Fist major trip since rebuilder.

Where do you think all of that recalled Blue ATE went? I heard Canada.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
> Hey Rob
> this must be a US thing seems we can get green dot 4 from Valvoline here
> https://www.valvoline.com/en-australia/our-products/performance-chemicals/valvoline-super-performance-dot-4-brake-fluid

Trevor,

It is a US DOT thing.
Some bespectacled bureaucrat decided that DOT 4 shall only be one color.
So, that is all that is allowed here.
The truly great part is that while different colors for different types are required, there is no required color difference between DOT5 and DOT5.1.
DOT5 is synthetic and DOT5.1 is just a higher temperature version of the old stuff and the two are completely in-compatible.

Matt

--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
> Don't know. Sure was handy when flushing systems though. What color is
> aircraft fluid these days, is it dot 3 or dot 4?
> Jim Hupy
> Salem, Or.

Aircraft brakes usually use MIL spec 5606A or 5606H hydraulic fluid. 5606H is suppose to be cleaner. It is red and not similar to DOT the stuff. I
have not investigated what it really is, but I have read that one is mineral based (petroleum) and the other is vegetable based. I have heard of
people using Dexron III in aircraft brakes. I do not think the FAA approves of it's use. I have a gallon can of it that I have had for years. It
does not attract water like the DOT stuff so we seldom flush the systems. It does not peel paint like the DOT stuff. Small aircraft do not use
brakes much so we seldom work on them.

Large aircraft with heavy braking loads could be an entirely different story,
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
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