Required air pressure for quad bag rear suspension

WE supply on ours and Coop units the DOT fittings that are used on the Big
rigs, so if installed carefully they will hold the air long enough.
You also need to understand that there is no such thing as a Perfict work
on anything.

>
>> OK Gordon. I was not picking on you. I just did not understand why all
>> the concern over a 7 C temperature change.
>>
>> You have an interesting problem there. It only leaks when cold below
>> freezing. I have no ideas on the cause for that. I agree that if it leaked
>> when the valves are shut off, that it is probably a bag leak but I also
>> have never worked on a 4 bag system so I do not understand the plumbing
>> involved.
>>
>> On the soapy water idea, How about using some windshield solvent and soap
>> mixed together? I have never tried that. Maybe that mix will not bubble.
>>
>>
>
> My left front tire will hold air all year. Except during the very cold
> days of winter. Then it will go flat. Have never found leaks with water and
> bubbles.
>
> --
> Gary W. Mills
> Livonia, MI
> . ___________
> ./_][__][] []| 1974 GMC M/H
> .*O-------OO-* Painted Desert
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
> OK Gordon. I was not picking on you. I just did not understand why all the concern over a 7 C temperature change.
>
> You have an interesting problem there. It only leaks when cold below freezing. I have no ideas on the cause for that. I agree that if it leaked
> when the valves are shut off, that it is probably a bag leak but I also have never worked on a 4 bag system so I do not understand the plumbing
> involved.
>
> On the soapy water idea, How about using some windshield solvent and soap mixed together? I have never tried that. Maybe that mix will not
> bubble.

What about using RV antifreeze with dish soap mixed into it?
--
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
 
Might be a bit of rust or dirt on the rim or even the tire! Low temps cause one or both to shrink a very small bit? Demount tire and hit both the rim and the tire bead with some fine grit sandpaper?

D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com

________________________________
From: Gmclist on behalf of Gary Mills
Sent: Saturday, February 17, 2018 10:38
To: gmclist
Subject: Re: [GMCnet] Required air pressure for quad bag rear suspension

> OK Gordon. I was not picking on you. I just did not understand why all the concern over a 7 C temperature change.
>
> You have an interesting problem there. It only leaks when cold below freezing. I have no ideas on the cause for that. I agree that if it leaked
> when the valves are shut off, that it is probably a bag leak but I also have never worked on a 4 bag system so I do not understand the plumbing
> involved.
>
> On the soapy water idea, How about using some windshield solvent and soap mixed together? I have never tried that. Maybe that mix will not bubble.
>

My left front tire will hold air all year. Except during the very cold
days of winter. Then it will go flat. Have never found leaks with water
and bubbles.

--
Gary W. Mills
Livonia, MI
. ___________
./_][__][] []| 1974 GMC M/H
.*O-------OO-* Painted Desert
 
> Might be a bit of rust or dirt on the rim or even the tire! Low temps cause one or both to shrink a very small bit? Demount tire and hit both the rim and the tire bead with some fine grit sandpaper?
>
>
> D C "Mac" Macdonald
> Amateur Radio K2GKK
> Since 30 November '53
> USAF and FAA, Retired
> Member GMCMI & Classics
> Oklahoma City, OK
> "The Money Pit"
> TZE166V101966
> '76 ex-Palm Beach
> k2gkk + hotmail dot com
>
>
>
> ________________________________
> From: Gmclist on behalf of Gary Mills
> Sent: Saturday, February 17, 2018 10:38
> To: gmclist
> Subject: Re: [GMCnet] Required air pressure for quad bag rear suspension
>

>> OK Gordon. I was not picking on you. I just did not understand why all the concern over a 7 C temperature change.
>>
>> You have an interesting problem there. It only leaks when cold below freezing. I have no ideas on the cause for that. I agree that if it leaked
>> when the valves are shut off, that it is probably a bag leak but I also have never worked on a 4 bag system so I do not understand the plumbing
>> involved.
>>
>> On the soapy water idea, How about using some windshield solvent and soap mixed together? I have never tried that. Maybe that mix will not bubble.
>>
> My left front tire will hold air all year. Except during the very cold
> days of winter. Then it will go flat. Have never found leaks with water
> and bubbles.
>
THX Mac  The last time I put a new tire on that rim.  I wire wheeled and
painted the rim. Next time I will replace the valve stem. Should work
unless there is a hair line crack in the rim somewhere.

--
Gary W. Mills
Livonia, MI
. ___________
./_][__][] []| 1974 GMC M/H
.*O-------OO-* Painted Desert
 
Make sure the rim has a R stamped on it as the old rims were not rated for
Radial tire , also the 5year rule. Sounds redicules, but based on our
customers and my experiance, it is vey valid.

>
>> Might be a bit of rust or dirt on the rim or even the tire! Low temps
>> cause one or both to shrink a very small bit? Demount tire and hit both
>> the rim and the tire bead with some fine grit sandpaper?
>>
>>
>> D C "Mac" Macdonald
>> Amateur Radio K2GKK
>> Since 30 November '53
>> USAF and FAA, Retired
>> Member GMCMI & Classics
>> Oklahoma City, OK
>> "The Money Pit"
>> TZE166V101966
>> '76 ex-Palm Beach
>> k2gkk + hotmail dot com
>>
>>
>>
>> ________________________________
>> From: Gmclist on behalf of Gary Mills <
>> daveel>
>> Sent: Saturday, February 17, 2018 10:38
>> To: gmclist
>> Subject: Re: [GMCnet] Required air pressure for quad bag rear suspension
>>

>>
>>> OK Gordon. I was not picking on you. I just did not understand why all
>>> the concern over a 7 C temperature change.
>>>
>>> You have an interesting problem there. It only leaks when cold below
>>> freezing. I have no ideas on the cause for that. I agree that if it leaked
>>> when the valves are shut off, that it is probably a bag leak but I also
>>> have never worked on a 4 bag system so I do not understand the plumbing
>>> involved.
>>>
>>> On the soapy water idea, How about using some windshield solvent and
>>> soap mixed together? I have never tried that. Maybe that mix will not
>>> bubble.
>>>
>>> My left front tire will hold air all year. Except during the very cold
>> days of winter. Then it will go flat. Have never found leaks with water
>> and bubbles.
>>
>> THX Mac The last time I put a new tire on that rim. I wire wheeled and
> painted the rim. Next time I will replace the valve stem. Should work
> unless there is a hair line crack in the rim somewhere.
>
>
> --
> Gary W. Mills
> Livonia, MI
> . ___________
> ./_][__][] []| 1974 GMC M/H
> .*O-------OO-* Painted Desert
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
If you are still running 16.5" steel rims, you more than likely have a
welded spot seeping air. CURE? find the leak and grind it and weld it, or,
replace the wheel, or replace all 7 wheels with eagle or Alcoa hub centered
alloy wheels.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

> Make sure the rim has a R stamped on it as the old rims were not rated for
> Radial tire , also the 5year rule. Sounds redicules, but based on our
> customers and my experiance, it is vey valid.
>

>

> >
> >> Might be a bit of rust or dirt on the rim or even the tire! Low temps
> >> cause one or both to shrink a very small bit? Demount tire and hit both
> >> the rim and the tire bead with some fine grit sandpaper?
> >>
> >>
> >> D C "Mac" Macdonald
> >> Amateur Radio K2GKK
> >> Since 30 November '53
> >> USAF and FAA, Retired
> >> Member GMCMI & Classics
> >> Oklahoma City, OK
> >> "The Money Pit"
> >> TZE166V101966
> >> '76 ex-Palm Beach
> >> k2gkk + hotmail dot com
> >>
> >>
> >>
> >> ________________________________
> >> From: Gmclist on behalf of Gary
> Mills <
> >> daveel>
> >> Sent: Saturday, February 17, 2018 10:38
> >> To: gmclist
> >> Subject: Re: [GMCnet] Required air pressure for quad bag rear suspension
> >>

> >>
> >>> OK Gordon. I was not picking on you. I just did not understand why
> all
> >>> the concern over a 7 C temperature change.
> >>>
> >>> You have an interesting problem there. It only leaks when cold below
> >>> freezing. I have no ideas on the cause for that. I agree that if it
> leaked
> >>> when the valves are shut off, that it is probably a bag leak but I also
> >>> have never worked on a 4 bag system so I do not understand the plumbing
> >>> involved.
> >>>
> >>> On the soapy water idea, How about using some windshield solvent and
> >>> soap mixed together? I have never tried that. Maybe that mix will not
> >>> bubble.
> >>>
> >>> My left front tire will hold air all year. Except during the very cold
> >> days of winter. Then it will go flat. Have never found leaks with water
> >> and bubbles.
> >>
> >> THX Mac The last time I put a new tire on that rim. I wire wheeled and
> > painted the rim. Next time I will replace the valve stem. Should work
> > unless there is a hair line crack in the rim somewhere.
> >
> >
> > --
> > Gary W. Mills
> > Livonia, MI
> > . ___________
> > ./_][__][] []| 1974 GMC M/H
> > .*O-------OO-* Painted Desert
> >
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
THX  Jim Hupy
I would like to get all 7 wheels replaced with eagle hub centered alloy
wheels.  I am waiting for Jim K to have the Hot Shot wheel design
reproduced.

> If you are still running 16.5" steel rims, you more than likely have a
> welded spot seeping air. CURE? find the leak and grind it and weld it, or,
> replace the wheel, or replace all 7 wheels with eagle or Alcoa hub centered
> alloy wheels.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>

>
>
> My left front tire will hold air all year. Except during the very cold
> days of winter. Then it will go flat. Have never found leaks with water
> and bubbles.
>
> THX Mac The last time I put a new tire on that rim. I wire wheeled and
> painted the rim. Next time I will replace the valve stem. Should work
> unless there is a hair line crack in the rim somewhere.
>
>
> --
> Gary W. Mills
> Livonia, MI
> . ___________
> ./_][__][] []| 1974 GMC M/H
> .*O-------OO-* Painted Desert
 
The GMC right side used to fall down at 15 degrees F. This was when I winterized it and allowed it to get cold inside as well. It was 23 degrees
inside when it was 15 outside. Before I put a block under the right rear, I learned valuable lesson about door not opening enough for me to get in and
correct the situation :lol: Could not find leak after pumping system back up while running engine and compressor. Surmised it was the supply line to
the right bag, and the control valve also leaking system air to the bag when there was enough pressure differential. Bags and system held up all the
rest of the year. Found problems next temp drop(using leak check that doesn't freeze)...PLASTICS...did not warm up engine or interior, used external
compressor for air in system. In addition to the internal valve leak, the plastic hose compression type connection for the right bag leaked when it
got that cold. Fixed the hose with warmth followed with a little bit of disassembly and rework. Still haven't found the rebuild kit for the valves,
but was informed of JR's replacements. I'm too cheap right now for new valves, and have further system mods being added on which may get incorporated
into that system. There are some compression unions under the coach that didn't leak back then, but after they got blasted with exhaust leakage last
summer (muffler explosion) they leaked to the point that the system only stayed up for about 15 minutes. Was able to stop leakage by tightening, but
reworked 2 of the connections to be sure. Those connections are not supposed to be there, I can tell by the way the hoses ended up being routed. Muff
explosion due to ignition cutoff from electrical spike must have happened to the P.O. also :? The temperature changes really affect the plastics...all
of them...


--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.
 
"I am waiting for Jim K to have the Hot Shot wheel design reproduced."

Is this a rumor or a possibility? I really like that wheel design from Alcoa and admire Eric Tanner's set on his. I would be a customer for those 8)
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.
 
Terry,

Jim K sells rebuild kits for the OEM Powerlevel valves:

http://www.appliedgmc.com/prod.itml/icOid/953

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 Terry
Sent: Wednesday, February 21, 2018 12:31 PM
To: gmclist
Subject: Re: [GMCnet] Required air pressure for quad bag rear suspension

The GMC right side used to fall down at 15 degrees F. This was when I winterized it and allowed it to get cold inside as well. It
was 23 degrees
inside when it was 15 outside. Before I put a block under the right rear, I learned valuable lesson about door not opening enough
for me to get in and
correct the situation :lol: Could not find leak after pumping system back up while running engine and compressor. Surmised it was
the supply line to
the right bag, and the control valve also leaking system air to the bag when there was enough pressure differential. Bags and system
held up all the
rest of the year. Found problems next temp drop(using leak check that doesn't freeze)...PLASTICS...did not warm up engine or
interior, used external
compressor for air in system. In addition to the internal valve leak, the plastic hose compression type connection for the right bag
leaked when it
got that cold. Fixed the hose with warmth followed with a little bit of disassembly and rework. Still haven't found the rebuild kit
for the valves,
but was informed of JR's replacements. I'm too cheap right now for new valves, and have further system mods being added on which may
get incorporated
into that system. There are some compression unions under the coach that didn't leak back then, but after they got blasted with
exhaust leakage last
summer (muffler explosion) they leaked to the point that the system only stayed up for about 15 minutes. Was able to stop leakage by
tightening, but
reworked 2 of the connections to be sure. Those connections are not supposed to be there, I can tell by the way the hoses ended up
being routed. Muff
explosion due to ignition cutoff from electrical spike must have happened to the P.O. also :? The temperature changes really affect
the plastics...all
of them...


--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Too expensive and not enough interest,

Sent from my iPhone

>
> "I am waiting for Jim K to have the Hot Shot wheel design reproduced."
>
> Is this a rumor or a possibility? I really like that wheel design from Alcoa and admire Eric Tanner's set on his. I would be a customer for those 8)
> --
> Terry Kelpien
>
> ASE Master Technician
>
> 73 Glacier 260
>
> Smithfield, Va.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
OK, thanks Jim. Thanks for the info Rob, I didn't know Jim had those kits for the valves.
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.
 
I can say we have most everything for the GMC MH.
Go to our web site and tripple click on the pictres and see better.
Our guys spend lot of time working on them for you.
WWW.appliedgmc.com

> OK, thanks Jim. Thanks for the info Rob, I didn't know Jim had those kits
> for the valves.
> --
> Terry Kelpien
>
> ASE Master Technician
>
> 73 Glacier 260
>
> Smithfield, Va.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
http://appliedgmc.com/prod.itml/icOid/953

On Wed, Feb 21, 2018 at 12:14 AM, Jim Kanomata
wrote:

> I can say we have most everything for the GMC MH.
> Go to our web site and tripple click on the pictres and see better.
> Our guys spend lot of time working on them for you.
> WWW.appliedgmc.com
>
>

>
> > OK, thanks Jim. Thanks for the info Rob, I didn't know Jim had those kits
> > for the valves.
>
 
> Too expensive and not enough interest,
>
> Sent from my iPhone
>

>>
>> "I am waiting for Jim K to have the Hot Shot wheel design reproduced."
>>
>> Is this a rumor or a possibility? I really like that wheel design from Alcoa and admire Eric Tanner's set on his. I would be a customer for those 8)
>> --
>> Terry Kelpien
>>
>> ASE Master Technician
>>
>> 73 Glacier 260
>>
>> Smithfield, Va.
Jim
How many sets of "Hot Shot" wheels would you have to sell to make it
cost effective?

--
Gary W. Mills
Livonia, MI
. ___________
./_][__][] []| 1974 GMC M/H
.*O-------OO-* Painted Desert
 
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