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76 Birch air conditioning - I'm going in

ES
Emery Stora
Sun, Jul 18, 2021 2:20 PM

Jon
How would it be a $40 charge. If you use the recommended 3 cans at $6.99 per can it would be a $20.97 charge?  If you put in $40 worth you are overcharging the system.

Emery STORA

On Jul 18, 2021, at 7:36 AM, dave silva admin@oldrv.net wrote:

lqqkatjon wrote on Sun, 18 July 2021 07:55

Dave,

You are gambling with $40 worth of duracool.

Then pop on a can,  fire up engine.  Short out the “high” pressure switch plug so compressor kicks on and let it take that can add the others
and then start watching pressures.  Get someone to get the rpms up.

Thanks, that's the info i was looking for.

It actually held vacuum for a long time, like overnight.

--
Dave & Ellen Silva
Hertford, NC

76  Birchaven, 1-ton and other stuff

Currently planning the Great american Road Trip Summer 2021

It's gonna take a lot of Adderall to get this thing right.


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Jon How would it be a $40 charge. If you use the recommended 3 cans at $6.99 per can it would be a $20.97 charge? If you put in $40 worth you are overcharging the system. Emery STORA > On Jul 18, 2021, at 7:36 AM, dave silva <admin@oldrv.net> wrote: > > lqqkatjon wrote on Sun, 18 July 2021 07:55 >> Dave, >> >> You are gambling with $40 worth of duracool. >> >> Then pop on a can, fire up engine. Short out the “high” pressure switch plug so compressor kicks on and let it take that can add the others >> and then start watching pressures. Get someone to get the rpms up. > > Thanks, that's the info i was looking for. > > It actually held vacuum for a long time, like overnight. > > > -- > Dave & Ellen Silva > Hertford, NC > > 76 Birchaven, 1-ton and other stuff > > Currently planning the Great american Road Trip Summer 2021 > > It's gonna take a lot of Adderall to get this thing right. > > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options:
DS
Dave Stragand
Sun, Jul 18, 2021 2:31 PM

One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool.  https://www.mastercool.com/ /91490https://www.mastercool.com/product/91490/

-Dave
1978 Transmode near Pittsburgh

On Jul 18, 2021, at 8:56 AM, Jon Roche lqqkatjon@gmail.com wrote:

This time i think i might know where our leak might be. (Valve core).  So will find one and try that.

One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool. https://www.mastercool.com/ /91490<https://www.mastercool.com/product/91490/> -Dave 1978 Transmode near Pittsburgh On Jul 18, 2021, at 8:56 AM, Jon Roche <lqqkatjon@gmail.com> wrote: This time i think i might know where our leak might be. (Valve core). So will find one and try that.
JR
Jon Roche
Sun, Jul 18, 2021 3:10 PM

3 cans of genuine duracool were just dropped on my doorstep yesterday.  I am going to evacuate the “frostycool 12a”
I have a case or more left if frostycool.

My new vintage air setup seems to tend to blow not as cold over time.  Not sure why,  i have adjusted charge up and down.    I dont think it is
freezing up, with looking in with boroscope i dont  see any frost problem.

Friend who does home hvac work for a living, but also had done gmc air, claims to only use genuine duracool and he experienced poor cooling from
another non-duracool r12a, and now will only reccomend genuine duracool.

The frostycool seems to work well for others vehicles and my friend ed’s stock gmc.  So the non-scientific opinion is difference on how the
mixtures effect pressures for the expansion valve.

So for $40, I am going to see if genuine duracool works better.    I can report after next week.

$6.99 a can.  X3.  + $10.66 shipping was $37.65.  I rounded up.

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/

3 cans of genuine duracool were just dropped on my doorstep yesterday. I am going to evacuate the “frostycool 12a” I have a case or more left if frostycool. My new vintage air setup seems to tend to blow not as cold over time. Not sure why, i have adjusted charge up and down. I dont think it is freezing up, with looking in with boroscope i dont see any frost problem. Friend who does home hvac work for a living, but also had done gmc air, claims to only use genuine duracool and he experienced poor cooling from another non-duracool r12a, and now will only reccomend genuine duracool. The frostycool seems to work well for others vehicles and my friend ed’s stock gmc. So the non-scientific opinion is difference on how the mixtures effect pressures for the expansion valve. So for $40, I am going to see if genuine duracool works better. I can report after next week. $6.99 a can. X3. + $10.66 shipping was $37.65. I rounded up. -- Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/
ES
Emery Stora
Sun, Jul 18, 2021 5:30 PM

It’s amazing how much shipping adds to the cost nowadays!

Emery STORA

On Jul 18, 2021, at 9:10 AM, Jon Roche lqqkatjon@gmail.com wrote:

3 cans of genuine duracool were just dropped on my doorstep yesterday.  I am going to evacuate the “frostycool 12a”
I have a case or more left if frostycool.

My new vintage air setup seems to tend to blow not as cold over time.  Not sure why,  i have adjusted charge up and down.    I dont think it is
freezing up, with looking in with boroscope i dont  see any frost problem.

Friend who does home hvac work for a living, but also had done gmc air, claims to only use genuine duracool and he experienced poor cooling from
another non-duracool r12a, and now will only reccomend genuine duracool.

The frostycool seems to work well for others vehicles and my friend ed’s stock gmc.  So the non-scientific opinion is difference on how the
mixtures effect pressures for the expansion valve.

So for $40, I am going to see if genuine duracool works better.    I can report after next week.

$6.99 a can.  X3.  + $10.66 shipping was $37.65.  I rounded up.

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/


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It’s amazing how much shipping adds to the cost nowadays! Emery STORA > On Jul 18, 2021, at 9:10 AM, Jon Roche <lqqkatjon@gmail.com> wrote: > > 3 cans of genuine duracool were just dropped on my doorstep yesterday. I am going to evacuate the “frostycool 12a” > I have a case or more left if frostycool. > > My new vintage air setup seems to tend to blow not as cold over time. Not sure why, i have adjusted charge up and down. I dont think it is > freezing up, with looking in with boroscope i dont see any frost problem. > > Friend who does home hvac work for a living, but also had done gmc air, claims to only use genuine duracool and he experienced poor cooling from > another non-duracool r12a, and now will only reccomend genuine duracool. > > The frostycool seems to work well for others vehicles and my friend ed’s stock gmc. So the non-scientific opinion is difference on how the > mixtures effect pressures for the expansion valve. > > So for $40, I am going to see if genuine duracool works better. I can report after next week. > > > > $6.99 a can. X3. + $10.66 shipping was $37.65. I rounded up. > > > > -- > Jon Roche > 75 palm beach > EBL EFI, manny headers, Micro Level, rebuilt most of coach now. > St. Cloud, MN > http://lqqkatjon.blogspot.com/ > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options:
DC
D C _Mac_ Macdonald
Sun, Jul 18, 2021 8:53 PM

Is/are there some recommended source(s) for that tool?

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: Dave Stragand dave@stragand.com
Sent: Sunday, July 18, 2021 09:31
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in

One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool.  https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2F&data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=hpddhYPew7Uh4qSeym6v0b4Fwdjv2BH2db2Rdz0wMG8%3D&reserved=0 /91490https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=qycsCMnx35avgqudgXgphF6hj7O6DIH%2BgkTs2ARhwYg%3D&amp;reserved=0

-Dave
1978 Transmode near Pittsburgh

Is/are there some recommended source(s) for that tool? 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: Dave Stragand <dave@stragand.com> Sent: Sunday, July 18, 2021 09:31 To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool. https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2F&amp;data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=hpddhYPew7Uh4qSeym6v0b4Fwdjv2BH2db2Rdz0wMG8%3D&amp;reserved=0 /91490<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=qycsCMnx35avgqudgXgphF6hj7O6DIH%2BgkTs2ARhwYg%3D&amp;reserved=0> -Dave 1978 Transmode near Pittsburgh
ES
Emery Stora
Sun, Jul 18, 2021 11:04 PM

Check Amazon. They have them on their site.
Check for “ valve core replacement tool”

Emery STORA

On Jul 18, 2021, at 2:53 PM, D C Mac Macdonald k2gkk@hotmail.com wrote:

Is/are there some recommended source(s) for that tool?

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: Dave Stragand dave@stragand.com
Sent: Sunday, July 18, 2021 09:31
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in

One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool.  https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2F&data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=hpddhYPew7Uh4qSeym6v0b4Fwdjv2BH2db2Rdz0wMG8%3D&reserved=0 /91490https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=qycsCMnx35avgqudgXgphF6hj7O6DIH%2BgkTs2ARhwYg%3D&amp;reserved=0

-Dave
1978 Transmode near Pittsburgh


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Unsubscribe or Change List Options:

Check Amazon. They have them on their site. Check for “ valve core replacement tool” Emery STORA > On Jul 18, 2021, at 2:53 PM, D C _Mac_ Macdonald <k2gkk@hotmail.com> wrote: > > Is/are there some recommended source(s) for that tool? > > 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: Dave Stragand <dave@stragand.com> > Sent: Sunday, July 18, 2021 09:31 > To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> > Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in > > One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool. https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2F&amp;data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=hpddhYPew7Uh4qSeym6v0b4Fwdjv2BH2db2Rdz0wMG8%3D&amp;reserved=0 /91490<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7Ce2bb8618b05644fc467f08d949fa2daa%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622161120648018%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=qycsCMnx35avgqudgXgphF6hj7O6DIH%2BgkTs2ARhwYg%3D&amp;reserved=0> > > -Dave > 1978 Transmode near Pittsburgh > > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options:
DC
D C _Mac_ Macdonald
Mon, Jul 19, 2021 2:24 AM

I wonder what the difference is between the 91490 and 81490?
81490 specifies for R134 and has two "nozzle" attachment fittings
and 941190 has just one.  Not much difference in price.

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


From: Emery Stora via Gmclist gmclist@list.gmcnet.org
Sent: Sunday, July 18, 2021 18:04
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Cc: Emery Stora emerystora@icloud.com
Subject: [GMCnet] Re: 76 Birch air conditioning

Check Amazon. They have them on their site.
Check for “ valve core replacement tool”

Emery STORA

On Jul 18, 2021, at 2:53 PM, D C Mac Macdonald k2gkk@hotmail.com wrote:

Is/are there some recommended source(s) for that tool?

D C "Mac" Macdonald
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach


From: Dave Stragand dave@stragand.com
Sent: Sunday, July 18, 2021 09:31
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in

One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool.  (https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&data=04%7C01%7C%7C94da1737a311480f348508d94a405f62%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622462597584914%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=1d6PZt%2BMfOtmAAMn317FdIbtfnkwL4BgwCPamT4te6g%3D&reserved=0)

-Dave
1978 Transmode near Pittsburgh

I wonder what the difference is between the 91490 and 81490? 81490 specifies for R134 and has two "nozzle" attachment fittings and 941190 has just one. Not much difference in price. D C "Mac" Macdonald USAF and FAA, Retired Member GMCMI & Classics Oklahoma City, OK "The Money Pit" TZE166V101966 '76 ex-Palm Beach k2gkk + hotmail dot com ________________________________ From: Emery Stora via Gmclist <gmclist@list.gmcnet.org> Sent: Sunday, July 18, 2021 18:04 To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> Cc: Emery Stora <emerystora@icloud.com> Subject: [GMCnet] Re: 76 Birch air conditioning Check Amazon. They have them on their site. Check for “ valve core replacement tool” Emery STORA > On Jul 18, 2021, at 2:53 PM, D C _Mac_ Macdonald <k2gkk@hotmail.com> wrote: > > Is/are there some recommended source(s) for that tool? > > D C "Mac" Macdonald > Oklahoma City, OK > "The Money Pit" > TZE166V101966 > '76 ex-Palm Beach > ________________________________ > From: Dave Stragand <dave@stragand.com> > Sent: Sunday, July 18, 2021 09:31 > To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> > Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in > > One of my favorite tools is the Mastercool 91490 Schrader valve core installer tool. It allows you to change a valve core while maintaining pressure in the system. I’ve used it for more than a few repairs and for some reason I am just fascinated by the ingenuity of the tool. (https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7C94da1737a311480f348508d94a405f62%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622462597584914%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=1d6PZt%2BMfOtmAAMn317FdIbtfnkwL4BgwCPamT4te6g%3D&amp;reserved=0) > > -Dave > 1978 Transmode near Pittsburgh
JK
Jim Kanomata
Mon, Jul 19, 2021 2:50 AM

The New fittings are designed to work with All the new fittings for 134.
It just screws on to the old valve so the new fitting will work and also
indicates that the unit has the 134 coolant in the system.

On Sun, Jul 18, 2021 at 7:24 PM D C Mac Macdonald k2gkk@hotmail.com
wrote:

I wonder what the difference is between the 91490 and 81490?
81490 specifies for R134 and has two "nozzle" attachment fittings
and 941190 has just one.  Not much difference in price.

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


From: Emery Stora via Gmclist gmclist@list.gmcnet.org
Sent: Sunday, July 18, 2021 18:04
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Cc: Emery Stora emerystora@icloud.com
Subject: [GMCnet] Re: 76 Birch air conditioning

Check Amazon. They have them on their site.
Check for “ valve core replacement tool”

Emery STORA

On Jul 18, 2021, at 2:53 PM, D C Mac Macdonald k2gkk@hotmail.com

wrote:

Is/are there some recommended source(s) for that tool?

D C "Mac" Macdonald
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach


From: Dave Stragand dave@stragand.com
Sent: Sunday, July 18, 2021 09:31
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in

One of my favorite tools is the Mastercool 91490 Schrader valve core

-Dave
1978 Transmode near Pittsburgh


GMCnet mailing list
Unsubscribe or Change List Options:

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502

The New fittings are designed to work with All the new fittings for 134. It just screws on to the old valve so the new fitting will work and also indicates that the unit has the 134 coolant in the system. On Sun, Jul 18, 2021 at 7:24 PM D C _Mac_ Macdonald <k2gkk@hotmail.com> wrote: > I wonder what the difference is between the 91490 and 81490? > 81490 specifies for R134 and has two "nozzle" attachment fittings > and 941190 has just one. Not much difference in price. > > D C "Mac" Macdonald > USAF and FAA, Retired > Member GMCMI & Classics > Oklahoma City, OK > "The Money Pit" > TZE166V101966 > '76 ex-Palm Beach > k2gkk + hotmail dot com > ________________________________ > From: Emery Stora via Gmclist <gmclist@list.gmcnet.org> > Sent: Sunday, July 18, 2021 18:04 > To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> > Cc: Emery Stora <emerystora@icloud.com> > Subject: [GMCnet] Re: 76 Birch air conditioning > > Check Amazon. They have them on their site. > Check for “ valve core replacement tool” > > Emery STORA > > > On Jul 18, 2021, at 2:53 PM, D C _Mac_ Macdonald <k2gkk@hotmail.com> > wrote: > > > > Is/are there some recommended source(s) for that tool? > > > > D C "Mac" Macdonald > > Oklahoma City, OK > > "The Money Pit" > > TZE166V101966 > > '76 ex-Palm Beach > > ________________________________ > > From: Dave Stragand <dave@stragand.com> > > Sent: Sunday, July 18, 2021 09:31 > > To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> > > Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in > > > > One of my favorite tools is the Mastercool 91490 Schrader valve core > installer tool. It allows you to change a valve core while maintaining > pressure in the system. I’ve used it for more than a few repairs and for > some reason I am just fascinated by the ingenuity of the tool. ( > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7C94da1737a311480f348508d94a405f62%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622462597584914%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=1d6PZt%2BMfOtmAAMn317FdIbtfnkwL4BgwCPamT4te6g%3D&amp;reserved=0 > ) > > > > -Dave > > 1978 Transmode near Pittsburgh > > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: > -- Jim Kanomata ASE Applied/GMC, Newark,CA jimk@appliedairfilters.com http://www.gmcrvparts.com 1-800-752-7502
DC
D C _Mac_ Macdonald
Mon, Jul 19, 2021 3:03 AM

New version okay for all refrigerants?

Mac in OKC

Sent from my iPad

On Jul 18, 2021, at 21:50, Jim Kanomata jimkanomata@gmail.com wrote:

The New fittings are designed to work with All the new fittings for 134.
It just screws on to the old valve so the new fitting will work and also
indicates that the unit has the 134 coolant in the system.

On Sun, Jul 18, 2021 at 7:24 PM D C Mac Macdonald k2gkk@hotmail.com
wrote:

I wonder what the difference is between the 91490 and 81490?
81490 specifies for R134 and has two "nozzle" attachment fittings
and 941190 has just one.  Not much difference in price.

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


From: Emery Stora via Gmclist gmclist@list.gmcnet.org
Sent: Sunday, July 18, 2021 18:04
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Cc: Emery Stora emerystora@icloud.com
Subject: [GMCnet] Re: 76 Birch air conditioning

Check Amazon. They have them on their site.
Check for “ valve core replacement tool”

Emery STORA

On Jul 18, 2021, at 2:53 PM, D C Mac Macdonald k2gkk@hotmail.com

wrote:

Is/are there some recommended source(s) for that tool?

D C "Mac" Macdonald
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach


From: Dave Stragand dave@stragand.com
Sent: Sunday, July 18, 2021 09:31
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in

One of my favorite tools is the Mastercool 91490 Schrader valve core

-Dave
1978 Transmode near Pittsburgh


GMCnet mailing list
Unsubscribe or Change List Options:

New version okay for all refrigerants? Mac in OKC Sent from my iPad > On Jul 18, 2021, at 21:50, Jim Kanomata <jimkanomata@gmail.com> wrote: > > The New fittings are designed to work with All the new fittings for 134. > It just screws on to the old valve so the new fitting will work and also > indicates that the unit has the 134 coolant in the system. > > On Sun, Jul 18, 2021 at 7:24 PM D C _Mac_ Macdonald <k2gkk@hotmail.com> > wrote: > >> I wonder what the difference is between the 91490 and 81490? >> 81490 specifies for R134 and has two "nozzle" attachment fittings >> and 941190 has just one. Not much difference in price. >> >> D C "Mac" Macdonald >> USAF and FAA, Retired >> Member GMCMI & Classics >> Oklahoma City, OK >> "The Money Pit" >> TZE166V101966 >> '76 ex-Palm Beach >> k2gkk + hotmail dot com >> ________________________________ >> From: Emery Stora via Gmclist <gmclist@list.gmcnet.org> >> Sent: Sunday, July 18, 2021 18:04 >> To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> >> Cc: Emery Stora <emerystora@icloud.com> >> Subject: [GMCnet] Re: 76 Birch air conditioning >> >> Check Amazon. They have them on their site. >> Check for “ valve core replacement tool” >> >> Emery STORA >> >>> On Jul 18, 2021, at 2:53 PM, D C _Mac_ Macdonald <k2gkk@hotmail.com> >> wrote: >>> >>> Is/are there some recommended source(s) for that tool? >>> >>> D C "Mac" Macdonald >>> Oklahoma City, OK >>> "The Money Pit" >>> TZE166V101966 >>> '76 ex-Palm Beach >>> ________________________________ >>> From: Dave Stragand <dave@stragand.com> >>> Sent: Sunday, July 18, 2021 09:31 >>> To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> >>> Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in >>> >>> One of my favorite tools is the Mastercool 91490 Schrader valve core >> installer tool. It allows you to change a valve core while maintaining >> pressure in the system. I’ve used it for more than a few repairs and for >> some reason I am just fascinated by the ingenuity of the tool. ( >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7C85b0bf59573640478f8608d94a5fff19%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622598426513677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=1mYU015lkxVVVgqxxsBbifSVQiMa68al4MUHDLhnmLo%3D&amp;reserved=0 >> ) >>> >>> -Dave >>> 1978 Transmode near Pittsburgh >> >> _______________________________________________ >> GMCnet mailing list >> Unsubscribe or Change List Options: >> > > > -- > Jim Kanomata ASE > Applied/GMC, Newark,CA > jimk@appliedairfilters.com > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.gmcrvparts.com%2F&amp;data=04%7C01%7C%7C85b0bf59573640478f8608d94a5fff19%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622598426513677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=5IUyvkbpWmQ0%2BAT0ybVI%2FKdw0IszvFlzBrfGhIQfqNs%3D&amp;reserved=0 > 1-800-752-7502 > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options:
JK
Jim Kanomata
Mon, Jul 19, 2021 4:43 AM

As long as they are recognized by the HVAC refrigeration groupes.
In other words , I do not know for sure.
We do not want to mix different refrigerants as they are reused.

On Sun, Jul 18, 2021 at 8:03 PM D C Mac Macdonald k2gkk@hotmail.com
wrote:

New version okay for all refrigerants?

Mac in OKC

Sent from my iPad

On Jul 18, 2021, at 21:50, Jim Kanomata jimkanomata@gmail.com wrote:

The New fittings are designed to work with All the new fittings for 134.
It just screws on to the old valve so the new fitting will work and also
indicates that the unit has the 134 coolant in the system.

On Sun, Jul 18, 2021 at 7:24 PM D C Mac Macdonald k2gkk@hotmail.com
wrote:

I wonder what the difference is between the 91490 and 81490?
81490 specifies for R134 and has two "nozzle" attachment fittings
and 941190 has just one.  Not much difference in price.

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


From: Emery Stora via Gmclist gmclist@list.gmcnet.org
Sent: Sunday, July 18, 2021 18:04
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Cc: Emery Stora emerystora@icloud.com
Subject: [GMCnet] Re: 76 Birch air conditioning

Check Amazon. They have them on their site.
Check for “ valve core replacement tool”

Emery STORA

On Jul 18, 2021, at 2:53 PM, D C Mac Macdonald k2gkk@hotmail.com

wrote:

Is/are there some recommended source(s) for that tool?

D C "Mac" Macdonald
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach


From: Dave Stragand dave@stragand.com
Sent: Sunday, July 18, 2021 09:31
To: gmclist@list.gmcnet.org gmclist@list.gmcnet.org
Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in

One of my favorite tools is the Mastercool 91490 Schrader valve core

installer tool. It allows you to change a valve core while maintaining
pressure in the system. I’ve used it for more than a few repairs and for
some reason I am just fascinated by the ingenuity of the tool.  (

)

-Dave
1978 Transmode near Pittsburgh


GMCnet mailing list
Unsubscribe or Change List Options:

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk@appliedairfilters.com

1-800-752-7502


GMCnet mailing list
Unsubscribe or Change List Options:


GMCnet mailing list
Unsubscribe or Change List Options:

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502

As long as they are recognized by the HVAC refrigeration groupes. In other words , I do not know for sure. We do not want to mix different refrigerants as they are reused. On Sun, Jul 18, 2021 at 8:03 PM D C _Mac_ Macdonald <k2gkk@hotmail.com> wrote: > New version okay for all refrigerants? > > Mac in OKC > > Sent from my iPad > > > On Jul 18, 2021, at 21:50, Jim Kanomata <jimkanomata@gmail.com> wrote: > > > > The New fittings are designed to work with All the new fittings for 134. > > It just screws on to the old valve so the new fitting will work and also > > indicates that the unit has the 134 coolant in the system. > > > > On Sun, Jul 18, 2021 at 7:24 PM D C _Mac_ Macdonald <k2gkk@hotmail.com> > > wrote: > > > >> I wonder what the difference is between the 91490 and 81490? > >> 81490 specifies for R134 and has two "nozzle" attachment fittings > >> and 941190 has just one. Not much difference in price. > >> > >> D C "Mac" Macdonald > >> USAF and FAA, Retired > >> Member GMCMI & Classics > >> Oklahoma City, OK > >> "The Money Pit" > >> TZE166V101966 > >> '76 ex-Palm Beach > >> k2gkk + hotmail dot com > >> ________________________________ > >> From: Emery Stora via Gmclist <gmclist@list.gmcnet.org> > >> Sent: Sunday, July 18, 2021 18:04 > >> To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> > >> Cc: Emery Stora <emerystora@icloud.com> > >> Subject: [GMCnet] Re: 76 Birch air conditioning > >> > >> Check Amazon. They have them on their site. > >> Check for “ valve core replacement tool” > >> > >> Emery STORA > >> > >>> On Jul 18, 2021, at 2:53 PM, D C _Mac_ Macdonald <k2gkk@hotmail.com> > >> wrote: > >>> > >>> Is/are there some recommended source(s) for that tool? > >>> > >>> D C "Mac" Macdonald > >>> Oklahoma City, OK > >>> "The Money Pit" > >>> TZE166V101966 > >>> '76 ex-Palm Beach > >>> ________________________________ > >>> From: Dave Stragand <dave@stragand.com> > >>> Sent: Sunday, July 18, 2021 09:31 > >>> To: gmclist@list.gmcnet.org <gmclist@list.gmcnet.org> > >>> Subject: [GMCnet] Re: 76 Birch air conditioning - I'm going in > >>> > >>> One of my favorite tools is the Mastercool 91490 Schrader valve core > >> installer tool. It allows you to change a valve core while maintaining > >> pressure in the system. I’ve used it for more than a few repairs and for > >> some reason I am just fascinated by the ingenuity of the tool. ( > >> > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mastercool.com%2Fproduct%2F91490%2F&amp;data=04%7C01%7C%7C85b0bf59573640478f8608d94a5fff19%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622598426513677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=1mYU015lkxVVVgqxxsBbifSVQiMa68al4MUHDLhnmLo%3D&amp;reserved=0 > >> ) > >>> > >>> -Dave > >>> 1978 Transmode near Pittsburgh > >> > >> _______________________________________________ > >> GMCnet mailing list > >> Unsubscribe or Change List Options: > >> > > > > > > -- > > Jim Kanomata ASE > > Applied/GMC, Newark,CA > > jimk@appliedairfilters.com > > > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.gmcrvparts.com%2F&amp;data=04%7C01%7C%7C85b0bf59573640478f8608d94a5fff19%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637622598426513677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=5IUyvkbpWmQ0%2BAT0ybVI%2FKdw0IszvFlzBrfGhIQfqNs%3D&amp;reserved=0 > > 1-800-752-7502 > > _______________________________________________ > > GMCnet mailing list > > Unsubscribe or Change List Options: > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: > -- Jim Kanomata ASE Applied/GMC, Newark,CA jimk@appliedairfilters.com http://www.gmcrvparts.com 1-800-752-7502