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stacked plate oil cooler [message #127684] Fri, 27 May 2011 19:31 Go to next message
Rickmo is currently offline  Rickmo   United States
Messages: 105
Registered: January 2011
Location: Gladwin, Michigan
Karma: 0
Senior Member
I have a stacked plate transmission cooler with 3/8 in and out. It is brand new. I am bypassing the radiator oil cooler as part of my engine rebuild. The cooler is about 10 inches square. Will this cooler work as my oil cooler? I am thinking perhaps the in and out is too small.

Thoughts???


Rick Seebeck Gladwin Michigan 1973 Canyon Lands
Re: stacked plate oil cooler [message #127692 is a reply to message #127684] Fri, 27 May 2011 20:43 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Rick, good idea to bypass the radiator cooler unless you know it is very clean. On our second engine rebuild, in 12 months, we did same with the aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6 inch. It uses the same size fittings as the oil cooler in the radiator so I am thinking they are larger than 3/8. I have an external trans cooler and it uses 5/16 hose. Seems like the engine oil cooler is a B&M.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] stacked plate oil cooler [message #127694 is a reply to message #127692] Fri, 27 May 2011 20:58 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Dan,

It was noted at the Patterson Convention during Ken Burton's presentation
about grounding the GMC that the radiator gets grounded to the engine /
transmission through the trans cooler lines. If you have a remote trans
cooler your radiator may not be grounded to the engine.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Dan Gregg
Sent: Saturday, May 28, 2011 11:43 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Rick, good idea to bypass the radiator cooler unless you know it is very
clean. On our second engine rebuild, in 12 months, we did same with the
aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6 inch.
It uses the same size fittings as the oil cooler in the radiator so I am
thinking they are larger than 3/8. I have an external trans cooler and it
uses 5/16 hose. Seems like the engine oil cooler is a B&M.
Dan


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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
Re: [GMCnet] stacked plate oil cooler [message #127696 is a reply to message #127694] Fri, 27 May 2011 21:03 Go to previous messageGo to next message
emerystora is currently offline  emerystora   United States
Messages: 4442
Registered: January 2004
Karma: 13
Senior Member
>
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Rick, good idea to bypass the radiator cooler unless you know it is very
> clean. On our second engine rebuild, in 12 months, we did same with the
> aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6 inch.
> It uses the same size fittings as the oil cooler in the radiator so I am
> thinking they are larger than 3/8. I have an external trans cooler and it
> uses 5/16 hose. Seems like the engine oil cooler is a B&M.
> Dan
>


Dan

Other than gasoline, there is nothing more flammable that might blow back onto your engine from a cracked rubber hose than hot automatic transmission fluid. Very dangerous.
I will be happy to assist you at the next rally where we see each other to replace that hose to your external cooler with some 3/8" steel lines so that you might never have that problem.

Emery Stora
77 Kingsley
Santa Fe, NM


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Re: [GMCnet] stacked plate oil cooler [message #127702 is a reply to message #127696] Fri, 27 May 2011 21:51 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Rob, One of the cooler lines remains in place from tranny to radiator.
Emery, I do have two short 5/16 hoses on the cooler I always welcome your help and advice.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: stacked plate oil cooler [message #127703 is a reply to message #127684] Fri, 27 May 2011 22:00 Go to previous messageGo to next message
Rickmo is currently offline  Rickmo   United States
Messages: 105
Registered: January 2011
Location: Gladwin, Michigan
Karma: 0
Senior Member
Good tip on the trans lines. I am wondering if the new stacked plate trans cooler that I have can be used as the engine oil cooler even though the inlet and outlet sizes are smaller than the lines that went from the filter adapter to the old cooler in the radiator.

Rick Seebeck Gladwin Michigan 1973 Canyon Lands
Re: [GMCnet] stacked plate oil cooler [message #127712 is a reply to message #127702] Sat, 28 May 2011 00:07 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
Suggest you try the #70264.
Please confirm the size of the opening.
The grounding of the radiator is very important too.
have a grounding strap that was being marketed few years ago, but now
discontinued, on my Aluminum radiator.
That seminar was really an eye opener. I thought my Ornamental eyes
got rounded out ,but lasted only for that hour.





On Fri, May 27, 2011 at 7:51 PM, Dan Gregg <gregg_dan@hotmail.com> wrote:
>
>
> Rob, One of the cooler lines remains in place from tranny to radiator.
> Emery, I do have two short 5/16 hoses on the cooler I always welcome your help and advice.
> Dan
> --
> Dan & Teri Gregg
>
> http://danandteri.blogspot.com/
>
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] stacked plate oil cooler [message #127738 is a reply to message #127694] Sat, 28 May 2011 09:50 Go to previous messageGo to next message
sgltrac is currently offline  sgltrac   United States
Messages: 2797
Registered: April 2011
Karma: 1
Senior Member
Why is it important that the radiator be grounded?

Sully
77 royale
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: "Rob Mueller" <robmueller@iinet.net.au>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Sat, 28 May 2011 11:58:30
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Dan,

It was noted at the Patterson Convention during Ken Burton's presentation
about grounding the GMC that the radiator gets grounded to the engine /
transmission through the trans cooler lines. If you have a remote trans
cooler your radiator may not be grounded to the engine.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Dan Gregg
Sent: Saturday, May 28, 2011 11:43 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Rick, good idea to bypass the radiator cooler unless you know it is very
clean. On our second engine rebuild, in 12 months, we did same with the
aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6 inch.
It uses the same size fittings as the oil cooler in the radiator so I am
thinking they are larger than 3/8. I have an external trans cooler and it
uses 5/16 hose. Seems like the engine oil cooler is a B&M.
Dan


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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.
Re: [GMCnet] stacked plate oil cooler [message #127747 is a reply to message #127738] Sat, 28 May 2011 10:42 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
Dissimilar metals joined by fluids that allow an exchange of ions
(corrosion). Grounding helps defeat that. Similar to anode/cathode
technology on boat hulls and sea water. Eats em up without it.
Jim Hupy
Salem, Or
78 GMC Royale 403

On Sat, May 28, 2011 at 7:50 AM, <sgltrac@gmail.com> wrote:

> Why is it important that the radiator be grounded?
>
> Sully
> 77 royale
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: "Rob Mueller" <robmueller@iinet.net.au>
> Sender: gmclist-bounces@temp.gmcnet.org
> Date: Sat, 28 May 2011 11:58:30
> To: <gmclist@temp.gmcnet.org>
> Reply-To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Dan,
>
> It was noted at the Patterson Convention during Ken Burton's presentation
> about grounding the GMC that the radiator gets grounded to the engine /
> transmission through the trans cooler lines. If you have a remote trans
> cooler your radiator may not be grounded to the engine.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Dan Gregg
> Sent: Saturday, May 28, 2011 11:43 AM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Rick, good idea to bypass the radiator cooler unless you know it is very
> clean. On our second engine rebuild, in 12 months, we did same with the
> aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6
> inch.
> It uses the same size fittings as the oil cooler in the radiator so I am
> thinking they are larger than 3/8. I have an external trans cooler and it
> uses 5/16 hose. Seems like the engine oil cooler is a B&M.
> Dan
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Re: [GMCnet] stacked plate oil cooler [message #127753 is a reply to message #127747] Sat, 28 May 2011 11:23 Go to previous messageGo to next message
sgltrac is currently offline  sgltrac   United States
Messages: 2797
Registered: April 2011
Karma: 1
Senior Member
Muchas gracias james

Sully
77 royale
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: James Hupy <jamesh1296@gmail.com>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Sat, 28 May 2011 08:42:57
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Dissimilar metals joined by fluids that allow an exchange of ions
(corrosion). Grounding helps defeat that. Similar to anode/cathode
technology on boat hulls and sea water. Eats em up without it.
Jim Hupy
Salem, Or
78 GMC Royale 403

On Sat, May 28, 2011 at 7:50 AM, <sgltrac@gmail.com> wrote:

> Why is it important that the radiator be grounded?
>
> Sully
> 77 royale
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: "Rob Mueller" <robmueller@iinet.net.au>
> Sender: gmclist-bounces@temp.gmcnet.org
> Date: Sat, 28 May 2011 11:58:30
> To: <gmclist@temp.gmcnet.org>
> Reply-To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Dan,
>
> It was noted at the Patterson Convention during Ken Burton's presentation
> about grounding the GMC that the radiator gets grounded to the engine /
> transmission through the trans cooler lines. If you have a remote trans
> cooler your radiator may not be grounded to the engine.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Dan Gregg
> Sent: Saturday, May 28, 2011 11:43 AM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Rick, good idea to bypass the radiator cooler unless you know it is very
> clean. On our second engine rebuild, in 12 months, we did same with the
> aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6
> inch.
> It uses the same size fittings as the oil cooler in the radiator so I am
> thinking they are larger than 3/8. I have an external trans cooler and it
> uses 5/16 hose. Seems like the engine oil cooler is a B&M.
> Dan
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.
Re: [GMCnet] stacked plate oil cooler [message #127756 is a reply to message #127753] Sat, 28 May 2011 11:32 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
Sully,
It always makes it easier to remember and makes better sense when
there are some expanation to the sugggestions.
Jim H has been around boats and know first hand how grounding is vital
for long term operation.

On Sat, May 28, 2011 at 9:23 AM, <sgltrac@gmail.com> wrote:
> Muchas gracias james
>
> Sully
> 77 royale
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: James Hupy <jamesh1296@gmail.com>
> Sender: gmclist-bounces@temp.gmcnet.org
> Date: Sat, 28 May 2011 08:42:57
> To: <gmclist@temp.gmcnet.org>
> Reply-To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Dissimilar metals joined by fluids that allow an exchange of ions
> (corrosion). Grounding helps defeat that. Similar to anode/cathode
> technology on boat hulls and sea water. Eats em up without it.
> Jim Hupy
> Salem, Or
> 78 GMC Royale 403
>
> On Sat, May 28, 2011 at 7:50 AM, <sgltrac@gmail.com> wrote:
>
>> Why is it important that the radiator be grounded?
>>
>> Sully
>> 77 royale
>> Sent from my Verizon Wireless BlackBerry
>>
>> -----Original Message-----
>> From: "Rob Mueller" <robmueller@iinet.net.au>
>> Sender: gmclist-bounces@temp.gmcnet.org
>> Date: Sat, 28 May 2011 11:58:30
>> To: <gmclist@temp.gmcnet.org>
>> Reply-To: gmclist@temp.gmcnet.org
>>  Subject: Re: [GMCnet] stacked plate oil cooler
>>
>> Dan,
>>
>> It was noted at the Patterson Convention during Ken Burton's presentation
>> about grounding the GMC that the radiator gets grounded to the engine /
>> transmission through the trans cooler lines. If you have a remote trans
>> cooler your radiator may not be grounded to the engine.
>>
>> Regards,
>> Rob M.
>> USAussie - Downunder
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>>
>> -----Original Message-----
>> From: gmclist-bounces@temp.gmcnet.org
>> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Dan Gregg
>> Sent: Saturday, May 28, 2011 11:43 AM
>> To: gmclist@temp.gmcnet.org
>> Subject: Re: [GMCnet] stacked plate oil cooler
>>
>> Rick, good idea to bypass the radiator cooler unless you know it is very
>> clean. On our second engine rebuild, in 12 months, we did same with the
>> aluminum radiator cooler. Jim K. gave me a cooler to use. It is a 10x6
>> inch.
>> It uses the same size fittings as the oil cooler in the radiator so I am
>> thinking they are larger than 3/8. I have an external trans cooler and it
>> uses 5/16 hose. Seems like the engine oil cooler is a B&M.
>> Dan
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
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>



--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] stacked plate oil cooler [message #127843 is a reply to message #127756] Sat, 28 May 2011 20:00 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Jim,

You must remember I am German - American - Australian.

The German part of me overrides the American - Australian and "just follows
orders." NO EXPLAINATIONS REQUIRED! ;-)

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jim Kanomata
Sent: Sunday, May 29, 2011 2:32 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Sully,
It always makes it easier to remember and makes better sense when
there are some expanation to the sugggestions.
Jim H has been around boats and know first hand how grounding is vital
for long term operation.

On Sat, May 28, 2011 at 9:23 AM, <sgltrac@gmail.com> wrote:
> Muchas gracias james
>
> Sully
> 77 royale
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: James Hupy <jamesh1296@gmail.com>
> Sender: gmclist-bounces@temp.gmcnet.org
> Date: Sat, 28 May 2011 08:42:57
> To: <gmclist@temp.gmcnet.org>
> Reply-To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Dissimilar metals joined by fluids that allow an exchange of ions
> (corrosion). Grounding helps defeat that. Similar to anode/cathode
> technology on boat hulls and sea water. Eats em up without it.
> Jim Hupy
> Salem, Or
> 78 GMC Royale 403
>
> On Sat, May 28, 2011 at 7:50 AM, <sgltrac@gmail.com> wrote:
>
>> Why is it important that the radiator be grounded?
>>
>> Sully
>> 77 royale
>> Sent from my Verizon Wireless BlackBerry
>>
>> -----Original Message-----
>> From: "Rob Mueller" <robmueller@iinet.net.au>
>> Sender: gmclist-bounces@temp.gmcnet.org
>> Date: Sat, 28 May 2011 11:58:30
>> To: <gmclist@temp.gmcnet.org>
>> Reply-To: gmclist@temp.gmcnet.org
>>  Subject: Re: [GMCnet] stacked plate oil cooler
>>
>> Dan,
>>
>> It was noted at the Patterson Convention during Ken Burton's presentation
>> about grounding the GMC that the radiator gets grounded to the engine /
>> transmission through the trans cooler lines. If you have a remote trans
>> cooler your radiator may not be grounded to the engine.
>>
>> Regards,
>> Rob M.
>> USAussie - Downunder
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>>


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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
Re: [GMCnet] stacked plate oil cooler [message #127844 is a reply to message #127738] Sat, 28 May 2011 20:09 Go to previous messageGo to next message
shawnee is currently offline  shawnee   United States
Messages: 422
Registered: February 2004
Location: NC
Karma: 0
Senior Member
sgltrac wrote on Sat, 28 May 2011 10:50

Why is it important that the radiator be grounded?

Sully
77 royale
Sent from my Verizon Wireless BlackBerry

-


Sully,

DO NOT GROUND THE RADIATOR! It must be the same electrical potential as the engine or isolated completely from any part of the coach.. The radiator is mounted on rubber mounts on top and bottom. If it is grounded any where but the engine, stray current can cause pin holes in the radiator. The transmission lines will assure the same electrical potential as the engine. Griffin Radiators will void their warranty if the radiator is grounded.

If there is any electrical component that has a poor ground, and we all have them, the current will find a ground somewhere. If it finds the radiator then it will start corrosion. If you doubt this look at the back of your radiator. If you see green streaks or green patches it is a sign of pin holes in the tubes that are leaking a small amount and it will get worse. The green comes from the copper component in the brass tubes. If you see the green, the radiator is on borrowed time.


Gene Dotson
74 Canyonlands
www.bdub.net/Motorhome_Enhancements New Windows and Aluminum Radiators
Re: [GMCnet] stacked plate oil cooler [message #127867 is a reply to message #127844] Sun, 29 May 2011 00:08 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
shawnee wrote on Sat, 28 May 2011 20:09

sgltrac wrote on Sat, 28 May 2011 10:50

Why is it important that the radiator be grounded?

Sully
77 royale
Sent from my Verizon Wireless BlackBerry

-


Sully,

DO NOT GROUND THE RADIATOR! It must be the same electrical potential as the engine or isolated completely from any part of the coach.. The radiator is mounted on rubber mounts on top and bottom. If it is grounded any where but the engine, stray current can cause pin holes in the radiator. The transmission lines will assure the same electrical potential as the engine. Griffin Radiators will void their warranty if the radiator is grounded.

If there is any electrical component that has a poor ground, and we all have them, the current will find a ground somewhere. If it finds the radiator then it will start corrosion. If you doubt this look at the back of your radiator. If you see green streaks or green patches it is a sign of pin holes in the tubes that are leaking a small amount and it will get worse. The green comes from the copper component in the brass tubes. If you see the green, the radiator is on borrowed time.


If you sat in my seminar at the Eastern states rally a few years ago or the GMCMI rally in Patterson this spring you would have received a handout on this topic. In the handout is a way to check for stray currents/voltages in the coolant causing the problem. The updated handout is supposed to be available on both the Eastern States sight and The GMCMI members only site. If you can not find it (I haven't check to see if they are really there), send me an OFF-NET email and I'll attach a copy of the file to my response email.

DO NOT GROUND THE RADIATOR except through the transmission or oil cooler lines directly to the engine. If you do, electrolysis will eat it up over time. Even the Griffin radiator which is very heavy duty radiator will get eaten up over time.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] stacked plate oil cooler [message #128066 is a reply to message #127843] Tue, 31 May 2011 10:40 Go to previous messageGo to next message
Duce Apocalypse is currently offline  Duce Apocalypse   United States
Messages: 824
Registered: May 2009
Location: Los angeles
Karma: 0
Senior Member

Robert I have a great schweinebraten recipe if you are interested Smile
Cooks well in the gmc oven if you still have it Smile

I am alsö looking to replace my old leaking radiator with the new AL rad. I was told by my local shop that it needs to be grounded. I have an extra tranny cooler but still have one of the original steel lines so that should be sufficient to ground the new rad? Or should I start with all new steel lines?

Robert Mueller wrote on Sat, 28 May 2011 20:00

Jim,

You must remember I am German - American - Australian.

The German part of me overrides the American - Australian and "just follows
orders." NO EXPLAINATIONS REQUIRED! Wink

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jim Kanomata
Sent: Sunday, May 29, 2011 2:32 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Sully,
It always makes it easier to remember and makes better sense when
there are some expanation to the sugggestions.
Jim H has been around boats and know first hand how grounding is vital
for long term operation.

On Sat, May 28, 2011 at 9:23 AM, <sgltrac@gmail.com> wrote:
> Muchas gracias james
>
> Sully
> 77 royale
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: James Hupy <jamesh1296@gmail.com>
> Sender: gmclist-bounces@temp.gmcnet.org
> Date: Sat, 28 May 2011 08:42:57
> To: <gmclist@temp.gmcnet.org>
> Reply-To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] stacked plate oil cooler
>
> Dissimilar metals joined by fluids that allow an exchange of ions
> (corrosion). Grounding helps defeat that. Similar to anode/cathode
> technology on boat hulls and sea water. Eats em up without it.
> Jim Hupy
> Salem, Or
> 78 GMC Royale 403
>
> On Sat, May 28, 2011 at 7:50 AM, <sgltrac@gmail.com> wrote:
>
>> Why is it important that the radiator be grounded?
>>
>> Sully
>> 77 royale
>> Sent from my Verizon Wireless BlackBerry
>>
>> -----Original Message-----
>> From: "Rob Mueller" <robmueller@iinet.net.au>
>> Sender: gmclist-bounces@temp.gmcnet.org
>> Date: Sat, 28 May 2011 11:58:30
>> To: <gmclist@temp.gmcnet.org>
>> Reply-To: gmclist@temp.gmcnet.org
>>  Subject: Re: [GMCnet] stacked plate oil cooler
>>
>> Dan,
>>
>> It was noted at the Patterson Convention during Ken Burton's presentation
>> about grounding the GMC that the radiator gets grounded to the engine /
>> transmission through the trans cooler lines. If you have a remote trans
>> cooler your radiator may not be grounded to the engine.
>>
>> Regards,
>> Rob M.
>> USAussie - Downunder
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>>


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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA
Re: [GMCnet] stacked plate oil cooler [message #128080 is a reply to message #128066] Tue, 31 May 2011 12:11 Go to previous messageGo to next message
pickle4k is currently offline  pickle4k   United States
Messages: 129
Registered: January 2011
Location: San Leandro
Karma: 0
Senior Member
Did you say: Schweinebraten? As an old German, I am always looking for a good recipe for a braten. I am cooking mine according to an old recipe from a cook book, but looking for a new way. Please send it to me via PM.
Thanks,


Nick R. NorCal 76-23'Transmode-Norris Rear Bath and 75-26' Avion
Re: [GMCnet] stacked plate oil cooler [message #128100 is a reply to message #128066] Tue, 31 May 2011 17:00 Go to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Shan,

I am more of a Sauerbraten fan! ;-) The chef wanted (and got) a new fangled
microwave - convection oven - grill but I'll bet she could still cook it in
the convection oven if the spirit moved her do to so.

As Gene Dotson / Jim Buchanan have note here MANY times the aluminum (or any
radiator) radiator MUST be grounded to the engine/transmission.

Retaining one of the OEM lines intact will suffice.

Having said that IIRC someone makes stainless steel trans cooler lines that
are 3/8" OD instead of the 5/16" OD OEM which in theory would allow greater
flow.

BTW I have an aluminum radiator in Double Trouble and a remote oil cooler
mounted just below the A/C condenser. Double Trouble has a 455, 3.21 final
drive, and I do not tow and have found that even on he hottest day the trans
oil pan temp does not go above 195 degrees and normally runs at around 175.

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Shan Rose
Sent: Wednesday, June 01, 2011 1:41 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] stacked plate oil cooler

Robert I have a great schweinebraten recipe if you are interested :)
Cooks well in the gmc oven if you still have it :)

I am alsö looking to replace my old leaking radiator with the new AL rad. I
was told by my local shop that it needs to be grounded. I have an extra
tranny cooler but still have one of the original steel lines so that should
be sufficient to ground the new rad? Or should I start with all new steel
lines?

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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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