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| [GMCnet] Engine & Transmission Oil Coolers [message #280087] |
Wed, 17 June 2015 07:36  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
I went down the shop yesterday and cut open an OEM engine and transmission oil cooler and have posted them on the Photo Site.
http://www.gmcmhphotos.com/photos/g6805-oem-engine-26amp-3b-trans-oil-coolers.html
I didn't have time to label or describe them, I will get to that. At least you've now know what they look like inside and figger out
how we clean them.
I only posted cutaway photos of the engine oil cooler because the transmission fluid cooler is exactly the same inside; the only
differences I could see are the number of "passes" and connection size.
Regards,
Rob M.
The Pedantic Mechanic
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280166 is a reply to message #280093] |
Thu, 18 June 2015 02:14  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Dwayne,
No disrespect intended but to a guy like me that was involved with Project Apollo getting to the Moon cleaning an oil cooler doesn't
seem that big a deal. ;-)
Nor is finding someone who can either, there are companies that clean aircraft oil coolers that I am sure can do the job. Whether or
not it would be cost effective for them to provide that service is another question.
I sent in a message entitled "Contaminated Radiator Engine Oil Coolers" on 7/10/2014. I just reviewed it start to finish to bring
myself up to speed as to where we left off. I got kick out of that thread as it reflects my observation that this place is a "bunch
of guys sittin' around a country stove bs'in." It drifts from the subject to McDonalds, plywood sizes, the metric system, Canadian
coins, how to order a beer, etc. The neat thing is the emails were CIVIL! NO FLAMES!
That's what I love about this place. We're sitting at far flung "corners" of the world discussing problems in a civil manner! We
need to figger out how take over the world and straighten it out! ;-)
At any rate I'm surfing the net to see what I can find out vis-à-vis cleaning coolers constructed similarly to the ones we have in
the OEM radiator. When I have something of substance I will publish it on the GMCnet.
Regards,
Rob M.
-----Original Message-----
From: dwayne jacobson
Man when I see this I wouldn't attempt a cleaning job myself on the cooler
following an engine failure. I should have changed out the whole rad the
first time my engine failed and believe that would have saved the second
engine failure after only 400 miles. I then went to an external oil cooler
as well as an external tranny cooler.
Dwayne
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280168 is a reply to message #280166] |
Thu, 18 June 2015 02:35 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
Well that didn't take long!
Check this out:
http://www.hotflusher.com/
Regards,
Rob M.
The Pedantic Mechanic
-----Original Message-----
From: Robert Mueller
Dwayne,
No disrespect intended but to a guy like me that was involved with Project Apollo getting to the Moon cleaning an oil cooler doesn't
seem that big a deal. ;-)
Nor is finding someone who can either, there are companies that clean aircraft oil coolers that I am sure can do the job. Whether or
not it would be cost effective for them to provide that service is another question.
I sent in a message entitled "Contaminated Radiator Engine Oil Coolers" on 7/10/2014. I just reviewed it start to finish to bring
myself up to speed as to where we left off. I got kick out of that thread as it reflects my observation that this place is a "bunch
of guys sittin' around a country stove bs'in." It drifts from the subject to McDonalds, plywood sizes, the metric system, Canadian
coins, how to order a beer, etc. The neat thing is the emails were CIVIL! NO FLAMES!
That's what I love about this place. We're sitting at far flung "corners" of the world discussing problems in a civil manner! We
need to figger out how take over the world and straighten it out! ;-)
At any rate I'm surfing the net to see what I can find out vis-à-vis cleaning coolers constructed similarly to the ones we have in
the OEM radiator. When I have something of substance I will publish it on the GMCnet.
Regards,
Rob M.
-----Original Message-----
From: dwayne jacobson
Man when I see this I wouldn't attempt a cleaning job myself on the cooler
following an engine failure. I should have changed out the whole rad the
first time my engine failed and believe that would have saved the second
engine failure after only 400 miles. I then went to an external oil cooler
as well as an external tranny cooler.
Dwayne
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280173 is a reply to message #280168] |
Thu, 18 June 2015 07:00 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I sent an aircraft oil cooler in to a place for cleaning about 15 years ago. I cannot remember where it was now, but at the time it was not very expensive. They put it on a machine and ran it forward and backwards through several filtered cycles to clean it. I have never heard of anyone having an aircraft engine fail after and oil cooler flushing. That particular cooler has been on my airplane for around 1500 hours. We do not buy new oil coolers for aircraft. They are price prohibitive. We rebuild the old ones. It also also common to flush automotive AC coolers (condensers) and evaporators.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280176 is a reply to message #280173] |
Thu, 18 June 2015 07:36 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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Same is true with heavy equipment and hydraulics.
It's clean and/or rebuild
Dolph Santorine
DE N8JPC
Wheeling, West Virginia
1977 ex-Palm Beach TZE167V100820
1-ton, Sullybuilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission, EV-6010,
> On Jun 18, 2015, at 8:00 AM, Ken Burton wrote:
>
> I sent an aircraft oil cooler in to a place for cleaning about 15 years ago. I cannot remember where it was now, but at the time it was not very
> expensive. They put it on a machine and ran it forward and backwards through several filtered cycles to clean it. I have never heard of anyone
> having an aircraft engine fail after and oil cooler flushing. That particular cooler has been on my airplane for around 1500 hours. We do not buy
> new oil coolers for aircraft. They are price prohibitive. We rebuild the old ones. It also also common to flush automotive AC coolers (condensers)
> and evaporators.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
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> GMCnet mailing list
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280180 is a reply to message #280087] |
Thu, 18 June 2015 08:38 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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I'm sure they can be cleaned but the cost of shipping a radiator to wherever is cost prohibitive unless you happen to live near one. And just buying an aftermarket $230 fan forced unit like the Derale 13950 just seems to make more sense and removes the chance that something didn't get cleaned out. I remember reading on one of the hot cleaner systems that showed a photo of the debris THEIR system removed after it had been cleaned by their competitors.
I took the "life is too short..." approach and installed an aftermarket unit.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280186 is a reply to message #280181] |
Thu, 18 June 2015 09:14 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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I'm a little confused.
The oil flows from the engine to the cooler, and then back to the filter where it is filtered and goes back to the engine. Wouldn't the filter remove any contaminants?
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280193 is a reply to message #280186] |
Thu, 18 June 2015 09:44 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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Perhaps one of these on the cooler return line would provide some protection:
http://www.racerpartswholesale.com/product/338/Remote_Oil_Filters
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280194 is a reply to message #280190] |
Thu, 18 June 2015 09:55 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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John T. wrote on Thu, 18 June 2015 09:38 Joe, I could see that to be true but if your oil filter bypasses then those contaminants could end back into your engine and contaminants in your cooler could also diminish flow and cooling capability.
I have a new aluminum radiator I installed just in time for my bearings to grenade. I'm not concerned about the buildup as the radiator only had about 30 miles on it when the engine went. But after rebuilding the engine, I just hooked the old radiator back up and ran it in without thinking...like I need one more thing to worry about.
I think perhaps I will buy one of these in-line filters just to be sure whatever damage is done does not continue. Maybe I'll get lucky. Either way the extra filter can't hurt if it flows enough volume without restriction.
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280270 is a reply to message #280260] |
Fri, 19 June 2015 11:21 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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Rob,
You might want to revise those size figures. The tranny cooler lines are
5/16" with an oversize nut on the radiator end.
When you convert to 3/8", the lines screw right in. You only need the
special fittings on the tranny end. Also, without
actually measuring the engine lines, I'd guess 1/2" or 5/8".
Gary Kosier
77PB w/500 Cad
Newark, Oh
-----Original Message-----
From: Robert Mueller
Sent: Friday, June 19, 2015 10:15 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Engine & Transmission Oil Coolers
G'day,
Just got off the phone with Hot Flush tech support and found out that there
ARE units in Australia! They are going to send me a list
of the shops here.
I spent about an hour or so earlier today reviewing all the links on the Hot
Flush website http://www.hotflusher.com/ and as far as
I'm concerned if I had an engine or transmission that failed this is the
machine I would use to clean the engine oil or transmission
fluid cooler.
I noticed there are 80 + testimonials on the Hot Flush website so for the
hell of it I called A-1 Transmission in Kerrville, TX and
the owner said if I brought the GMC radiator into his shop he would clean
both the engine and transmission coolers for $95.66. He
said he normally charges $95.66 each but would do both for the same price
since I was bringing in the radiator. He asked what the
inlet and outlet fittings were and I noted the trans cooler is 5/16"
inverted flare and the oil cooler is 3/8" inverted flare "no
problem."
On the flip side I called ABZ Transmissions in New Bern, NC and they said
they couldn't do it.
Regards,
Rob M.
The Pedantic Mechanic
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280302 is a reply to message #280270] |
Fri, 19 June 2015 17:10 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Gary,
DOUH!
Hotflush sent me the info below and as it turns out that the first company on the list is about 8 miles from my workshop in
Peakhurst. I have an aluminum radiator that I intend to install in The Blue Streak and when I do that I will take the radiator to
that shop and have them clean both the engine oil cooler and transmission fluid cooler. I will get them to save all the contaminants
that come out of each. While this will not demonstrate what will happen when cleaning a cooler downstream of a failed engine or
transmission but it will be interesting to find out how much contamination they get out of radiator coolers after forty years of
use.
************************************************************************************************************************************
************
Hello!
Here are a few of our customer's in Australia using a Hot Flush machine as requested.
Cronulla Sutherland Automatics
14 Flora St
Kirrawee, Sydney
612-952-16788
Precision Automatic Transmissions
19 Ruse St
Osborne Park, WA
089-201-1442
Ringwood Automatic P/L
Factory 5/ 156-160 New St
Ringwood, Vic
613-987-91009
Thank you,
Shannon Gross
Hot Flush, Inc.
1-800-852-5713
www.hotflusher.com
************************************************************************************************************************************
************
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Kosier
Sent: Saturday, June 20, 2015 2:22 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Engine & Transmission Oil Coolers
Rob,
You might want to revise those size figures. The tranny cooler lines are
5/16" with an oversize nut on the radiator end.
When you convert to 3/8", the lines screw right in. You only need the
special fittings on the tranny end. Also, without
actually measuring the engine lines, I'd guess 1/2" or 5/8".
Gary Kosier
77PB w/500 Cad
Newark, Oh
-----Original Message-----
From: Robert Mueller
Sent: Friday, June 19, 2015 10:15 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Engine & Transmission Oil Coolers
G'day,
Just got off the phone with Hot Flush tech support and found out that there
ARE units in Australia! They are going to send me a list
of the shops here.
I spent about an hour or so earlier today reviewing all the links on the Hot
Flush website http://www.hotflusher.com/ and as far as
I'm concerned if I had an engine or transmission that failed this is the
machine I would use to clean the engine oil or transmission
fluid cooler.
I noticed there are 80 + testimonials on the Hot Flush website so for the
hell of it I called A-1 Transmission in Kerrville, TX and
the owner said if I brought the GMC radiator into his shop he would clean
both the engine and transmission coolers for $95.66. He
said he normally charges $95.66 each but would do both for the same price
since I was bringing in the radiator. He asked what the
inlet and outlet fittings were and I noted the trans cooler is 5/16"
inverted flare and the oil cooler is 3/8" inverted flare "no
problem."
On the flip side I called ABZ Transmissions in New Bern, NC and they said
they couldn't do it.
Regards,
Rob M.
The Pedantic Mechanic
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GMCnet mailing list
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GMCnet mailing list
Unsubscribe or Change List Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Engine & Transmission Oil Coolers [message #280309 is a reply to message #280181] |
Fri, 19 June 2015 18:54 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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USAussie wrote on Thu, 18 June 2015 06:39G'day,
Did some more poking around the Hot Flush website and found this:
http://www.hotflusher.com/automotive/Jay-Leno-Hot-Flush.cfm
Comments please?
It appears that part of the trick is in the heat and the unit expanding, helping it let go of gunk. Makes me pretty much think that "flushing" it out in place is not as effective as one might hope. (seen it done more than once) Beginning to think about the frustrating engine failures we read about.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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