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4 TRCA 7230 Heat Exchanger


 
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ETD66SS
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PostPosted: Sat Jun 01, 2019 12:49 am    Post subject: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

Anyone know where I can buy one of these?

https://www.ebay.com/itm/John-Deere-4TRCA7236-Oil-Cooler-/323269906947

I don't own a John Deere, but that eBay listing shows that as a Deere part. I have the same exact heat exchanger on a 1971 Pettibone fork truck I am working on. That heat exchanger is part of the Funk Reverse-O-Matic transmission. I am assuming those were used on some John Deere construction equipment at some point in time?

Hoping a parts guru can help me out.

https://imgur.com/Bt3rGC9
https://imgur.com/OR8KMbO
 
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Bob
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PostPosted: Mon Jun 03, 2019 9:41 pm    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

"I am assuming those were used on some John Deere construction equipment at some point in time?"

I can't offer you any direct help in finding one of these, but (FWIW) John Deere OWNS Funk.

You mite try to contact a John Deere Powertrain dealer and ask if there is any parts availability for the older unit you have.
 
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ETD66SS
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PostPosted: Tue Jun 04, 2019 3:33 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote


I sent an email to these guys: https://www.glpower.com/products/funk-powershift-transmissions.html

But from memory, I sent one a year or so ago and then blew me off.

I'm not sure what would happen if I walk into my local JD dealership. It's all agricultural around here, and they are all small lawn & garden type dealerships, the big AG ones are a drive to get to.
 
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Bob
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PostPosted: Tue Jun 04, 2019 5:51 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

ETD66SS wrote:
(quoted from post at 06:33:13 06/04/19)
I sent an email to these guys: https://www.glpower.com/products/funk-powershift-transmissions.html

But from memory, I sent one a year or so ago and then blew me off.

I'm not sure what would happen if I walk into my local JD dealership. It's all agricultural around here, and they are all small lawn & garden type dealerships, the big AG ones are a drive to get to.


Here's what jdparts.com has to say about it:



Looks to be a simple "plate type" heat exchanger, must have reverser oil on one side and engine coolant on the other?

With a little replumbing, there's all sorts of options.

There's HUNDREDS of general use "plate-type heat exchangers" on ebay.

How about one for a Dodge/Cummins? (ebay # 153298795840) (Only $34!!!), or Amazon https://www.amazon.com/Transmission-Torque-Converter-Exchanger-68004317AA/dp/B074296WLF

Or, GOOGLE "heat exchanger for torque convertor".
 
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ETD66SS
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PostPosted: Tue Jun 04, 2019 6:45 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

Bob wrote:
(quoted from post at 06:51:40 06/04/19)
ETD66SS wrote:
(quoted from post at 06:33:13 06/04/19)
I sent an email to these guys: https://www.glpower.com/products/funk-powershift-transmissions.html

But from memory, I sent one a year or so ago and then blew me off.

I'm not sure what would happen if I walk into my local JD dealership. It's all agricultural around here, and they are all small lawn & garden type dealerships, the big AG ones are a drive to get to.


Here's what jdparts.com has to say about it:



Looks to be a simple "plate type" heat exchanger, must have reverser oil on one side and engine coolant on the other?

With a little replumbing, there's all sorts of options.

There's HUNDREDS of general use "plate-type heat exchangers" on ebay.

How about one for a Dodge/Cummins? (ebay # 153298795840) (Only $34!!!), or Amazon https://www.amazon.com/Transmission-Torque-Converter-Exchanger-68004317AA/dp/B074296WLF

Or, GOOGLE "heat exchanger for torque convertor".


Would an oil cooler from a truck work? Mounted in front of the radiator?

I still have a chance to fix mine, just need to braze a nipple back on. I just want options in case my repair fails.
 
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ETD66SS
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PostPosted: Tue Jun 04, 2019 6:50 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

[/url]https://imgur.com/KYSlApm[url]

An easy repair for an experience welder, but I've never brazed before, so hoping I don't melt the thin metal.

The nipple was stressed for many years by a hanging hose and it ripped off when I was removing the heater hose.[/url]
 
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ETD66SS
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PostPosted: Tue Jun 04, 2019 6:51 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

Let me try the link again, hate that we can't edit our posts, crazy in this day and age...

https://imgur.com/KYSlApm
 
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Bob
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PostPosted: Tue Jun 04, 2019 7:30 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

ETD66SS wrote:
(quoted from post at 09:51:59 06/04/19) Let me try the link again, hate that we can't edit our posts, crazy in this day and age...

https://imgur.com/KYSlApm


Looks like that nipple was "furnace brazed" in place, and the cooler is "furnace brazed" together.

It MAY be possible to carefully braze the nipple in place with a small flame, but the downside is if that would happen to open up a joint inside causing an internal leak/mixing of coolant and oil, it will make an ugly mess.

If there's room in front of the radiator for a cooler, I don't see why that wouldn't be a viable option, as well as the replacement heat exchangers I posted about.
 
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ETD66SS
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PostPosted: Tue Jun 04, 2019 8:08 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

Bob wrote:
(quoted from post at 08:30:59 06/04/19)
ETD66SS wrote:
(quoted from post at 09:51:59 06/04/19) Let me try the link again, hate that we can't edit our posts, crazy in this day and age...

https://imgur.com/KYSlApm


Looks like that nipple was "furnace brazed" in place, and the cooler is "furnace brazed" together.

It MAY be possible to carefully braze the nipple in place with a small flame, but the downside is if that would happen to open up a joint inside causing an internal leak/mixing of coolant and oil, it will make an ugly mess.

If there's room in front of the radiator for a cooler, I don't see why that wouldn't be a viable option, as well as the replacement heat exchangers I posted about.


Yeah, it's a sketchy repair. I fear causing a leak elsewhere in the unit.

Funny thing is, I live only about 2 miles from where this was originally made when I was -2 years old...
 
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Denny K
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PostPosted: Tue Jun 04, 2019 10:57 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

Yes, John Deere used the Funk transmissions on payloaders. 544A, B, C, not sure about the D series. Several other manufacturers used them also. Case for one.
 
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Eb1953
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PostPosted: Tue Jun 04, 2019 10:58 am    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote

Appears to me to be the same oil cooler used on the Oliver 50 series Hydra Power.
 
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ETD66SS
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PostPosted: Tue Jun 04, 2019 1:27 pm    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote


So far every place I have talked to tells me the part is obsolete when they look in their database. I already knew that... No one wants to check stock. I can't stand dealing with the dealerships these days. No one wants to put in any effort. There is likely a bunch of these things sitting on shelves somewhere.
 
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ETD66SS
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PostPosted: Wed Jun 05, 2019 2:08 pm    Post subject: Re: 4 TRCA 7230 Heat Exchanger Reply to specific post Reply with quote


Well I bought the Bernzomatic Map/Oxy kit with micro torch and used the silver/nickel/zinc flux coated rod to braze the nipple back on. I chose that rod because it had the lowest melt temp.

https://imgur.com/bmbPTzX

I was too chicken to keep heat on the pool of braze to let the flow even out a bit more because I did not want to melt any of the existing joints/seams.

I suppose I'll do a pressure test in a tank of water to see if there are any leaks.
 
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