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Old 03-28-2018, 07:48 PM   #1
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Join Date: Jul 2017
Location: Huntington beach
Posts: 605
Year: 1991
Coachwork: Bluebird
Chassis: T/C 2000 28 foot Handy Bus
Engine: Cummins 5.9 Mechanical
Rated Cap: 2
Transmission cooler for an AT 545

This is being installed on our 1991 Bluebird tc 2000 28 foot.
The fan cooler is a Derale 50 K BTU (don't quote me on the BTU's)from Summit as all of the Aeroquip A/N hardware.
It is fun not to be working on the motor for awhile. although the engine needs wiring and intercooler and radiator installed plus fluids but it is close. Also, have decided to move the shifter console to the right of the steering wheel. There was a metal box on the right that came out and left a big hole for the shifter assembly. Friday it will be plumbing it up. The hangars that were used to mount the cooler to the frame rail were salvaged from the tail pipe hangars when the tailpipe exited through the bumper.
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Old 03-28-2018, 08:32 PM   #2
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Year: 1993
Coachwork: Goshen
Chassis: E350
Engine: 7.3 IDI
Rated Cap: 14
Derale makes some nice coolers as does Longs. I run a Longs Tru-Cool 40k Max rated for 40k gvwr. 45k btu rating without a fan. Have had great luck with them.

Very nice install btw.
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Old 03-28-2018, 08:53 PM   #3
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Location: Houston, Texas
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Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Can't tell from the pix, does that unit have a fan? If so, will you be wiring it up to a thermostatic switch?
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Old 03-28-2018, 09:13 PM   #4
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Join Date: Jul 2017
Location: Huntington beach
Posts: 605
Year: 1991
Coachwork: Bluebird
Chassis: T/C 2000 28 foot Handy Bus
Engine: Cummins 5.9 Mechanical
Rated Cap: 2
Thanks what a fun project
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Old 03-28-2018, 09:18 PM   #5
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Join Date: Jul 2017
Location: Huntington beach
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Year: 1991
Coachwork: Bluebird
Chassis: T/C 2000 28 foot Handy Bus
Engine: Cummins 5.9 Mechanical
Rated Cap: 2
Yes it does will be using a 190 degree on 175 degree off switch located between the oil filter and the return port. Also, a temperature sensor for supply temperature and one for return temperature.
The oil thermostat valve also opens at 190 degrees.
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Old 03-28-2018, 09:20 PM   #6
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Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Excellent. I still need to get my switch, plumb & wire mine. Nice job!
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Old 03-28-2018, 10:16 PM   #7
Bus Nut
 
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Join Date: Jul 2017
Location: Huntington beach
Posts: 605
Year: 1991
Coachwork: Bluebird
Chassis: T/C 2000 28 foot Handy Bus
Engine: Cummins 5.9 Mechanical
Rated Cap: 2
Thanks for the kind words
I love Summit most of the time it is next day service for me
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Old 03-29-2018, 09:26 AM   #8
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Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
I like both Summit & Jegs but got my cooler from Earl's after a custom car builder recommended their goods.
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Old 03-29-2018, 12:45 PM   #9
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Join Date: Jul 2017
Location: Huntington beach
Posts: 605
Year: 1991
Coachwork: Bluebird
Chassis: T/C 2000 28 foot Handy Bus
Engine: Cummins 5.9 Mechanical
Rated Cap: 2
I am wondering if the 190 deg/175 deg split will be too much. It might turn on and never turn off. Might have to experiment with sensor location and range.
Where the heck is the PID loop on this thing?
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Old 03-29-2018, 01:35 PM   #10
Bus Nut
 
Join Date: Jul 2017
Posts: 365
Year: 1993
Coachwork: Goshen
Chassis: E350
Engine: 7.3 IDI
Rated Cap: 14
Quote:
Originally Posted by Rivetboy View Post
I am wondering if the 190 deg/175 deg split will be too much. It might turn on and never turn off. Might have to experiment with sensor location and range.
Where the heck is the PID loop on this thing?
I dont think you'll have any issues with it if the cooler is not looped with the radiator cooler. My 40k keeps my built 4l80e under 140 in the middle of summer with no fan. I'd say the only time the fan will kick on will be pulling hills and such... but only time will tell.
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