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Old 08-08-2022, 12:14 PM   #1
Skoolie
 
Join Date: Jan 2017
Location: USA
Posts: 106
Year: 1995
Coachwork: Thomas
Engine: Cat 3116
Rated Cap: 84
Leaking radiator fan motor

Hi all!

Long hot summer!
Hope you all are doing well.

1994. Thomas WestCoastER.
Cat 3116 with the Allison 643 transmission.
Radiator (and CAC ) is side mounted to the passengers side of the bus.

I’ve got a leaky radiator fan motor.

Looks like it’s only leaking out around the fan shaft. What a mess! Oil everywhere!!!


Is this a likely candidate for a Rebuild or should I go straight for a new replacement?
Some of what I’ve read says never Rebuild due to continual leaks. Some reports say that only matters if it’s leaking internally?

I’m still trying to determine the exact motor I have in the first place.

In currently in the Bus full time.
Have to take it to town once a week to dump and fill accordingly…
It’s leaking and making a mess, but it isn’t gushing oil out of the pump.
I have driven it twice since the leak started, I drive it about 15 miles to dump, then the same route back to park.
Highway speeds for most of that distance.
Engine temp only climbed over 195 when climbing a hill, now it sits about 205 when cruising at 55-60mph.
I’m guessing the leak is causing a pressure/flow problem and the fan isn’t spinning enough now.

Seeing as I’m having to move once a week, I don’t really want to take it apart without a plan!
But, It looks like I’m going to have to pull the motor to look for a manufacturer/part number.
Unless one of you fine folks knows exactly where to look? Maybe I could crane my head around in there with a mirror to look???
I

I am new to diesels and the associated hydraulic systems.
I am Not new to bending wrenches though!

Thanks!
Don

Hopefully the above makes sense.
ADD is hard! lol

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Old 08-08-2022, 12:17 PM   #2
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 19,007
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
since thomas is still in business you may be able to call a thomas dealer and ask them the part number for a new one (or reman one).. gives you a place to start at least..
thomas / frieghtliner are fairly close-knit so a freightliner dealer may be able to look it up as well.
cadillackid is offline   Reply With Quote
Old 08-10-2022, 10:57 AM   #3
Skoolie
 
Join Date: Jan 2017
Location: USA
Posts: 106
Year: 1995
Coachwork: Thomas
Engine: Cat 3116
Rated Cap: 84
Quote:
Originally Posted by cadillackid View Post
since thomas is still in business you may be able to call a thomas dealer and ask them the part number for a new one (or reman one).. gives you a place to start at least..
thomas / frieghtliner are fairly close-knit so a freightliner dealer may be able to look it up as well.
Iíve tried calling a Thomas dealer before, down in AZ.
They wouldnít talk to me about a bus unless I was a school district employee???

Iíll see what I can find around here!
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Old 08-10-2022, 12:35 PM   #4
Bus Crazy
 
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Join Date: Apr 2019
Location: SW USA
Posts: 2,064
Year: 2003
Coachwork: IC / Amtran
Chassis: CE300
Engine: International T444e
Rated Cap: 23
https://m.facebook.com/AAA-Bus-LLC-158562690845102/
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Old 08-10-2022, 01:49 PM   #5
Skoolie
 
Join Date: Jan 2017
Location: USA
Posts: 106
Year: 1995
Coachwork: Thomas
Engine: Cat 3116
Rated Cap: 84
I do not use Facebook at all.
Sorry.
I appreciate the link, Iím guessing by the part of the address I could see, the link is for Tony in Phoenix?

Love that guy!

He is in the list to call for a part, if I can get the old part number off the motor I have now!
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