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Old 11-29-2017, 10:37 AM   #1
Mini-Skoolie
 
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Year: 1989
Coachwork: Chevy
Chassis: C60
Engine: 8.2 diesel "Fuel Pincher"
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Help me with my unidentified coolant parts?

This is the post about another unidentified object I found underneath my skoolie. Any help is appreciated, near the front, next to the fuel tank. Itís metal and feels like it cracked/broken at one end.

Thanks for any help you can offer.

1989 GMC Thomas 60 military bus.
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Old 11-29-2017, 10:48 AM   #2
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Does the engine oil, coolant or exhaust go thru it? Looks like something used to heat or cool another liquid.
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Old 11-29-2017, 10:55 AM   #3
Mini-Skoolie
 
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Year: 1989
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Chassis: C60
Engine: 8.2 diesel "Fuel Pincher"
Rated Cap: GVWR 27000
I was thinking the same thing. I thought somebody with a little more experience might Be able to identify this. Maybe it’s standard?
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Old 11-29-2017, 11:13 AM   #4
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I’m gonna go take some more pictures. I have a feeling this is connected to my other on identified listing, hmmm.
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Old 11-29-2017, 02:52 PM   #5
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Well, I decided to keep looking at this item until I had some insight. I found out that those wires running to each and run to a 110 V outlet on the outside of the bus.

From the same box that came from there is another electric line running to the front of the bus. I havenít followed up with that when yet.

I believe you are right that this is a heating unit or some type of valve. The 110 V jumps from the front to the back.

Another interesting thing is if I squeeze the anti-freeze hose I hear something that sounds like a valve flipping around.

The anti-freeze from this unit runs into a cylinder that looks like it heats up the diesel fuel. It says not to run it in the summertime, but to have a valve on it? Itís the last picture.

Anybody else has any idea what this might be for sure, I hope they will chime in.

-Lewis
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Old 11-29-2017, 03:04 PM   #6
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Is that some type of heat exchanger to keep the fuel from gelling in really cold weather? Might be if a military built bus. Definitely worth more inspection and if good I would leave it.
I talked to a trucker once who wanted diesel for a fillup but it was so cold the fuel wouldn't pump. With windchill it was said to be -68f in northern Quebec. My very last trip into that country forever.

Your pics don't give much clue so just follow the lines I guess. Someone here has seen that setup before likely.

My 2 cents,

John
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Old 11-29-2017, 03:06 PM   #7
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Cowlitzcoach isn't on as much anymore, but he'd know what it is.
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Old 11-29-2017, 03:18 PM   #8
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That pretty much sounds like a block heater. It dose look like a heat exchanger of some type.

If your hoses are quite soft you should probably look at replacing them before you attempt any deserts.

You know the old saying, "If it ain't broke, don't fix it." Plug that baby in for a minute or so to see if it heats up, or sparks fly or whatever. I'd bet it still works.
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Old 11-29-2017, 03:43 PM   #9
Mini-Skoolie
 
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Year: 1989
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Chassis: C60
Engine: 8.2 diesel "Fuel Pincher"
Rated Cap: GVWR 27000
Hello Robin,
I think it for heating. There is another 120v headed to the front. I’ll look at it tomorrow, but likely for the block. I was able to squeeze the hoses so easily, since they are made of silicone?! They are braided and all, just easy to squeeze.

I may need to do the plug and see method.

Thanks for your input!
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Old 11-29-2017, 03:46 PM   #10
Mini-Skoolie
 
Join Date: Sep 2017
Posts: 68
Year: 1989
Coachwork: Chevy
Chassis: C60
Engine: 8.2 diesel "Fuel Pincher"
Rated Cap: GVWR 27000
The picture that looks like A can, yes that’s what that is. It’s the black thing that has 120 V running to it. I’m guessing it’s a heater of some kind as well. We’re planning on moving to Kansas, further weather doesn’t get too extreme.

Unit has a crack at one end as well. Thinking of cutting it off and just joining the two ends for circulation. Just leave everything else in place.
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