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Old 09-01-2016, 01:05 PM   #1
karrlot's Avatar
Join Date: Jul 2015
Location: Manitou Springs, CO
Posts: 219
Year: 1991
Coachwork: Ward
Chassis: International 3800
Engine: DT466
Rated Cap: 65 passenger
Removing the rear heater

When I remove (or temporarily disable) the rear heater, can I just cap the coolant lines so no coolant is flowing to the back of the bus?

Or do I need to hook them back together so the coolant can flow from the engine out one pipe and back into the engine through the other pipe?

Please check out my blog-
Follow the (lack of) progress on the Karr Family Kamping Bus Blog
Here is my woefully inadequate build thread:
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Old 09-01-2016, 01:46 PM   #2
Bus Crazy
somewhereinusa's Avatar
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 2,303
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Just the two of us.
If you are removing all of the heaters you can block them off, if keeping front heat/defrost you need a loop.
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Old 09-01-2016, 09:18 PM   #3
New2Skool's Avatar
Join Date: Feb 2016
Location: Bemidji MN
Posts: 209
Year: 1998
Coachwork: Carpenter Body
Chassis: International 3800
Engine: DT466
Rated Cap: 65 to Zero. Folding Chair
The heaters run on a loop.
If you remove the rear heater, just bypass it at the mid heater and close the loop.
As far as avoiding a mess, I parked at an angle and cut the lines preventing leakages or spills.
I helped a friend remove the rear heater and he just temp clamped the hoses and reattached to complete the loop at the mid ship heater.
D.L. Jones III
"The Independence"
98 International
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