Free 7 Day Trial RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
 
Old 11-27-2021, 12:02 AM   #1
Mini-Skoolie
 
lcm0027's Avatar
 
Join Date: Sep 2021
Posts: 18
Rear Engine Heater Lines Loop Install

I temporarily want to run a loop on the heater cooling lines while we rerun the heater lines under the bus. We are keeping the 2 heaters in the front (under driver seat and defrost) so to help with cooling in hot climates. Do I just need to loop the hoses together before
or after the pump that they run to? Please see picture for reference and my poorly drawn lines.

Also the valve in the picture doesnít seem to close all the way. These valves I believe are already turned off but I think itís open a bit and coolant is still able to flow in that circuit. Is that normal?

The main valve I see on top of the engine is turned all the way off.
Attached Images
File Type: jpg IMG_2992.jpg (193.4 KB, 25 views)

lcm0027 is offline   Reply With Quote
Old 11-27-2021, 05:41 PM   #2
Bus Crazy
 
Jolly Roger bus 223's Avatar
 
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 1,771
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
if you have gate valves then yes they probably do not close all the way because of sediment caught in the gate slide.
i would replace them with full port ball valves myself.
loop the lines after the tee's that feed the heaters you want to keep.
sorry just looked at your picture and that is a ball valve that is not shut off period.
the square side of the handle stem shows that it is open.
i dont your specific cooling system because i have never had a coolant pump system.
and thought the extra coolant pump only fed the rear heaters?
i stand corrected
i was replying to your first post and the pic showed up on second post.
sorry
Jolly Roger bus 223 is online now   Reply With Quote
Old 11-27-2021, 05:44 PM   #3
Mini-Skoolie
 
lcm0027's Avatar
 
Join Date: Sep 2021
Posts: 18
So this is a rear engine bus with these lines going to the front heaters. Iíve removed the rear heater and looking to just keep the heater under driver and defroster. Iím currently taking out the loop I rigged up yesterday and just bought new lines to rerun to the front. I also just bought a new handle so Iíll see about shutting that valve fully
lcm0027 is offline   Reply With Quote
Old 11-27-2021, 06:11 PM   #4
Mini-Skoolie
 
lcm0027's Avatar
 
Join Date: Sep 2021
Posts: 18
image-2021-11-27-17:11:09-959.jpg
I assume this one is turned off though right?
lcm0027 is offline   Reply With Quote
Old 11-27-2021, 06:42 PM   #5
Bus Crazy
 
Jolly Roger bus 223's Avatar
 
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 1,771
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
yes looks like it.
while you are working on the system then i would recommend changing those valves for ones more user friendly
Jolly Roger bus 223 is online now   Reply With Quote
Old 12-03-2021, 11:42 PM   #6
Mini-Skoolie
 
Join Date: Oct 2021
Posts: 12
Anyone have advice for non functioning heater? While parked, no heat comes on. Ive opened all the valves and nothing happens. I have a 1995 International 3800 dt466. Please help!
JSquire7 is offline   Reply With Quote
Old 12-04-2021, 12:18 PM   #7
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 10,471
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
The pump aides in pushing the coolant to the front of the bus. You'll need it if you retain the front heaters on an RE.
__________________
I Thank God That He Gifted Me with Common Sense
o1marc is offline   Reply With Quote
Old 12-06-2021, 12:12 AM   #8
Mini-Skoolie
 
lcm0027's Avatar
 
Join Date: Sep 2021
Posts: 18
Quote:
Originally Posted by JSquire7 View Post
Anyone have advice for non functioning heater? While parked, no heat comes on. Ive opened all the valves and nothing happens. I have a 1995 International 3800 dt466. Please help!

That booster pump you have has gone out or the relay in gone out
lcm0027 is offline   Reply With Quote
Old 12-06-2021, 07:22 AM   #9
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 15,978
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
a 3800 model indicates front engine.. do you have heat while the bus is moving or the engine is revved up? is your temp gauge moving up at all? when you say parked im assuming parked and engine idling?
cadillackid is offline   Reply With Quote
Old 12-06-2021, 01:43 PM   #10
Mini-Skoolie
 
Join Date: Oct 2021
Posts: 12
Yes I apologize Indidnt realize this was a rear engine thread, I have a front engine. I don’t seem to get heat whil the bus is running/idling while it’s parked. I have tested my gauges (by switching them around the instrument cluster and all gauges work). My operating temperature remains at 100 whole idling for 20 minutes. Could this be a thermostat problem?
JSquire7 is offline   Reply With Quote
Old 12-06-2021, 01:59 PM   #11
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 15,978
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
possibly.. what does it get up to driving around town? does it ever warm up if you have the heater fans turned off and idling?



at 20 minutes of idling with no heater fans on my DT360 does warm up to someplace between 100 and 180 mark on the gauge.. with heater fans on it takes much longer..
cadillackid is offline   Reply With Quote
Old 12-06-2021, 02:00 PM   #12
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 15,978
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
driving around town with heater fans off or valves closed my DT360 gets to 180 within 15-20 minutes..
cadillackid is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 07:45 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.