Reply
 
Thread Tools Display Modes
 
Old 01-31-2007, 12:33 PM   #1
Bus Nut
 
KC10Chief's Avatar
 
Join Date: Jun 2006
Location: Edmond, OK
Posts: 529
Year: 1993
Coachwork: Carpenter
Chassis: International
Engine: 7.3 International diesel
Rated Cap: 60
Drove my bus home today and I have NO HEAT!!

I went today and picked up my bus and drove it the 20 miles or so home! It hadn't been cranked in a week and a half and it was 24 degrees when I picked it up! Ugh! Anyways, the 7.3L diesel engine fired right up! I was very pleased. I let it warm up for a minute and took off! It was a lot easier to drive than I expected. Anyways, I let the engine warm up for a minute and flipped the heaters on. But it just blew ice cold air all the way home. I about froze to death! There is a switch for a booster pump but that had no effect. So, I get the bus home and parked and open the hood. I noticed that there is an antifreeze line coming out of the head and into a pump looking thing on the firewall. Then a line comes out of that and goes into the firewall on the heater side. There's another line that comes out of the firewall right next to it. I can only imagine that this pump pumps coolant to the heaters right? The fans in the heaters work fine. The electric lines on this pump are disconnected for some reason. I would have messed with it longer, but it was brutally cold out. The howling wind was making it unbearable to be out any longer. Anyways, is this pump the likely cause why my heaters aren't blowing hot air? Thanks!
Matt
__________________
Matt
1993 International Carpenter 10 Window bus
7.3L diesel w/AT545
http://i74.photobucket.com/albums/i2...DSC02426-1.jpg
KC10Chief is offline   Reply With Quote
Old 01-31-2007, 12:49 PM   #2
Bus Crazy
 
Steve's Avatar
 
Join Date: Jul 2002
Location: Central Iowa
Posts: 1,838
Send a message via AIM to Steve
Usually pumps are disconnected or valves are installed so that the coolant doesn't circulate into the bus during the summer. Even without the fans running all that hot water in the lines really heats things up. My bus had two valves installed on it so that you can open or close the lines going into the bus.
__________________
View my 1972 Ward: Topic from the Build : The Picture Gallery
View my 1986 Blue Bird: Topic from the Build : The Picture Gallery
View my 1960 GMC: Topic from the Build : The Picture Gallery
Steve is offline   Reply With Quote
Old 01-31-2007, 01:29 PM   #3
Bus Nut
 
Join Date: Sep 2005
Location: Savage, MN
Posts: 472
Year: 1992
Coachwork: Bluebird
Chassis: International
Engine: 7.3 diesel
Rated Cap: 14
It will either be plugged heater core or a hose that you can try unplugging using a garden hose in one end or you have the valves closed if they are any. It is said that the antifreeze gels up and can plug things up a little when they sit or when the valves are closed off all summer. The electric pump is only there to help the flow and it is not really needed to circulate the antifreeze. But I suppose it could be possible that it could sieze and prevent the flow but I havn't ever taken one apart.

On mine it was plugged and I went halfway home before pulling over to a auto parts store thinking it was a thermostat which a bought and never put in. I also bought a 5 gallon gas can to drain antifreeze in to. I ended up bypassing the rear heater and the heater next to the driver seat and just used the heater by the service door and it warmed up good but I also have a half a bus. Once I got home and pulled the seats out and the rear heater that I didn't need anyways I blew the hoses and heater core out.
wmah is offline   Reply With Quote
Old 01-31-2007, 02:04 PM   #4
Bus Crazy
 
Elliot Naess's Avatar
 
Join Date: Oct 2005
Location: Clearlake, Northern California
Posts: 2,116
Year: 1992
Coachwork: Blue Bird
Chassis: TC-2000 Frt Eng, Tranny:MT643
Engine: 5,9 Cummins
Rated Cap: 84
Matt:
Besides looking for valves under the hood, look for one inside by the driver's seat.
My 1981 IH/BB had a "garden hose faucet" valve by the driver's left knee that controlled
the entire heating flow. So simple and gives you total control - gotta love school buses.
The electric pump obviously needs to be reconnected or replaced. I was at the Blue Bird
store the other day, and they had piles of those pumps right out front like candy bars
in the grocery store.
Glad to hear it ran good!
__________________
Elliot
Millicent The Bus - roof raised two feet, toy-hauler tailgate.
http://www.skoolie.net/forums/f11/th...gate-1564.html
Elliot Naess is offline   Reply With Quote
Old 01-31-2007, 05:39 PM   #5
Bus Geek
 
the_experience03's Avatar
 
Join Date: Feb 2006
Location: Saint James, MN
Posts: 2,669
Send a message via MSN to the_experience03 Send a message via Yahoo to the_experience03
This is going to sound like a dee-dee-dee suggestion, but I found it to be an issue with my bus so.....

After you get it heated up enough that you know that the thermostat has opened and you have tracked down all the valves and made sure they're open, shut the bus down and check to make sure you have enough coolant. An air bubble here and an air bubble there and pretty soon you're 2 gallons low on coolant. It's still plenty to cool the motor, but not enough to heat the interior.
__________________
http://farm4.static.flickr.com/3024/...09f20d39_m.jpg
Skooling it...one state at a time...
the_experience03 is offline   Reply With Quote
Old 01-31-2007, 05:54 PM   #6
Bus Crazy
 
Elliot Naess's Avatar
 
Join Date: Oct 2005
Location: Clearlake, Northern California
Posts: 2,116
Year: 1992
Coachwork: Blue Bird
Chassis: TC-2000 Frt Eng, Tranny:MT643
Engine: 5,9 Cummins
Rated Cap: 84
Great point!
And we should mention bleeders.
Look for bleeder valves in the hoses. They should be near the highest point in
the hose. These are fittings in the hose with a tiny "bolt" in it. They work a lot like
hydraulic brake bleeders. If you find any such, loosen them. Then top off the radiator
until antifreeze comes out the bleeder. Close the bleeder. Now the system is truly full.
__________________
Elliot
Millicent The Bus - roof raised two feet, toy-hauler tailgate.
http://www.skoolie.net/forums/f11/th...gate-1564.html
Elliot Naess is offline   Reply With Quote
Old 01-31-2007, 10:56 PM   #7
Bus Nut
 
KC10Chief's Avatar
 
Join Date: Jun 2006
Location: Edmond, OK
Posts: 529
Year: 1993
Coachwork: Carpenter
Chassis: International
Engine: 7.3 International diesel
Rated Cap: 60
Hmmmmm... This bus does have quite a few valves, but they're all in the engine compartment. They were all open. I didn't even think to look by the drivers seat. I'll check it out when it warms up a bit! Whatever it is, it has to be simple.
__________________
Matt
1993 International Carpenter 10 Window bus
7.3L diesel w/AT545
http://i74.photobucket.com/albums/i2...DSC02426-1.jpg
KC10Chief is offline   Reply With Quote
Old 01-31-2007, 11:38 PM   #8
Bus Crazy
 
Elliot Naess's Avatar
 
Join Date: Oct 2005
Location: Clearlake, Northern California
Posts: 2,116
Year: 1992
Coachwork: Blue Bird
Chassis: TC-2000 Frt Eng, Tranny:MT643
Engine: 5,9 Cummins
Rated Cap: 84
Quote:
Whatever it is, it has to be simple.
That's it, Matt. Keep that thought and apply simple logic. You'll be amazed at what
you can figure out. Your only problem right now is that overwhelmed feeling of
"being a new daddy"!
__________________
Elliot
Millicent The Bus - roof raised two feet, toy-hauler tailgate.
http://www.skoolie.net/forums/f11/th...gate-1564.html
Elliot Naess is offline   Reply With Quote
Old 03-04-2007, 01:01 PM   #9
Site Team
 
crazycal's Avatar
 
Join Date: Feb 2007
Posts: 4,087
Where is the Blue Bird store? I would like to get some of those pumps.
__________________
I'm hungry!

You Gotta Let Me Fly
crazycal is offline   Reply With Quote
Old 03-04-2007, 01:28 PM   #10
Bus Nut
 
oldog12's Avatar
 
Join Date: Aug 2006
Location: Illinois
Posts: 381
Quote:
Where is the Blue Bird store? I would like to get some of those pumps.
...Try these guys... Where is the Blue Bird store? I would like to get some of those pumps.


.
oldog12 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Free And Virtually Unlimited Fuel To Heat Your Home Youtube lornaschinske Everything Else | General Skoolie Discussions 3 10-13-2014 10:34 AM
What I saw on my way home from the firing range today. Abbott Everything Else | General Skoolie Discussions 5 02-02-2009 10:21 AM
First time you drove a school bus. ParadigmCrime Conversion General Discussions 24 12-07-2008 10:21 PM
Man Stole Miami-Dade Buses, Drove Them On Routes Steve Everything Else | General Skoolie Discussions 3 08-02-2008 12:46 AM
starting troubles when coming home today. Train-train Conversion General Discussions 3 10-15-2007 11:54 AM

» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:59 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.