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06-14-2013, 03:39 PM
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#1
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Heater shut off valves
1986 bluebird w a hurri hot system. The previous unit in the back of the bus was heater and ac. There are 4 hoses on the back. Are the smaller diameter hoses the heat and the larger ones the ac? I just want to install a heater. No ac.
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06-14-2013, 03:55 PM
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#2
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Bus Geek
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
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Re: Heater shut off valves
Not sure if this will help
The hearter hoses should be rubber with maybe a 1in ID. And low pressure
The ac lines I would think would be high pressure type line (due to lines going to evaporator)
Can you trace it back to the front?
If ithooks into the engine block it would be heater
If it hooks to an accessary attached to the engine driven by a belt....than I would say its ac
Let us know how it turns out
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
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06-14-2013, 04:10 PM
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#3
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Re: Heater shut off valves
Thanks. Btw do both valves on the engine need to be open for the radiator fluid to flow to the back. I'm trying to trace them but I can't seem to tell
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06-14-2013, 04:56 PM
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#4
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Re: Heater shut off valves
Im trying to post pics but I keep getting an error message :Sorry, the board attachment quota has been reached. Any way to post pics? Thanks
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06-14-2013, 06:42 PM
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#5
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Bus Geek
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
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Re: Heater shut off valves
Yes both valves need to be open to complete the loop....photobucket is your friend
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
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06-14-2013, 06:44 PM
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#6
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Bus Crazy
Join Date: Aug 2011
Location: Central Tennessee
Posts: 1,093
Year: 1973
Coachwork: Blue Bird
Chassis: All American
Engine: CAT 1160 V-8 Diesel
Rated Cap: 72
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Re: Heater shut off valves
Go to Photobucket. Establish a folder and name it.
Upload photos from your computer to the folder that you made.
Once they have been uploaded, click on the star on the upper right of the thumbnail. A screen will appear on the right. Click where it says forum. It will say "copied"
Then paste it on your forum posting. You will see the image code.
Then when you post onto the forum, you will see the photo.
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06-14-2013, 07:40 PM
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#7
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Re: Heater shut off valves
Are the shorter hoses the ac hoses?
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06-14-2013, 08:33 PM
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#8
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Re: Heater shut off valves
Thanks for the help and the directions on how to post pics! You guys are great.
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06-15-2013, 07:03 AM
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#9
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Bus Crazy
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 2,436
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Just the two of us.
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Re: Heater shut off valves
The air conditioning lines are the ones that have the steel braid inside. Heater just use cloth braid.
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06-15-2013, 12:45 PM
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#10
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Re: Heater shut off valves
Ok I'm into the project! I open the valves and I get a small amount of fluid to the intake of the pump when the engine is reving. When i shut down the engine i get a large bolus of fluid to the intake. Is there a thermocouple or sonething i am missing to get flow to the pump? Once I figure out how to get flow to the pump I will check the pump itself
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06-15-2013, 01:46 PM
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#11
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Bus Crazy
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 2,436
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Just the two of us.
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Re: Heater shut off valves
I'm not really familiar with that system. If in fact those hoses are heat/AC an automotive cooling system would have a hard time getting coolant that high. There would have to be some sort of pump capable of creating lift. The engine water pump and most heater circulation pumps don't do that, all they do is circulate.They need to have the inlet flooded(they don't suck) If there isn't an electric pump somewhere between the engine and where those hoses are, the unit must have had a pump. And I would doubt that, it's easier to push water than to pull it
Typically the hose that comes off of the engine water pump is the discharge (going to the heater) If you only want heat, it would be better to mount a heater on the floor, making sure that it is below the level of the radiator tank. Since heat rises, and you mount the heater low it's more likely to heat the space better. Sure you can blow it down, but the more blow it around the faster it cools off.
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06-15-2013, 04:09 PM
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#12
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Mini-Skoolie
Join Date: Mar 2010
Posts: 25
Year: 1986
Engine: Gasoline
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Re: Heater shut off valves
There is a pump halfway between the engine and the back. Not a huge amount of fluid gets to the pump tho?
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06-15-2013, 09:23 PM
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#13
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Bus Geek
Join Date: Apr 2012
Location: So Cal
Posts: 3,231
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
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Re: Heater shut off valves
Without a doubt the two cut hoses seen in your pic are A/C based on the thickness of the hose wall. Try blowing compressed air through the cut hoses and see if you get refrigeration oil or antifreeze shot back at you. BTW, antifreeze tastes sweet. Good luck!
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06-16-2013, 06:23 AM
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#14
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Bus Crazy
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 2,436
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Just the two of us.
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Re: Heater shut off valves
Quote:
BTW, antifreeze tastes sweet
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I know why I know this, just wondering how you do.
FYI. If it's part of a vehicle,liquid or metal. I have had it in my mouth, eyes, nose and ears at some point in time
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06-16-2013, 12:59 PM
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#15
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Bus Crazy
Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 2,436
Year: 1991
Coachwork: Bluebird
Chassis: AARE
Engine: 3116 Cat 250hp
Rated Cap: Just the two of us.
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Re: Heater shut off valves
Just been at it a loooooong time.
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06-16-2013, 02:01 PM
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#16
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Bus Nut
Join Date: Dec 2009
Location: MN
Posts: 732
Year: 1991
Coachwork: Wayne
Chassis: International 3800
Engine: DT466
Rated Cap: 72
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Re: Heater shut off valves
Quote:
Originally Posted by somewhereinusa
Quote:
BTW, antifreeze tastes sweet
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FYI. If it's part of a vehicle,liquid or metal. I have had it in my mouth, eyes, nose and ears at some point in time
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YEP! My wife thinks I'm "special". Sidenote...an earful of gear lube feels GROSS!!
__________________
The journey is the destination...
Brutus
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06-16-2013, 05:13 PM
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#17
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Bus Geek
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
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Re: Heater shut off valves
Quote:
Originally Posted by JakeC
Quote:
Originally Posted by somewhereinusa
Quote:
BTW, antifreeze tastes sweet
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FYI. If it's part of a vehicle,liquid or metal. I have had it in my mouth, eyes, nose and ears at some point in time
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YEP! My wife thinks I'm "special". Sidenote...an earful of gear lube feels GROSS!!
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Only when you push it in deeper trying to wipe it out with greasy fingers
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
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06-16-2013, 09:47 PM
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#18
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Bus Geek
Join Date: Apr 2012
Location: So Cal
Posts: 3,231
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
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Re: Heater shut off valves
Hey Somewhere, I once had a Studebaker Avanti with its backwards opening hood. I had taken the car to a repair shop for a generator problem which took some time to solve (while the car was running). I noticed that the upper radiator hose had begun to swell and turned to let the mechanic know that the engine was overheating. Just as I opened my mouth to speak, the entire upper radiator hose fitting blew out of the radiator dumping the scalding antifreeze in my face (and into my mouth). I recieved 3rd degree burns to the face and everywhere my clothes touched my skin--around my sun glasses, t shirt collar, shoulder seams,arm pits, tighty whities elastic and the top of my socks Left a mark or two--oh well, Ya pays Ya money an' ya takes ya chances! I hope your method of discovering this little known fact was less tramatic than mine.
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06-17-2013, 10:58 AM
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#19
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Bus Crazy
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,968
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
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Re: Heater shut off valves
Quote:
Originally Posted by ol trunt
Hey Somewhere, I once had a Studebaker Avanti with its backwards opening hood. I had taken the car to a repair shop for a generator problem which took some time to solve (while the car was running). I noticed that the upper radiator hose had begun to swell and turned to let the mechanic know that the engine was overheating. Just as I opened my mouth to speak, the entire upper radiator hose fitting blew out of the radiator dumping the scalding antifreeze in my face (and into my mouth). I recieved 3rd degree burns to the face and everywhere my clothes touched my skin--around my sun glasses, t shirt collar, shoulder seams,arm pits, tighty whities elastic and the top of my socks Left a mark or two--oh well, Ya pays Ya money an' ya takes ya chances! I hope your method of discovering this little known fact was less tramatic than mine.
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OUCH!!!!!
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