| Author |
Message |
Michael Lewis (Puffbus)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 24, 2005 - 10:28 pm: | |
I'm not getting any heat to the drivers water valve on the left hand side of the coach. The radiator pipes on this side are considerably cooler than the right side, as well. Actually, after idling for an hour, I can still put my hand on either of these. I have both close-off valves open and the heater valve in the curb side front bay was replaced and seems to be working. I can't find any other valves, but it seems that water is just not circulating to the front, as all pipes are cold. Any suggestions?
Thanks,
Michael |
John that newguy
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 24, 2005 - 11:25 pm: | |
Look inside the first bay on the door side, right side looking in...
See if there's a small box in the upper right, housing another valve. |
Michael Lewis (Puffbus)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 24, 2005 - 11:33 pm: | |
Yep, that's the heater control valve. Missing when I got the bus. Got one from Sam Caylor.
Michael |
akrom
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 24, 2005 - 11:39 pm: | |
Looks like ol jtng finally got one right. akrom |
Jtng
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 24, 2005 - 11:49 pm: | |
Awww jeez... gimme a break here..
(HAR) |
Jtng
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 24, 2005 - 11:53 pm: | |
Mike-
Make sure the water's flowing thru the valve. You might want to
"hard wire" it to a switch, since the sensors may have been removed.
Or, if it's hot enough out, the heat will cause the valve to stay closed. |
Glenn MC-9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 25, 2005 - 6:27 am: | |
Michael,
Make sure your water valves are indeed all the way open. Sometimes these old "gate valves" will give you a problem (BTDT).
I had the one on the passenger side give me a problem and I replaced it with a "ball valve". Turned out the gate had come loose from the stem.
Good luck,
Glenn |
Jim Ashworth (Jimnh)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 25, 2005 - 8:25 am: | |
The solenoid heater valve in the front bay only controls flow to the big heater coil. The driver and dash flow bypasses this with 3/4" copper lines. Did you bleed air out of the dash heater core? That may stop the flow.
Jim |
Richard Bowyer (Drivingmisslazy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 25, 2005 - 8:30 am: | |
"after idling for an hour, I can still put my hand on either of these"
At idle, the engine will generally not come up to temperature. The warmest mine would get was about 100 degrees while ideling for longer periods of time.
Richard |
Michael Lewis (Puffbus)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 25, 2005 - 11:21 am: | |
The main heater core is getting warm, indicating it is getting water. That means the heater valve and the gate valves are open. Only the drivers heater core is not getting warm.
Jim, Are you advising that I bleed the dash heater core?
I'll dig around in there today and see if I can discover where the 3/4" lines begin.
I have a marine hot water heater to install which uses recirculated water from the engine, so also need to find a place to tap the lines for that.
Michael |
Jim Ashworth (Jimnh)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 25, 2005 - 3:21 pm: | |
The 3/4" lines go from the solenoid area forward. And yes, bleed the front heater core, it is a high point for the system and air doesn't flow downhill in a pipe.
As to the heat for the hot water, tapping into these heater lines is a commn thing to do. You theoretically have the circulation built in with the circulation to the heater core. You're just temporarily not getting water to the front. |