Yeah, I had emailed those guys. Their prices are up there. This is a guy who is supposed to do it as a hobby. I am waiting on a return email to see what his prices are like. He seemed more down to earth. I will post back when I hear from him.
Seems like the engine coolant heater (hot water only) has only one speed. The personal heater (hot air only), has two speeds - high & low. The engine heater works on convection and it does quite well at it. It puts out boiling coolant & the various "bubbles"of steam rise rapidly and forces the coolant through the engine. The exhaust goes to a shroud around the oil pan and pre-heats the oil. If that little exhaust pipe is not in good shape, it can leak exhaust fumes around and into the cab, while its running. Both heaters work well. I always start the personal heater on high though.
I have parts missing on my coolant heater. Also need the control box. But would like to replace the entire unit. If the truck is serious cold soaked (-50, etc.), it will take a good hours heating, to start the truck. I like to see lots of heat on them.
My earlier M211 & M37, were both equipped with a version of these heaters.
....... The engine heater works on convection and it does quite well at it. It puts out boiling coolant & the various "bubbles"of steam rise rapidly and forces the coolant through the engine. The exhaust goes to a shroud around the oil pan and pre-heats the oil.
I have parts missing on my coolant heater.
Lee in Alaska
At some point in time they must have done away with the coolant circulation pump shown in the TMs for my 8x8...
What parts are you missing, I may have something?
The concern about the exhaust fumes from around the engine when heating the oil pan is real IMHO, if the cab is not air tight or has "positive" pressure from the personnel heater.
Love the thing, just needs a little operator training to be safe.
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
I plan to put coolant heaters on 2 trucks. A non-turbo multifuel deuce, & a Cummins powered M813A1.
Can anyone tell me where to connect into the cooling system on these trucks?
Any help or pictures appreciated.
Eric
CBVET
__________________
Eric
CBVET "Construimis, Batuimus"
M813A1 Soft Top, Super Singles
M35A2 w/w, Hard Top
M35A2 w/w, turbo, Soft Top, Singles, & steel "riot" box
M332 Ammo Trailer
M103 Generator Trailer
M105 Trailer
Life Member Veterans of Foreign Wars
Life Member National Rifle Association
I recently got a Benmar heater control just like the one Ethan showed earlier. Doesn't have the High/Low switch as typically used with the Southwind personnel heater.
I'm thinking this may work okay with the Southwind coolant heater I have. I don't think High/Low is important for that unit.
I guess I'll need to test the output pins compared to the control for the personnel heater.
Eric
CBVET
__________________
Eric
CBVET "Construimis, Batuimus"
M813A1 Soft Top, Super Singles
M35A2 w/w, Hard Top
M35A2 w/w, turbo, Soft Top, Singles, & steel "riot" box
M332 Ammo Trailer
M103 Generator Trailer
M105 Trailer
Life Member Veterans of Foreign Wars
Life Member National Rifle Association
Finally found the coolant heater with the proper circulation pump as called out in the 8x8 TMs (except for the correct mounting brackets, but those can be fabricated).
The tag states that it was tested in 1982, including for high and low speeds.
Looking forward to testing it again...
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
Nice. I picked up a coolant heater with the control box on Ebay. The heater on my M818 has not fired yet. They fuel pump was disconnected. I need to check fuel flow. I also found that the light on the controller does not turn on even though the box does have power going in. I now need to sit down and take the box apart and check everything. Good catch Bjorn.
__________________
Chuck Graham
1969 Kaiser-Jeep M35A2
Chuck, make sure that the grounding of the control box is intact.
The lamp is tested by pushing it ("Push to test"), that way you know that the all important light works and ground is connected.
Here is the controller for the m656 (cargo), the xm757 (truck tractor) also had a fuel tank selector switch.
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
Yeah, I had emailed those guys. Their prices are up there. This is a guy who is supposed to do it as a hobby. I am waiting on a return email to see what his prices are like. He seemed more down to earth. I will post back when I hear from him.
Did you ever get the contact info?....It would be nice to be able to rebuild the fuel valves I have sitting around, I can always use some spare parts, gaskets, O-rings etc....
__________________
Bjorn
MEP-018A (needs new generator head)
Avatar: XM757 in OK prepared for 1,000 mile trip home. Part of 6,000 mile journey in 2006.
1968 M49A2C modified with 1960 M756A2 truck bed and 1975 HIAB 765A knuckleboom, exhaust brake, VIC-1 and more.
1969 Ford XM757 8x8, 5-ton Pershing 1A truck tractor...the "improved MV".
"Some things can't be made better, just differently......a lot of things actually"
