Heater

Discussion topics on Willys Overland M series vehicles
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oilleaker1
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Post by oilleaker1 »

Both Rick and I also spaced the heater away from the toolbox face. I paid attention so a vertical tube would clear the dash face also. Works fine. John
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Bretto
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Post by Bretto »

Rick, I liked your idea of adding the ball valve to the water flow in the cab. Is that just an ordinary off the plumbing shelf valve at the hardware store?
With using it, do you find that you can lower the output temp by reducing the flow or is it not really effective? Should I go thru the effort of adding one is what I'm after.
Brett
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RICKG
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Post by RICKG »

Yep Brett-off the shelf ball valve. Don't really use it for heat adjustment, just on-off flow. Have the valve at rear of head too. Thought shut-off in cab handy w/o popping hood. Max spacer front of toolbox to rear of heater 1/2" to avoid clearance problem with diffuser and lower dash. :wink: Next Gen diffusers will be finished today so Bretto, Oilly watch your mailboxes!
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a
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Bretto
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Post by Bretto »

Thanks Bro!
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Post by Bretto »

oilleaker1 wrote:Both Rick and I also spaced the heater away from the toolbox face. I paid attention so a vertical tube would clear the dash face also. Works fine. John
So I just sat my heater unit on the floor to see it where it sits. I don't see how a vertical tube can clear the dash face. With the unit up against the toolbox, the blower's opening is slightly behind the dash face.
Rick, from your pics, I matched the numbers of your heater to mine and they are identical. Does your blower's opening sit under the dash slightly?
I just put in some expanded metal on the backside like yours and sweated in a ball valve. Did you anchor your tubing to that 1/4" hole on the blower housing? I am thinking I will, to eliminate any stress at the heater core joint.
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RICKG
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Post by RICKG »

It does sit under the dash. The new style diffuser is offset 45 deg and will clear the dash. I used the 1/4 hole on the blower for stress relief on the switch wiring. Parts are in the mail (USPO) today. You'll see. Phone me if you get a chance-I'm usually home.

I'll try to post a foto today-I upgraded to the new style too, performs better.
Basically a modded 3" abs 30 deg street el. You'll enjoy about 30-45 deg of rotation on the blower nozzle.
Check here for fotos.
http://willysmjeeps.com/v2/modules.php? ... _album.php
http://willysmjeeps.com/v2/modules.php? ... _album.php
keep 'em rollin'
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Bretto
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Post by Bretto »

Fancyness! Looks like something I should talk into. :D
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RICKG
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Post by RICKG »

Bretto, Let's talk hoses, have you purchased hose yet? I found that the Gates hose I used is a loose fit on the copper tubing at the heater core. Obviously that copper tubing is not barbed. Have been dealing with coolant leaks (more weepy than leaky here). As long as you're sweating copper why not mod a coupler at the tube end to create a field expedient barb. I test fit a pc of hose cutoff on the bench with a copper mock-up this PM and am liking the tighter fit and will mod my own later.
keep 'em rollin'
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Bretto
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Post by Bretto »

Good idea and that tubing is pretty malleable to. I could see it getting crushed out of shape trying to seal a leak. Got a pic or a link to a pic of what you used as a barb? Suppose you could make a lip at the end of the tube with just a loop of copper wire sweated on.
I haven't bought my tubing yet.
Did you drill a hole in your floor for the front ear of the heater unit or just use the rear mounting ears. Its hard to put a drill thru a perfectly good floor.
There's these. Kinda bulky though in my opinion.
http://www.homedepot.com/p/SharkBite-1- ... /202270573
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wesk
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Post by wesk »

Take a look at the brass and steel hose splices for garden hose. They are barbed and you can cut one in half and take care of both nipples.

Image
Garden hose splice

Image
heater hose splice
Wes K
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Bretto
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Post by Bretto »

Great ideas thanks Wes.
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Post by Bretto »

Rick,
Got my diffuser in the mail today. Thanks buddy, that will work nicely. Looks pretty good on there to.
Cracked me up when I saw you put my name Bretto on the box.
Just waiting on a 12V motor I ordered. Hope it works. I did get the stock one that was on it to run. It was just a bit rusted in place seizing it. If the 12V one spins too fast for my liking, the 24v one may just be perfect. I found it neat that the stock one runs in one direction only. No matter how you connect it.
And yes, if John doesn't like the color, he'll have to get out his crayons.
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RICKG
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Post by RICKG »

Glad you like it! If it fits a little loose on the nozzle a bit of duct tape will give you the friction you need. It should swivel 30-45 deg, nice!
Happy New Year Pal!
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a
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Bretto
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Post by Bretto »

Here are some pics of the final install. I made the plate cuz I was too much of a wus to drill holes in a good floor and tool box. :oops:
I know those resistor coils are supposed to be up stream in the cool air flow but the heaters design doesn't allow for it since it sucks the air thru the core instead of blowing thru it. If it fails, I will still have a high setting.
Few things to button up but its making heat.
:twisted:
Image

Image

Image

Image

Image :twisted:
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4x4M38
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Post by 4x4M38 »

Good gravy bread that is a lot of beautiful work.

Glad we don't need those things down here. Took me all day
to clean up the one side and weld the gas can strap bracket
on mumy tailgate.

I'd never get to a heater..
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