Hot Water Heater Diffuser. Updated w/2 speed fan info.

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

I was looking for a diffuser here:
http://willysmjeeps.com/v2/modules.php?name=Forums&file=viewtopic&t=9420
Guys I talked to were muttering things like
"hens teeth", "needles and haystacks".

So 3 bucks and a Sunday afternoon later I came up w/this.
Not a true diffuser but it covers the port and will keep fingers
and toes out of the blower.

Materials: 3" ABS coupler, short pc 3" ABS pipe, expanded metal.
Doesn't look too out of place w/OD paint. It's a nice tight press fit
on the blower outlet.

Note the addition of the gate valve at the heater core inlet and switch
placement at arms reach from driver seat. The inline fuse is accessable also.

A couple of fotos of the diffuser itself can be seen here:
http://willysmjeeps.com/v2/modules.php?set_albumName=diffuser-details&op=modload&name=gallery&file=index&include=view_album.php

Sorry..i had an exploded view of the unit but couldnt load it due to file size Embarassed

_________________
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a

Bretto · Member Joined: Nov 24, 2010 Posts: 1390 Location: Orem, UT

Way too many levers Rick.
Very Happy

Looks good.
_________________
Brett
'51 M38
PHOTO DIARY OF MY BUILD

oilleaker1 · Posted: Tue Dec 09, 2014 6:46 am Post subject:

I'm doing the same. I was thinking about a 3 inch T or Elbow . I'd like to be able to aim it some. Where the first aid kit goes, I have another heater installed there. I plan on staying warm in my koenig full hardtop. I've seen t's with flapper valves internal on furnaces and was thinking I could make that in miniture. A steering column fan works great for defrost, if you can get the cab warm enough. Sadly, the old days of winter driving are not the same. Too much salt!!!!!! Evil or Very Mad

You have to pick fresh snow or stay off the maintained roads. Hope to see you and Brett in June! John

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

Bill_F · Posted: Tue Dec 09, 2014 9:13 pm Post subject:

Nicely done! Make my install look like it needs to be redone

oilleaker1 · Posted: Wed Dec 10, 2014 5:47 am Post subject:

All those levers would intimidate a thief into thinking I don't know how to steal this one! Wink

John

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

Anything worth doin is worth overdoin, or at least doin over till you get the
desired result. Added an airflow valve with a pc of 1/4" CRS and the lid
from a canna beans. Laughing

The freeflow from the blower would blow your hat off before!!. Still under 4 bucks.

Side view showing yet another lever..

Top view showing the valve partially open and the protective screen.

View from underside. A bead of JB weld did the trick here.

The can lid was cut w/can opener from the side of the can leaving the ridge for some rigidity then milled slightly for the crs to lay snug. The part fit well and has a 360 deg range of rotation. These cold wet days scream for a project like this!!
_________________
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a

Bretto · Member Joined: Nov 24, 2010 Posts: 1390 Location: Orem, UT

Homebrew ingenuity at its finest. I think it would be neat to incorporate a rheostat for fan speed control.
_________________
Brett
'51 M38
PHOTO DIARY OF MY BUILD

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

oilleaker1 · Posted: Fri Dec 19, 2014 6:19 pm Post subject:

Outstanding. Now, a washer welded on the shaft as a stop with a coil spring between it and the tube would apply resistence to help you adjust the flapper at the desired opening. John

oilleaker1 · Posted: Fri Dec 19, 2014 6:23 pm Post subject:

I have a set of pull type Heater switches I'm using on mine. One for each heater. They have a built in external resister that slows the blower in one of the two positions. All kinds of ideas! The farm boys that could fix anything during world War 2 were one of the reasons we won the war. When done, paint it OD and it looks factory! Laughing

John

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

What would that type switch be called? I'm surfin Graingers with no joy..
_________________
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a

oilleaker1 · Posted: Sat Dec 20, 2014 2:18 pm Post subject:

Rick, they came on my '51 M38, from when the fire dept. had it. They must have installed those switches years ago. They look like a CJ2A light switch, have heater written or engraved into the knobs, and have a external resister built in on top of the bakelite switch cover. I have no idea where you'd find them. Have you tried the reostat turn type heater switch? That might work on 24 volts even though it's 12 volt. Don't know. I'm surprised you didn't get some galvenised tin and bend up a diffuser just like the original. Flappers and all! John

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO


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