My Willys 3A and 3B Community

TECH FAQ SECTIONS => BODY and trim => Topic started by: Chuck W. on March 09, 2026, 04:24:57 PM

Title: Fresh Air Heater
Post by: Chuck W. on March 09, 2026, 04:24:57 PM

I finally put the finishing parts on my fresh air heater. I found the original style knobs and had them engraved as per the originals. I also found a photo of a NOS heater and realized that the instruction decal I had made years ago was wrong, so I had a new, correct one made and installed. I now can call this project done!
My finished heater:
(https://www.surfacezero.com/g503/data/500/medium/IMG_29571.JPG)
NOS heater:
(https://www.surfacezero.com/g503/data/500/medium/s-l1600_1_9.jpg)

Title: Re: Fresh Air Heater
Post by: Rus Curtis on March 09, 2026, 10:42:12 PM

I can imagine the knobs were a challenge.  Looks real good!

Title: Re: Fresh Air Heater
Post by: tow hook on March 24, 2026, 12:38:34 PM

Were did you find parts ? i' ve been wanting to restore mine as well   :D the pull fan knob is broken, it slides right out :'( the rest seems to be ok

Title: Re: Fresh Air Heater
Post by: Chuck W. on March 25, 2026, 12:00:59 AM

My fan switch was OK and the shaft was threaded 10-32, so I ordered a couple of Black Bakelite Mercury style knobs that were threaded 10-32 from LDS Interprises and had them engraved at a local computer engraving company. They also did the vinyl control graphics.  My heater water control valve cable was missing, so I found a choke cable on e-bay that was also threaded 10-32 .
https://www.dashswitches.com/collections/knobs/products/copy-of-black-bakelite-domed-style-knob (https://www.dashswitches.com/collections/knobs/products/copy-of-black-bakelite-domed-style-knob)

https://www.ebay.com/itm/296628726846 (https://www.ebay.com/itm/296628726846)

I can probably get my engraving shop to do another set of knobs and the graphics if you want.

Title: Re: Fresh Air Heater
Post by: rkmiller on August 26, 2026, 11:37:28 AM

I have been looking for switches too.  I have 3 CJ3B heaters and attempting to make one good one.  I need to test my switches, but looking online this one may work.  I am considering purchasing it to see as it would be nice to have a new one.  I took one of mine apart and it is fairly simple.

https://scoutparts.com/Heater_fan_Switch_Scout_II_modern_replacement_part/p18843?srsltid=AfmBOoqYf-7zcaXsRzh3wTBYUnn2YbuGuVoCnDJlnXkKgMdtvBcW1Krh

Title: Re: Fresh Air Heater
Post by: tow hook on September 02, 2026, 09:52:29 AM

thanks for info and the links :)