| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,034 Posts1,055,548 Members48,425 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Nov 2010 Posts: 304 Shop Shark | | Shop Shark Joined: Nov 2010 Posts: 304 | 1952-3100. Hooking up new 12V heater motor and sw. The sw. is a "standard" universal switch. There are two connection posts on the back. Is it correct to say that the red (hot) wire from the motor should go to the terminal that has what looks like a fuze with a wire wraped around it, or does hot go to the stand alone post? Then the black (ground) would go to the other one. Naturally a hot from ignition sw. goes in the same place as hot from motor. Right? Thanks
'52 3100 "once a Marine, always a Marine!! | | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | If your switch looks like This It should be wired like This The switch grounds by being clamped to the dash If that is not your switch disregard this post. That switch has a light in the knob and if wired backwards the light will be on all the time, the light should come on only when the heater is running. | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | .....AND if it's like mine the light gets brighter the faster the fan blows.
Save a life, adopt a senior shelter pet. The three main causes of blindness: Cataracts, Politics, Religion. Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Nov 2010 Posts: 304 Shop Shark | | Shop Shark Joined: Nov 2010 Posts: 304 | OK thanks. Yes my heater sw. looks like that, it even has a light that I didn't even see. Black wire coming off motor just goes to a seperate ground then. 10-4 thanks again, I just didn't want to burn up new parts!!!!
'52 3100 "once a Marine, always a Marine!! | | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | My motor was originally grounded to the case ...pic... ...pic... I grounded my new 12v the same way | | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | The switch grounds by being clamped to the dash Just to be clear, the switch needs no ground. The switch is just a conduit for power between the battery and the heater. The actual ground comes from the heater motor itself. Jeff | | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | The switch grounds by being clamped to the dash Just to be clear, the switch needs no ground. The switch is just a conduit for power between the battery and the heater. The actual ground comes from the heater motor itself. Jeff It needs to be grounded for the light to work | | | | | Joined: Oct 2010 Posts: 171 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2010 Posts: 171 | And it may "smoke" the first time you send power through it. But that is normal. And as far as "looks like a fuze with a wire wraped around it" don't let ANYTHING touch the "spring" as it will get super hot, fingers, wires......that kind of thing
....David
| | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | It needs to be grounded for the light to work Thanks! Somehow I blanked out at that part. I didn't even know these came with lights. Jeff | | | | | Joined: Nov 2010 Posts: 304 Shop Shark | | Shop Shark Joined: Nov 2010 Posts: 304 |
'52 3100 "once a Marine, always a Marine!! | | |
| |
| |