Heater Controls - What goes where? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Xavier · 09-08-2018, 06:40 PM

Hey guys, just picked up a '68 C20 a few weeks ago in desperate need of some TLC. It's my first foray into something of this vintage so please excuse what may seem like a dumb question but my truck didn't have the heater Controls when I bought it. I picked up a control panel from a forum member and I yanked out the seat and scrubbed the cab floor in preparation for getting this heater control panel and cables installed. The problem is with no pre-existing control I'm not sure on the cable routing or even which lever is which function. Also, there is what I'm guessing is some kind of blower motor resistor? I snapped a photo for help identifying the mystery component.

I appreciate your help.

ryans69chevy · 09-08-2018, 06:57 PM

Looks like your resistor is broken. It bolts in at the top of your ducting where that hole is and two 5/16 screws are. Looks like everything else is connected except the cable that is laying on the passenger floor pan in your second pic. That cable connects to the bottom of the ductwork where the lever with a peg is hanging. It is shown in your second pic as well. There is a tab just to the left of the peg where the cable screws to. LMC has some nice detailed pics if you need.

Xavier · 09-08-2018, 07:03 PM

Yeah, as far as the Cabling I was just guessing with what I had and what seemed to make the most sense. I just couldn't figure out the routing for that lever on the bottom of the heater box and I was making guesses on which control they attached to. Where would I find LMCs diagrams? I've found the page with the cables but it doesn't show how they route.

ryans69chevy · 09-08-2018, 08:31 PM

I just looked on lmc as well and couldn't find it either. If I remember I thought I ran mine back behind the duct and then poked it out underneath. I could post a pic tom if you need.

**LockDoc** · 09-09-2018, 08:25 AM

-
Here is an older thread that I posted some pictures in.....

http://67-72chevytrucks.com/vboard/s...=heater+cables

And another thread with a tip on removing the cable retainer clips without breaking them.

http://67-72chevytrucks.com/vboard/s...d.php?t=211815

LockDoc

Xavier · 09-09-2018, 04:30 PM

Perfect, thanks! The one that swings back behind the heater box seems a little awkward but it works.

09-08-2018, 06:40 PM	#1
Xavier Registered User Join Date: Aug 2018 Location: Coatesville, PA Posts: 52	Heater Controls - What goes where? Hey guys, just picked up a '68 C20 a few weeks ago in desperate need of some TLC. It's my first foray into something of this vintage so please excuse what may seem like a dumb question but my truck didn't have the heater Controls when I bought it. I picked up a control panel from a forum member and I yanked out the seat and scrubbed the cab floor in preparation for getting this heater control panel and cables installed. The problem is with no pre-existing control I'm not sure on the cable routing or even which lever is which function. Also, there is what I'm guessing is some kind of blower motor resistor? I snapped a photo for help identifying the mystery component. I appreciate your help.

09-08-2018, 06:57 PM	#2
ryans69chevy Registered User Join Date: Sep 2010 Location: Casselton, North Dakota 58012 Posts: 1,053	Re: Heater Controls - What goes where? Looks like your resistor is broken. It bolts in at the top of your ducting where that hole is and two 5/16 screws are. Looks like everything else is connected except the cable that is laying on the passenger floor pan in your second pic. That cable connects to the bottom of the ductwork where the lever with a peg is hanging. It is shown in your second pic as well. There is a tab just to the left of the peg where the cable screws to. LMC has some nice detailed pics if you need.

09-08-2018, 07:03 PM	#3
Xavier Registered User Join Date: Aug 2018 Location: Coatesville, PA Posts: 52	Re: Heater Controls - What goes where? Yeah, as far as the Cabling I was just guessing with what I had and what seemed to make the most sense. I just couldn't figure out the routing for that lever on the bottom of the heater box and I was making guesses on which control they attached to. Where would I find LMCs diagrams? I've found the page with the cables but it doesn't show how they route. Last edited by Xavier; 09-08-2018 at 07:09 PM.

09-08-2018, 08:31 PM	#4
ryans69chevy Registered User Join Date: Sep 2010 Location: Casselton, North Dakota 58012 Posts: 1,053	Re: Heater Controls - What goes where? I just looked on lmc as well and couldn't find it either. If I remember I thought I ran mine back behind the duct and then poked it out underneath. I could post a pic tom if you need.

09-09-2018, 08:25 AM	#5
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,332	Re: Heater Controls - What goes where? - Here is an older thread that I posted some pictures in..... http://67-72chevytrucks.com/vboard/s...=heater+cables And another thread with a tip on removing the cable retainer clips without breaking them. http://67-72chevytrucks.com/vboard/s...d.php?t=211815 LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 09-09-2018 at 08:35 AM.

09-09-2018, 04:30 PM	#6
Xavier Registered User Join Date: Aug 2018 Location: Coatesville, PA Posts: 52	Re: Heater Controls - What goes where? Perfect, thanks! The one that swings back behind the heater box seems a little awkward but it works.



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