U-channel behind heater box

[65chevysub]

I was working on my Sub yesterday, and came across a piece of "U-Channel" behind where the heater box mounts under the cowl panel. I cleaned and repainted it, and reinstalled it, but can anyone tell me what it's for? It seems like a shield of some sort. One other thing. On Thrift-Air heater switches, there is a set of 3 terminals for the heater motor, and one single terminal below the 3. Mine has come out of the switch, as it got hot and melted the plastic terminal cover. What is this single terminal for, and has anyone used the GM heater switch/cable combo listed in the CI catalog and how does it work?
Thanks for any info

[pimpston65]

Originally Posted by 65chevysub

I was working on my Sub yesterday, and came across a piece of "U-Channel" behind where the heater box mounts under the cowl panel. I cleaned and repainted it, and reinstalled it, but can anyone tell me what it's for? It seems like a shield of some sort. One other thing. On Thrift-Air heater switches, there is a set of 3 terminals for the heater motor, and one single terminal below the 3. Mine has come out of the switch, as it got hot and melted the plastic terminal cover. What is this single terminal for, and has anyone used the GM heater switch/cable combo listed in the CI catalog and how does it work?
Thanks for any info

its a gutter for water accumalation

[pimpston65]

Originally Posted by pimpston65

its a gutter for water accumalation

the wire should be brown, its a jumper the hooks to the junctionbox that goes to the heater tab on the box

[63burban]

If heater wires get hot, most likely your heater motor is pulling to much power and should be replaced.

[65chevysub]

That probably explains the "grinding" type noise when I put the motor on. I oiled everything up, to see if that does it. Thanks everyone

[63burban]

Replace the motor !