- Joined
- Nov 8, 2023
- Posts
- 82
- Reaction score
- 284
- Location
- Kalispell, Montana
- First Name
- Larry
- Truck Year
- 1981
- Truck Model
- C10
- Engine Size
- 250 6 cylinder
It went well and quickly. Disconnect coolant hoses. Take out the glove box and ash tray assemblies, removed the 3 control cables, one screw to the defroster Y pipe, and one 10mm head screw on the far-right interior firewall. Burned off the paint and coating from the three 1/4" studs that protrude thru the firewall near the fan motor.
and the heater box actually fell out on its own.
It's dusty and dirty but I did expect more debris inside, not too much:
And here is the weeper, on the return tank end. Nothing obvious why it started, but it was wet in that area:
Heater core is held in place by a round retainer bar near the hose connections, and a flat rectangular retainer bar on the return tank end.
Mine were rusty and dirty, but cleaned up ok:
Since these steel pieces are in direct contact with the brass heater core, I plan to wrap them with rubber tape or put heat shink on them to prevent the dissimilar metals from direct contact.
You must be registered for see images attach
and the heater box actually fell out on its own.
You must be registered for see images attach
It's dusty and dirty but I did expect more debris inside, not too much:
You must be registered for see images attach
And here is the weeper, on the return tank end. Nothing obvious why it started, but it was wet in that area:
You must be registered for see images attach
Heater core is held in place by a round retainer bar near the hose connections, and a flat rectangular retainer bar on the return tank end.
Mine were rusty and dirty, but cleaned up ok:
You must be registered for see images attach
Since these steel pieces are in direct contact with the brass heater core, I plan to wrap them with rubber tape or put heat shink on them to prevent the dissimilar metals from direct contact.
