Next up remove the Heater Box - Seeking education - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**71CHEVYSHORTBED402** · 11-29-2015, 02:14 PM

71 C-10 tear down - all new to me

1. Wire harnesses & receptacle: Can you describe each of the two plugs mounted onto the RH side of the heater box? What are they called, and what's the receptacle unit called? Edit: It's the Blower Relay.

2. Heater core hoses (5/8" inlet, 3/4" outlet). I'd like to keep this running as long as possible. There's a lot of confusing information for bypassing "the" heater core. If I plug the ends of each hose, does that create a recirculating concern? Suggestions? It's only temporary, and the truck doesn't even leave the driveway.

3. Why do I see two heater cores......WTH? Edit: Ah, Evaporator Core....Yeah, I'm pretty green.

4. Other than good notes, pictures and the obvious, (I won't reassemble this for two years plus),any suggestions for removal? Should I remove the evaporator core assembly before the heater box?

Thanks for any advise.

11-29-2015, 02:14 PM	#1
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,391	Next up remove the Heater Box - Seeking education 71 C-10 tear down - all new to me 1. Wire harnesses & receptacle: Can you describe each of the two plugs mounted onto the RH side of the heater box? What are they called, and what's the receptacle unit called? Edit: It's the Blower Relay. 2. Heater core hoses (5/8" inlet, 3/4" outlet). I'd like to keep this running as long as possible. There's a lot of confusing information for bypassing "the" heater core. If I plug the ends of each hose, does that create a recirculating concern? Suggestions? It's only temporary, and the truck doesn't even leave the driveway. 3. Why do I see two heater cores......WTH? Edit: Ah, Evaporator Core....Yeah, I'm pretty green. 4. Other than good notes, pictures and the obvious, (I won't reassemble this for two years plus),any suggestions for removal? Should I remove the evaporator core assembly before the heater box? Thanks for any advise. __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly guide (kit) for restoring this truck from the ground up, complete with details including full hardware descriptions. Much of the info. applies to all 67-72 GM. My build thread, with some info. about the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 Last edited by 71CHEVYSHORTBED402; 12-01-2015 at 12:34 AM.



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