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Old 11-22-2014, 11:12 AM   #1
justcuz
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Re: 70 C-20 4x4 Suburban Father/Son project

Nice work Nick! Those wiring photos before the project looked a little scary.
I still want to know where the coolant sight glass in the heater hose came from?
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Old 11-24-2014, 11:51 AM   #2
notchbackgta
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Re: 70 C-20 4x4 Suburban Father/Son project

Quote:
Originally Posted by justcuz View Post
I still want to know where the coolant sight glass in the heater hose came from?
I think that is a coolant shut off for the heater core for an aftermarket A/C system, but I could be wrong
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Old 11-29-2014, 01:27 PM   #3
justcuz
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Re: 70 C-20 4x4 Suburban Father/Son project

Is it electric? I see a possible green wire going to it. I thought is was a sight glass or a coolant filter of some type. A sight glass would be nice to have, since it would show air pockets in the system while running, you could also check your water pump performance easily that way too.
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Old 11-30-2014, 01:13 AM   #4
mosesburb
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Re: 70 C-20 4x4 Suburban Father/Son project

If it has a green wire going to it then it is the heater control valve. Yes, it is electrical and it is hotter than the hubs of hell in normal operation. I inadvertently touched it with a finger tip and it almost immediately blistered (temp not related to coolant temp). It is part of the Vintage Air kit.

Maybe the owner can tear himself away from vacation planning and post up some more pics of progress...... I know for a fact there has been some...
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