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09-12-2009, 03:36 PM
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#1 |
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Registered User
Join Date: May 2009
Location: id
Posts: 23
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heat lever operation?
Does the heat lever in the switch assembly operate a valve behind the fire wall?
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67 C50 dump truck 69 C10 LWB 70 C30 72 K5 Blazer |
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09-12-2009, 05:08 PM
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#2 |
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Registered User
Join Date: May 2009
Location: id
Posts: 23
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Re: heat lever operation?
I tore it all apart and the cable runs from the lever to a bracket behind the fire wall. It doesn't move anything. WTF is the purpose of the cable?
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67 C50 dump truck 69 C10 LWB 70 C30 72 K5 Blazer |
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09-12-2009, 07:26 PM
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#3 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: heat lever operation?
The heat lever cable hooks to the temperature door which is on the outside of the firewall. The cable goes through a plastic plug to connect to the temperature door. If you pull the plug you can see the door and where the cable hooks up.
The heat lever positions the door from all air routed through the heater core or no air through the heater core. By controlling the amount of air flowing through the heater core the air temperature coming out of the heater can be controlled. Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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09-12-2009, 07:28 PM
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#4 |
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Registered User
Join Date: May 2009
Location: id
Posts: 23
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Re: heat lever operation?
Please disregard this thread, the person who submitted it is a total dumba$$ and has figured out what a stuck flapper looks and acts like. Thank you for your time, Ironhead.
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