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C3 Corvettes, 1968 - 1982
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Ducting Diagram

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Ducting Diagram

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Old

Jul 23, 2008 | 08:23 PM

#1

AimHigh

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Drifting

Joined: May 2008

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From: Choctaw Country

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Ducting Diagram

Ok guys, got good cold air and lots of it,,,,,just ain't getting it where I want it.

I have air in the ducting but now I'm loosing.
I got nice cold air gushing out of the heater duct on the drivers side.

anyone got a GOOD diagram of the ducting and an idea why I'm getting the big foot freeze?

thanks

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Old

Jul 23, 2008 | 09:10 PM

#2

Jud Chapin

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From: Wellington, FL

St. Jude Donor '11 thru '25

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Sound like a vacuum problem. Check all your vacuum hoses under the dash for leaks and proper hook up.

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Old

Jul 23, 2008 | 09:26 PM

#3

AimHigh

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Drifting

Joined: May 2008

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From: Choctaw Country

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Thanks JC...I have and all appears to be functioning fine.
Much as I don't want to (Its 103 here now) I guess I'mma gonna havta take it all back done and look for a bad seal or something.
Sure wish I had a pic of what does what, seals off what etc...

thanks

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Old

Jul 23, 2008 | 11:54 PM

#4

...Roger...

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From: Dayton, Ohio

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Quote:

Originally Posted by Jud Chapin

Sound like a vacuum problem. Check all your vacuum hoses under the dash for leaks and proper hook up.

Look for vacuum leaks.The default for lack of vacuum is floor heat.

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Old

Jul 24, 2008 | 01:39 PM

#5

ray79

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Joined: Nov 2005

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From: Clifton VA

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I found out that there should be a moulded plastic duct from heaterbox to dash outlet on my 79. Found one at a salvage outlet.

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Old

Jul 25, 2008 | 10:29 PM

#6

AimHigh

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Drifting

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From: Choctaw Country

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Thanks guys I'll give it a look again..

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Old

Jul 25, 2008 | 11:31 PM

#7

Jud Chapin

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From: Wellington, FL

St. Jude Donor '11 thru '25

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You are welcome and good luck.

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