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Old 05-22-2012, 07:53 PM   #9
motornut
78K & 79C Jimmys
 
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Join Date: Nov 2009
Location: Ottawa Ont CANADA
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Re: How much defroster air?

Quote:
Originally Posted by tucsonjwt View Post
Thanks. I will experiment with that threaded rod setting. I have mine set at about where the picture shows it - seems like not quite full blast for defrost.
To go 75% to 100 %,the flow from feet to head is done inside the "air box"
Can't see the holes from outside it,by the gas pedal
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1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350

Last edited by motornut; 05-22-2012 at 08:59 PM.
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