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Old January 16th, 2008, 10:28 PM
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Tracy Lawson
94' d90
Join Date: Jan 2008
Location: Rose Hill, VA
Posts: 66
Cable on heater box

Hello I am new to the defender 90 owners club and so far have been extremly pleased with the purchase of my 1994 d90. I have been reading all about it, and purchased the cd that contains a parts manual, owners manual, and shop manual. I have searched through all the publications I have but still can't find out what the cable on the side of the heater box is for. I know the top cable is the hot/cold damper for the heat. I can't find selector in the cab that moves the cable.

What can the cable be used for?
Thanks for any answers you can give me?
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Old January 17th, 2008, 05:16 AM
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Gren Thomas
1985 90 300tdi auto
Join Date: Feb 2005
Location: bridgend, wales , UK
Posts: 384
Hi Tracy, that cable controls a flap inside the heater box which alows or blocks airflow through the heater matrix, it is controlled by the blower speed control switch on the l/h side of the dash.

At the levers top most postion (0) there will be no air passing the heater, at the mid point only air pushed through the wingtop vent by ram effect will pass the heater, below the mid point you have the switched positions for the blower.

Welcome to 90 ownership.



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Old January 17th, 2008, 04:22 PM
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Craig Dickson
1995 D90 Red Soft top
Join Date: Sep 2003
Location: Boulder County, Colorado
Posts: 444
That is one clean engine compartment!!!!
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