[DeTomaso] AC Expansion Valve capillary tube placement

John Taphorn jtaphorn at kingwoodcable.com
Wed Oct 10 23:21:46 EDT 2012


Ahhh, very good Barry.  Now I realize that I am missing one of those as 
well.  2 capillary tubes.  The memory gets clearer.

Thanks
JT

On 10/10/2012 10:15 PM, B. Seib wrote:
> John
>
> I think it is the capillary tube from the Icing switch that goes through a
> small grometted hole on the side of the heater box into the evaporator core.
> As far as I know, the expansion valve capillary tube is fastened to the
> copper pipe exiting the evaporator.
>
> Barry
>
> ----------------------------------------------------------------------------
> ----
> John Taphorn jtaphorn at kingwoodcable.com
> Wed Oct 10 21:40:36 CDT 2012
>
>
> I am presently restoring a GT5 converted from a '73 model.  I acquired
> the car w/o AC and am currently sourcing parts for a system with front
> mounted condenser.  Searching for an expansion valve (EV), I came across
> this article that was the first to provide guidance on the positioning
> of the EV unit's capillary tube.
> http://ra.danfoss.com/TechnicalInfo/literature/manuals/01/PF000G102_chapter_
> 01.pdf
>
>   From previous dissections of Pantera heater boxes, I surmised that the
> capillary tube was slid between two rows of cooling fins in the
> evaporator to determine the presence of ice.  However, this article
> champions that the tube should be strategically attached to the copper
> pipe exiting the evaporator between 1:00 or 10:00 on the pipe's
> circumference.
>
> Curiously, a heater box assembly I acquired for the Pantera has the
> capillary tube set up this way.  This was different from other Pantera
> set-ups I had seen.  I had assumed the previous mechanic had been to
> lazy to insert the tube properly through the box into the evaporator.
> The article I reference suggest otherwise that he may have been better
> informed.  My limited experience with about 5 Panteras is that all of
> them had the capillary tube inserted between the evaporator's cooling
> fins .
>
> Any insights on the best approach.
>
> JT
>
>




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