Dash a/c

[wayne lawrence]

Type 2 a/c on 76 Birchaven.

Temperature switch in the front a/c box. Is the capillary tube supposed to touch the evaporator fins?

http://www.gmcmhphotos.com/photos/data/7085/medium/IMG_20170909_172629.jpg

http://www.gmcmhphotos.com/photos/data/7085/medium/IMG_20170909_172617.jpg

--
Wayne Lawrence
76 Birchaven
Bellflower CA
w.lawrence

 

[Matt Colie]

> Type 2 a/c on 76 Birchaven.
> Temperature switch in the front a/c box. Is the capillary tube supposed to touch the evaporator fins?
>

Wayne,

In other systems, that temperature control is supposed to prevent evaporator freeze-up. If that is the case here, it needs to be really close but
touching should not matter.
Maybe someone else knows the GMC system better than I do.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit

 

[emerystora]

It doesn't matter about the tube touching but the bulb at the end of the tube should never touch. There is usually a clip of some kind to keep the bulb away, but close, to the fins. It is supposed to measure the air temperature not the fin temperature.

Emery Stora

>

>> Type 2 a/c on 76 Birchaven.
>> Temperature switch in the front a/c box. Is the capillary tube supposed to touch the evaporator fins?
>>
>
> Wayne,
>
> In other systems, that temperature control is supposed to prevent evaporator freeze-up. If that is the case here, it needs to be really close but
> touching should not matter.
> Maybe someone else knows the GMC system better than I do.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
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