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| | | Forums66 Topics128,076 Posts1,055,922 Members48,430 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | After a few hours of research on Heater Control Valves, I still dont understand why they use a refrigerant filled capillary instead of a screw. What am I missing? Does it have to do with finer tuning of the output? Isnt this the exact same thing as a standard through brass ballcock like we use on air compressors to regulate air or water flow? They went to alot of trouble to make these for all makes and models of vintage vehicles so there HAS to be a reason. http://www.ebay.com/itm/Vintage-4way-Manual-Brass-Heater-Control-Valve-Everco-6746-/331553123734 | | |
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