A/c expansion valve?
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A/c expansion valve?
I'm gonna order a new a/c system from rock auto. But I can't seem to find the expansion valve on my truck. To order the correct a/c kit. Where would I find expansion valve. It's a 79 f250 351m all help is appreciated. Also. What do you guys think about York compressor?
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Joined: Apr 2009
Posts: 14,333
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From: Stanley, VA
Assuming you have factory installed A/C
The expansion valve is against the firewall right where the hoses go into the evaporator case.
I would rather do the Sanden style conversion than reuse a York.
The expansion valve is against the firewall right where the hoses go into the evaporator case.
I would rather do the Sanden style conversion than reuse a York.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
This is the one you need from Rock Auto.
<table class="main" cellspacing="0"><tbody><tr name="pltr478" class="part1" id="table478part3">FOUR SEASONS Part # 38683 <td class="alternate1" rowspan="2"><table class="parts"><tbody><tr><td class="left" style="padding:0px; margin:0px;"><table class="layout" style="padding:0px; margin:0px;"><tbody><tr><td class="partlayout">
Factory Air (A/C installed at time of manufacture); w/ Right angle style valve</td></tr></tbody></table></td><td class="right" style="height: 40px;">
</td></tr></tbody></table></td><td class="center leftrightborder boldfont priceonly alternate1" style="padding-top: 10px;" id="node478part3price">$11.42</td></tr></tbody></table>
<table class="main" cellspacing="0"><tbody><tr name="pltr478" class="part1" id="table478part3">FOUR SEASONS Part # 38683 <td class="alternate1" rowspan="2"><table class="parts"><tbody><tr><td class="left" style="padding:0px; margin:0px;"><table class="layout" style="padding:0px; margin:0px;"><tbody><tr><td class="partlayout">
Factory Air (A/C installed at time of manufacture); w/ Right angle style valve</td></tr></tbody></table></td><td class="right" style="height: 40px;">
</td></tr></tbody></table></td><td class="center leftrightborder boldfont priceonly alternate1" style="padding-top: 10px;" id="node478part3price">$11.42</td></tr></tbody></table>
Thread Starter
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Senior User
Joined: Dec 2013
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This is the one you need from Rock Auto. <table class="main" cellspacing="0"><tbody><tr name="pltr478" class="part1" id="table478part3">FOUR SEASONS Part # 38683 <td class="alternate1" rowspan="2"><table class="parts"><tbody><tr><td class="left" style="padding:0px; margin:0px;"><table class="layout" style="padding:0px; margin:0px;"><tbody><tr><td class="partlayout"> Factory Air (A/C installed at time of manufacture); w/ Right angle style valve</td></tr></tbody></table></td><td class="right" style="height: 40px;"> </td></tr></tbody></table></td><td class="center leftrightborder boldfont priceonly alternate1" style="padding-top: 10px;" id="node478part3price">$11.42</td></tr></tbody></table>
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
The Sanden style compressor is modern rotary design. Light, compact, efficient and runs much smoother and quieter than the York, plus the cost of a new Sanden compressor with clutch is less than the cost of a rebuilt York minus clutch.
If you have all the brackets and pulleys from the factory installation you can get a conversion bracket that bolts the Sanden style compressor to the York bracket. The hose fittings on the Sanden are different than the York so you'll also need to either have new hoses custom made (that's what I did) or they make adapters that will allow you to reuse your old hoses.
Nostalgic Air makes a couple of different brackets. One bolts the compressor solidly to the mount and you use the original tensioner pulley to tighten the belts, the other allows you to pivot the compressor to tighten the belt.
Nostalgic AC - York Compressor Adapter Plate / Universal Mount - Misc Compressor Mounts - Mount Kits & Pulleys
Here are some pictures of my conversion, a '73 F100 with a 390.
If you have all the brackets and pulleys from the factory installation you can get a conversion bracket that bolts the Sanden style compressor to the York bracket. The hose fittings on the Sanden are different than the York so you'll also need to either have new hoses custom made (that's what I did) or they make adapters that will allow you to reuse your old hoses.
Nostalgic Air makes a couple of different brackets. One bolts the compressor solidly to the mount and you use the original tensioner pulley to tighten the belts, the other allows you to pivot the compressor to tighten the belt.
Nostalgic AC - York Compressor Adapter Plate / Universal Mount - Misc Compressor Mounts - Mount Kits & Pulleys
Here are some pictures of my conversion, a '73 F100 with a 390.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
I had a local A/C shop make the hoses.
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