Anyone else did the "Cold A/C" mod?
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From: Eastern Ky
Anyone else did the "Cold A/C" mod?
It is simply putting a ball/schrader type valve in the coolant hose to the Heater Core, and shutting the coolant flow off.
Thus reducing temperatures and allowing more cold air to be made/distributed without heatsoak.
Anyone else did this? Opinions?
Thus reducing temperatures and allowing more cold air to be made/distributed without heatsoak.
Anyone else did this? Opinions?
Elder User
Joined: Mar 2008
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From: Sandy Hook, CT
Hmm, sounds interesting, but isn't there a 'mixing valve' type thing on or near the heater plenum that basically does this? Not sure, but I know my 2 older Mustangs (both 1967) and my Cougar all have this type of set up from the factory. If our trucks don't have this, though it sounds like a pretty decent idea...
Roger
Roger
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From: Over the hump in Pahrump
I did mine over a year ago and it works just fine !!! I got the idea from my Peterbilt ... it came with shut off's at the block !!! On my F250 I made an "H" shaped by-pass with 3 "screw type" valves so coolant would recirculate when by-passing the heater core... yes it is a bit of over-kill 
At that time I replaced ALL heater hoses with blue silicone hose.. (truck drivers favorite) ... should last for a L O N G time 
Dave 
At that time I replaced ALL heater hoses with blue silicone hose.. (truck drivers favorite) ... should last for a L O N G time Dave
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From: Eastern Ky
Thanks Mongo!
I don't think the coolant not circulating to the heater core in hot weather is going to have any negative effects, will it?
At any rate, I'm 99% tempted to go on, and pick up a valve and toss it on...
Also...
Did anyone else's A/C-Heater Core box have the silver insulation?
Mine has a few shreds, and I'm wanting to re-cover it....To help eliminate heatsoak....From the engine bay...
My I6 LOVES to produce heat...Seriously, the fenders are hotter than all get out after a hour long run....
I don't think the coolant not circulating to the heater core in hot weather is going to have any negative effects, will it?
At any rate, I'm 99% tempted to go on, and pick up a valve and toss it on...
Also...
Did anyone else's A/C-Heater Core box have the silver insulation?
Mine has a few shreds, and I'm wanting to re-cover it....To help eliminate heatsoak....From the engine bay...
My I6 LOVES to produce heat...Seriously, the fenders are hotter than all get out after a hour long run....
Elder User
Joined: Mar 2011
Posts: 923
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From: North Central MA
I redid my foil after putting in headers a few weeks back.
looking for a link to the stuff its the 2k degree reflectance self-adhering type (mat not tape) . I only took the time to clean where it adhered. dont make for pretty pics
Edit: cant find a link but its off the shelf at CAP. 20 ish bucks 1 package does it all with scissors thought and time.
looking for a link to the stuff its the 2k degree reflectance self-adhering type (mat not tape) . I only took the time to clean where it adhered. dont make for pretty pics
Edit: cant find a link but its off the shelf at CAP. 20 ish bucks 1 package does it all with scissors thought and time.
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Elder User
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From: Over the hump in Pahrump
Give Home Depot/Lowes a try for both the tape (big $$$'s) and the foil bubble wrap stuff ... also wet suit type material works well too... Put some around you battery too .... the wet suit stuff not the foil bubble wrap stuff !!!
Dave
Dave
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From: Over the hump in Pahrump
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From: Over the hump in Pahrump
Side Winder
[QUOTE=SideWinder4.9l;12132740]Thanks Mongo!
I don't think the coolant not circulating to the heater core in hot weather is going to have any negative effects, will it?
I've done it on all my semi's for many years .... no problems Dave
I don't think the coolant not circulating to the heater core in hot weather is going to have any negative effects, will it?
I've done it on all my semi's for many years .... no problems
Dave
Last edited by oldmongo; Aug 4, 2012 at 07:01 PM. Reason: Duh !!!
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From: Cleveland, TN
X2.............
