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Old 06-19-2010, 07:46 PM   #1
gchemist
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R134 condensor

Ready-Aire - Air Conditioning Condenser
Part Number: 636420



I bought a new condensor. Here are the pictures of it.


Yes, this condensor is a multiple path (cross) flow condensor designed for R134. Yes, the Orielly's computer lists it as a direct replacement. I guess manufacturers decided to make them for older trucks. Now, I just need time to discharge my current system to install it.
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Old 06-19-2010, 08:06 PM   #2
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Re: R134 condensor

How well does your air work right now? I've been thinking about doing the same thing with my Burb. It works well except the really hot days, it's just so-so. It could stand to blow out the dash a little faster too.
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Old 06-19-2010, 10:09 PM   #3
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Re: R134 condensor

Mine works great when the truck is moving. City driving and stop lights are bad. Install some foam pads between the radiator and condensor. Get as much air through the condensor as possible. You can even use padding over the top portion. I'm replacing mine since I run electric fans. My fans are not running all the time. The single tube R12 design can work if you run enough air through the condensor.

If anyone upgrades to R134, consider upgrading the condensor. $119.16 with tax at O'rielly's.
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Old 06-19-2010, 10:24 PM   #4
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Re: R134 condensor

Will that condensor help with non having cold air at idle. Mines nice and going down the road but when you stop it slowly gets warmer.
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Old 06-19-2010, 11:16 PM   #5
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Re: R134 condensor

Yeah... My air does the same thing.. cold during driving.. and cool at best during stop and go traffic, with 134a conversion, Really hot days the A/C hangs in there.. IMO.. i think thats the best its gonna get.. with these units
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Old 06-19-2010, 11:37 PM   #6
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Re: R134 condensor

What about putting electric fans on there that should pull air through the condensor at idle right?
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Old 06-19-2010, 11:43 PM   #7
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Re: R134 condensor

That is what a modern day car does. When the ac is turned on the fan comes on.
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Old 06-19-2010, 11:51 PM   #8
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Re: R134 condensor

That's what I'm saying so my can't it work on our trucks?
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Old 06-20-2010, 12:18 AM   #9
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Re: R134 condensor

Quote:
Originally Posted by CaliDude76 View Post
Yeah... My air does the same thing.. cold during driving.. and cool at best during stop and go traffic, with 134a conversion, Really hot days the A/C hangs in there.. IMO.. i think thats the best its gonna get.. with these units
Close up all the open areas around the condensor. If anyone is running a mechanical fan, you'll notice the difference at idle and stop and go traffic. Cooling will be better. A mechanical fan, above condensor, and sealed areas are the best you can do for a stock system. The only other best upgrade is a Sayden compressor.
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Old 06-20-2010, 12:27 AM   #10
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Re: R134 condensor

If it's not working well at idle, replace the fan clutch. If you have electric fans, they NEED to be on when the AC is on. Some fan controllers have an AC input wire so the fans automatically come on (it needs wired in, of course).
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Old 06-20-2010, 01:01 AM   #11
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Re: R134 condensor

I wonder if the 73-80 condensers will be available in the newer design? I am sure the newer style condensor will make an incredible difference in the vent temps.
Frank
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Old 06-20-2010, 03:02 AM   #12
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Re: R134 condensor

If you do get electric fan you will go on when your A/C is on so that should shove your problem with warm air at stop lights..
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Old 06-20-2010, 05:30 AM   #13
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Re: R134 condensor

Quote:
Originally Posted by USSkoval View Post
If it's not working well at idle, replace the fan clutch. If you have electric fans, they NEED to be on when the AC is on. Some fan controllers have an AC input wire so the fans automatically come on (it needs wired in, of course).
Even if the clutch is replaced, a stock R12 condensor has its limitations. R12 and R134 condensors are different. R12 has a single tube that runs back and forth. A R134 condensor has a parallel flow path. Freon travels in multiple paths to help transfer heat.
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Old 06-20-2010, 11:53 AM   #14
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Re: R134 condensor

Yes, I was just pointing out that if the AC is turned on, there needs to be good air flow while stopped. It is very important that the electric fan comes on with the AC on. Without it, not only will the AC not blow cold, but it will build up excessive pressure and shorten the life of the compressor.
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Old 06-20-2010, 11:20 PM   #15
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Re: R134 condensor

Fat hoe I was thinking the same thing reading through the thread I don't imagine it would be hard to install an electric fan and a switch under the dash. I'm going to have to remember this when I go after my ac replacement
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Old 06-21-2010, 11:10 AM   #16
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Re: R134 condensor

Awesome find gchemist!!! I've been wishing for a cross flow condenser for years.......
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Old 06-21-2010, 11:41 AM   #17
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Re: R134 condensor

Of course, this comes 4 days after I charge my A/C, go figure! :P
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Old 06-21-2010, 12:33 PM   #18
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Re: R134 condensor

$98.99 at Summit.

http://www.summitracing.com/parts/PLI-636420/

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Old 06-21-2010, 01:08 PM   #19
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Re: R134 condensor

Quote:
Originally Posted by f.monroe View Post
I wonder if the 73-80 condensers will be available in the newer design? I am sure the newer style condensor will make an incredible difference in the vent temps.
Frank
When I look up a condensor for a '76 C10 on the O'Reilly website it comes up with part number 636120. It says it is parallel flow. If I look up just the part number, it does not say if it is parallel flow or not.

Maybe this link will work...

http://www.oreillyauto.com/site/c/de...2669&ppt=C0355

This is what it says...

Ready-Aire - AC Condenser
Part Number: 636120
Line: TPR

* UPC: 40876361201
* Not eligible for free shipping

Warranty Info

Limited Lifetime Warranty

Brand Information

Proliance's Ready-Aire® A/C Condensers offer a full line program with over 450 models covering over 95% of the light duty vehicles on the road today.

* All aluminum construction assures long-life durability and offers the latest technology with the following construction types:
o Parallel flow
o 6mm expanded tube
o Serpentine
* Advanced CAD design for optimal configurations to produce precision products from design through final manufacturing.
* Mounting holes and brackets line up every time to allow drop-in installation.
* All condensers meet or exceed OE specifications for A/C performance and durability.

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Old 06-23-2010, 01:26 AM   #20
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Re: R134 condensor

It's 6mm. As far as I know they do not make a true parallel flow condenser for these trucks. Probably never will.
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Old 06-23-2010, 05:34 PM   #21
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Re: R134 condensor

I agree. The new condensor is a little improvement over the R12 condensor.
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Old 06-29-2010, 04:05 PM   #22
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Re: R134 condensor

Please post back with results.Looking into swapping out my condensor also.Thanks
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Old 06-29-2010, 07:12 PM   #23
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Re: R134 condensor

It may be a few more weeks before I have a chance to install it. Either way, the condensor is an improvement. I recommend the upgrade for a R134 conversion.
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Old 06-29-2010, 10:03 PM   #24
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Re: R134 condensor

I've had this type condenser in my truck over four years now. It's pretty much what you will get if you buy from any of the big part store. I've done all the tweaks you can think of, from sealing the gaps to the E fan etc. Every bit helps. It is better the the 3/8 tube condenser. The bad thing is the condenser in these trucks are small. If they were bigger it would really work good. You still should see an improvement if everything is done right. I still have the R4 which I hate. The only reason I didn't change to a Sanden & true parallel condenser is I want to keep the factory look. Except for the E fan of course.
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Old 06-30-2010, 10:17 AM   #25
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Re: R134 condensor

i have the stock condensor and evap in the truck. orielly orfice tube and accumulator, stock 5.3 compressor and after i put the fan shroud on the truck the vent temps are at 50* after 5 mintues of driiving. charged the system to 1.85ish lbs and the pressures were at 28-35low and 200-220 on the high. good enough in my book. I had it at 1.75lbs but the compressor would cycle at idle.. added the extra .1 and it doesnt cycle as much and the high side pressures only went up like 5psi..
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