A/C Checkout-storage
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More Turbo
Joined: Oct 2001
Posts: 713
Likes: 1
From: Augusta.GA
A/C Checkout-storage
I know this is probably a tall order, but here is my two-part issue:
I'm working on a 1979 Ford F-250 with a 351M. I'm taking the engine out soon, been removing all the sheet metal and accessories. I want to know if there's something I need to do to store the a/c until I put the new engine back in. Right now everythings is hanging loose.
Also, since I'm told the A/C worked before the truck was parked for a few years. Lines had some pressure in them when disconnecting them. Are there some things I can do before reassembly to check out everything? Is there a kit to replace o-rings and what else?
thanks
I'm working on a 1979 Ford F-250 with a 351M. I'm taking the engine out soon, been removing all the sheet metal and accessories. I want to know if there's something I need to do to store the a/c until I put the new engine back in. Right now everythings is hanging loose.
Also, since I'm told the A/C worked before the truck was parked for a few years. Lines had some pressure in them when disconnecting them. Are there some things I can do before reassembly to check out everything? Is there a kit to replace o-rings and what else?
thanks
Senior User
Joined: Feb 2001
Posts: 135
Likes: 0
From: Morgan Hill, CA
A/C Checkout-storage
I would cap or tape over all the open ports as best you can, and throw away the dryer- put on a new one when the system is re-assembled. The new dryer should be open to the air for the least time that you can, so it doesn't absorb too much moisture from the air.
mike
mike
Tuned
Joined: Jun 2003
Posts: 307
Likes: 1
From: South Florida
A/C Checkout-storage
As lugnut said, tape over all the parts so no moisture can get in any of the componants. When your ready to reinstall the system, flush all the components well, separately, and rinse with whatever oil you will be using. Replace all o rings as well. With the system empty fill with the required amount of proper oil and add some dye for future use. I assume you will be converting to 134a, so take the opportunity to consider upgrading your condenser too. You should end up with a well working system.
Tuned
Joined: Jun 2003
Posts: 307
Likes: 1
From: South Florida
A/C Checkout-storage
The biggest problem with switching to 134a is that the old methods of condensing are simply not enough, hence a lot of complaints of not cool enough. 134a needs a lot more condenser efficiency to work right. The compressor must be compatable with pag or ester oils, the drier must be for 134a, the hoses should prefferrably be barrier type (but I wouldn't worry much about them till they leak), the evaporator doesn't matter much. If you will notice, condensers have gone from single row 3/8 tubes to parallel flow 6mm tubes on fords, to flat tube parallel flow condensers by many manufacturers, to also adding separate a/c condenser fans on vehicles like bmw and mercedes. Each step makes 134a work better and better. We have three vehicles that use 134a and consistantly cool at 45 deg vent temp when the ambient is 95 deg. As good or better than r12. Upgrading to an efficient condenser will also allow you to run lower freon pressures and add life to the other components.
