Original evaporator ... replace or not? ... - Chevelle Tech
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post #1 of 8 (permalink) Old Aug 4th, 05, 12:58 PM Thread Starter
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Brian
 
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Original evaporator ... replace or not? ...

I'm replacing the compressor, TXV, drier, and hoses on my 70' Elky.... plus considering the evaporator, just because, ... it's 3 1/2 decades old. Anyone still running an original coil? Are these prone to leak, with age? What supplier carries good quality evaporators? Any to avoid? Thanks
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post #2 of 8 (permalink) Old Feb 5th, 17, 11:53 PM
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Re: Original evaporator ... replace or not? ...

Quote:
Originally Posted by brimac View Post
I'm replacing the compressor, TXV, drier, and hoses on my 70' Elky.... plus considering the evaporator, just because, ... it's 3 1/2 decades old. Anyone still running an original coil? Are these prone to leak, with age? What supplier carries good quality evaporators? Any to avoid? Thanks
Damn, I sure could have used an answer to this question also. It would save some of us time and money to not have to replace a part just because it's old.

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post #3 of 8 (permalink) Old Feb 6th, 17, 1:18 AM
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Re: Original evaporator ... replace or not? ...


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post #4 of 8 (permalink) Old Feb 6th, 17, 2:44 AM
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Re: Original evaporator ... replace or not? ...

Quote:
Originally Posted by davewho1 View Post
DUH ... Dumb ...

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post #5 of 8 (permalink) Old Feb 6th, 17, 3:08 AM
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Re: Original evaporator ... replace or not? ...

Ive restored many of these ac units. When someone sends me their parts, I flush and pressure check the evaporator first. You want to pressure check it with nitrogen. Are you staying with r12 or going with 134a? If going to 134a you would want to recalibrate the poa valve as well. And a parallel flow condenser is also highly advised.
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post #6 of 8 (permalink) Old Feb 6th, 17, 3:10 AM
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Re: Original evaporator ... replace or not? ...

LOL, I just now seen the date .
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post #7 of 8 (permalink) Old Feb 6th, 17, 5:38 AM
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Re: Original evaporator ... replace or not? ...

At the least you need to get the evaporator out of the car for a good cleaning. Over time they get clogged with dirt, leaves, etc. Also with it out you can do a pressure check with air by using a rubber cap and hose clamp on one end then a compressed air nozzle in in the other end sealed as best you can with scrap rubber or whatever. Put the evap under water, put about 30psi to it and watch for bubbles in the water. My 48 yr old evap is still good.

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post #8 of 8 (permalink) Old Feb 6th, 17, 3:09 PM
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Re: Original evaporator ... replace or not? ...

It's too bad it took 12 years to get positive answers to the OP's original question. I guess I could have started a new thread, but I didn't think it was necessary with this question already being asked.

Thank you to the two who responded in a positive manner on this subject, it was very helpful.

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