Procedure to Replace A/C Evaporator - Team Camaro Tech
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post #1 of 12 (permalink) Old Jan 12th, 11, 09:36 AM Thread Starter
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Dave
 
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Procedure to Replace A/C Evaporator

I am in the process of restoring my factory A/C system and I would like to remove the evaporator. Can this be done by removing the side of the evaporator housing (suitcase) or do I need to do more disassembly? I have removed all the screws from the case and one side of the suitcase is free, but i can't seem to wrestle the cover out due to interference with the exhaust manifold. Do I need to free up the evaporator somehow? Any suggestions on how to do this is greatly appreciated!

Dave
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post #2 of 12 (permalink) Old Jan 15th, 11, 01:56 PM
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Re: Procedure to Replace A/C Evaporator

Do a search on this subject. You are going to have to take the right fender off. There isn't really any way out of it. I am in the same boat right now. I would like to get my original factory air system working for summer. I say this EVERY TIME summer comes rolling around. :{
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post #3 of 12 (permalink) Old Jan 15th, 11, 05:55 PM
Moderator .. Jim
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Re: Procedure to Replace A/C Evaporator

I replaced mine and didnt have to remove the fender at all. I removed the bolts for the whole box and you should be able to wiggle it out. Or maybe you have after market manifolds, or different engine mounts that moved the manifolds up tighter to the a/c box?


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post #4 of 12 (permalink) Old Jan 18th, 11, 01:31 PM Thread Starter
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Dave
 
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Re: Procedure to Replace A/C Evaporator

I cannot wiggle it out, but with the compressor out of the way, I should be able to remove the exhaust manifold pretty easy. It looks like that will give me just enough room to get it out. I am scared to take off the fender and mess up my shiny paint. I will let you know how it works. Thank you for your help!

Dave
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post #5 of 12 (permalink) Old Jan 19th, 11, 04:00 PM
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Alan
 
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Re: Procedure to Replace A/C Evaporator

Haven't some people just removed a couple of bolts and moved the fender out slightly and then shoved in a wood wedge?

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post #6 of 12 (permalink) Old Jan 19th, 11, 04:19 PM
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Re: Procedure to Replace A/C Evaporator

Quote:
Originally Posted by click View Post
I replaced mine and didnt have to remove the fender at all. I removed the bolts for the whole box and you should be able to wiggle it out. Or maybe you have after market manifolds, or different engine mounts that moved the manifolds up tighter to the a/c box?

I'm gonna have to look again. But as best I remember, there was NO WAY to get to the bolts around the blower fan under the fender.

I know, my service manual shows undoing some bolts at the bottom of the fender skirt, then holding it open with a block of 2 by 4.

I don't know, that always looks like paint & fender skirt damage to me. :{ Maybe not. :}
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post #7 of 12 (permalink) Old Jan 20th, 11, 07:01 AM
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Michael
 
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Re: Procedure to Replace A/C Evaporator

I've never been able to get the suitcase removed from the firewall without removing the fender or the passenger side exhaust manifold (excepting 6 bangers of course), but Jim the Moderator seems to have no trouble at all. Ask him for details.
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post #8 of 12 (permalink) Old Jan 20th, 11, 08:55 AM
Moderator .. Jim
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Re: Procedure to Replace A/C Evaporator

I recall more now... I only removed the one half of my box and it came out... I can access my fan and bolts around it from the hole in my inner fender that previous owner put there. Its pretty handy.


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That will be the beginning." Louis L'Amour

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post #9 of 12 (permalink) Old Jan 20th, 11, 04:48 PM
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Alan
 
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Re: Procedure to Replace A/C Evaporator

Jeeez, I didn't think putting stuff in impossible places came into being until the '90's!!

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post #10 of 12 (permalink) Old Jan 20th, 11, 06:00 PM Thread Starter
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Re: Procedure to Replace A/C Evaporator

Just to clarify, I am not looking to remove the suitcase, only get the evaporator out of it. I have all of the screws removed that hold the two halves together, and I can open it up but not enough to wiggle the evaporator out. The half of the case closest to the engine catches on the exhaust manifold, so I cannot remove it from the bottom or top. It looks like removing the manifold will give me enough clearance to either get the side cover all the way out, or get the two halves separated far enough to extract the evaporator. My plan is to attempt this weekend, but I was looking to see if anyone could confirm or deny that this would work before I go through all the effort. Thanks to everyone who has commented so far. I love this site!

Dave
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post #11 of 12 (permalink) Old Jan 21st, 11, 10:26 AM
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Michael
 
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Re: Procedure to Replace A/C Evaporator

In addition to the passenger side exhaust manifold, lets hope you don't have to remove the passenger side head.

Like I wrote, I've always had to remove the passenger fender to access the suitcase (little "Jim" cheater blower motor holes excepted).
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post #12 of 12 (permalink) Old Jan 25th, 11, 01:31 PM Thread Starter
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Dave
 
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Re: Procedure to Replace A/C Evaporator

Update! Removing the manifold got me enough clearance to extract the evaporator. Still a tough fight, but persistence paid off. I have replaced all the hoses, the evaporator, the expansion valve, the dryer and the condenser. Basically saved the POA and the compressor. I charged it and it is blowing a lovely 35 degrees! Thanks to everyone who helped!

Dave
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