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Old Jun 5, 2023 | 09:56 AM
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Default AC What the?

New member, replacing engine in 1976 and working through stock vs custom. Previous owner did a bunch of questionable mods. I have this “manifold” inline on the AC line and need to know how to replace or repair?

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Old Jun 5, 2023 | 10:41 AM
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Replacements for the entire main hose are available at many Corvette part vendors, about $200
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Old Jun 5, 2023 | 10:47 AM
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Originally Posted by kansas123
Replacements for the entire main hose are available at many Corvette part vendors, about $200
Any vendors you can recommend...I have done most of my shopping at JEGs and Summit, and have not delved into Corvette specific vendors.
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Old Jun 5, 2023 | 10:49 AM
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Originally Posted by kansas123
Replacements for the entire main hose are available at many Corvette part vendors, about $200
That hose and whatever it connects to probably is so filthy internally that you will destroy a new compressor.
Unless you know how to flush an A/C system you might save money in the long term by letting a reputable A/C shop repair the system. There is a shop near my home I have used that does quality work and backs their warranty. (normally I do ALL my repairs)
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Old Jun 5, 2023 | 11:41 AM
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Where do you live? In Tampa we have a few shops that can rebuild any hose. Most while you wait. Jerry
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Old Jun 5, 2023 | 01:15 PM
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Contact 4 Seasons, they make a good quality replacement manifold/hose assembly for the '78-'82 Corvette for about $80.
​​​​​​​I just bought one, good fit.
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Old Jun 10, 2023 | 08:41 AM
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Thank you for all you responses…since the new engine has a freshy new AC compressor, I decided to replace the whole system. Arrived yesterday and will be putting in, hopefully, this weekend. Trying to get as much done in the engine compartment before putting in the engine. New wiring should arrive before next weekend.
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Old Jun 20, 2023 | 10:04 AM
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Ok, I bought all the AC hose parts and AC replacements for the system…I am definitely not qualified to hook up the AC, fill, etc. But hard to take in to a qualified tech when the engine compartment is without an engine Can I install the new engine and start it up get it operational and keep the new compressor with its factory seal in place? What is the safest way to get the engine operational and not destroy the new compressor.
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Old Jun 20, 2023 | 10:37 AM
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Hi Jerry, I'm new to the Tamps Area, I have a 1978 that hasn't had the AC working in many years. It had a slow leak and since the car was rarely driven I didn't have it refilled or tested. At a recent car show I Mark's Air Inc. (Bowles RD Tampa) was recommended as a good AC shop. Have you heard of this shop, or is there another you would recommend for an estimate/repair? Thanks, Mike
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Old Jun 20, 2023 | 10:49 AM
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Originally Posted by C3 neverdonethis
Ok, I bought all the AC hose parts and AC replacements for the system…I am definitely not qualified to hook up the AC, fill, etc. But hard to take in to a qualified tech when the engine compartment is without an engine Can I install the new engine and start it up get it operational and keep the new compressor with its factory seal in place? What is the safest way to get the engine operational and not destroy the new compressor.
The hoses and some other bits (like the condenser) will be much easier to install with the engine out. No need to mount the compressor until you need to. It is on a separate fan belt, so you can leave it out, or leave it disconnected.

If you know what shop you'll use, ask for advice. They'll likely pull a vacumm to clean out the new system anyway, but may suggest an order of operations, especially if you are reusing any parts.
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Old Jun 20, 2023 | 11:05 AM
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Mike: I sent you a PM. Jerry
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