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Leaking part help?

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Old Dec 3, 2018 | 01:24 PM
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Default Leaking part help?



Can someone please help to identify this part in the picture below on the passenger side engine compartment of my 87? I just picked up the car last week so still learning. The AC wasn’t blowing so I recharged it and in the process looked like there was bubbling/leaking at this hex screw. I didn’t think it was part of the AC system at first but if it is I guess I found my leak? If someone knows please advise!

im having trouble uploading the picture. Just straight up not working....

Last edited by BluesQQs; Dec 3, 2018 at 01:28 PM.
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Old Dec 3, 2018 | 01:39 PM
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That is your heater valve and actuator assy.
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Old Dec 3, 2018 | 01:45 PM
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He's right ^^^

It isn't part of the AC system.

There are threads on rebuilding that with parts from another valve.. You can buy a corvette replacement. You can bypass it. Or, you can replace it with a generic part if you do some careful trimming.
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Old Dec 3, 2018 | 01:57 PM
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Great - thank you both. Do you know exactly what it is that is leaking from it and how immediate I should attend to it?
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Old Dec 3, 2018 | 02:19 PM
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Corvette Central has two versions of this assembly. You'll have to determine which one you need:
https://www.corvettecentral.com/sear...ryId=&q=454584

I used a much cheaper alternative, a Four Seasons 74800. With two new, longer hoses, I was in business:



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Old Dec 3, 2018 | 02:49 PM
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Originally Posted by Hot Rod Roy

I used a much cheaper alternative, a Four Seasons 74800. With two new, longer hoses, I was in business:




^^^^ That was my solution also.. Got it from amazon for almost nothing.


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Old Dec 3, 2018 | 02:52 PM
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Originally Posted by BluesQQs
Great - thank you both. Do you know exactly what it is that is leaking from it and how immediate I should attend to it?
It's coolant and it really should be fixed within a reasonable time, because it if fails completely it will spray coolant everywhere and it will have to be fixed on the road or it will come back on a truck.

It's not a bad job, but, BE VERY CAREFUL REMOVING THE HOSES.. I would cut them and gently peel them from the firewall side.. Because if you yank or twist hard on them, you may find yourself replacing the heater core also. That is a much bigger job.

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Old Dec 3, 2018 | 03:08 PM
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Originally Posted by confab
. Because if you yank or twist hard on them, you may find yourself replacing the heater core also. That is a much bigger job.

A master of understatement
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Old Dec 3, 2018 | 03:37 PM
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Thank you all. For the four seasons one did you just use the guts and kept the original housing? Or did that one fit properly?
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Old Dec 3, 2018 | 03:48 PM
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I did like Roy said and extended the heater hoses.

Then again, I'm not a purist or going to any NCRS competitions.
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Old Dec 3, 2018 | 06:35 PM
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Originally Posted by BluesQQs
For the four seasons one, did you just use the guts and kept the original housing? Or did that one fit properly?
My original intent when I bought the Four Seasons valve was to pull the guts out of the valve and fix my original. That should be possible if you are a very patient surgeon. When I figured out how the new valve worked, I decided to use it as-is. The hose fittings are even the correct diameter!

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