Hi All,

I just posted a blog of my experience in converting the factory A/C in my '63 Series 62 Convertible to R134a.  Everything works great, but I would be more comfortable if I knew where the drain hose for the evaporator case was located so I could inspect it.  I'm getting a lot of condensate running out of the bottom of the right front fender, but I can't see the condensate drain from under the car.  Anyone have any photos or tips on finding it?  The shop manual and parts list publications don't show this detail.

Thanks and check out the blog post if you're planning a 134a conversion.  Hope it helps.

-Mike

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Michael I am attaching a photo of an evaporator marked to show where the drain tube is attached to the evaporator. The tube is reproduced and available if you are wanting to replace it.  I'm not sure if it is possible to replace the tube with the evaporator in the car or not though.

Gene

Thanks Gene!  That helps a lot!  I'm guessing that you can't see this tube at all from outside/underneath the car?  It must drain into a body cavity and eventually water finds its way out?

Michael

The drain tube is available from Old Air Products in Fort Worth Texas. Pho. 817 531-2665 for $6.50 plus shipping costs.  Photo from their web site is attached.

Gene

do keep in mind that the water still leaks through that short hose and then will come out at the bottom of the fender anyway. I tried tracking the water flow so that I could use a rubber hose exiting directly out of the car, but the passage winds like a maze through a couple layers of metal and you cant get a direct passage. I almost though of drilling a hole, but gave up and just kept working because that would have been time consuming. 

Maybe a better idea would have been to use bed-liner spray but again, I was just trying to get the job done. Its a fun one!

A very common rust spot on the bottom of the passenger fender ,is caused by the evaporator moisture discharge from under the hood on the passenger side of the car
Correcting that problem ,is avery good idea ,if it can be done
As you suggested ,coating the inner fender ,with a protective coating ,is another good choice ,and an especially good idea if the fender is off the car for any reason

Cadillac moved the location of the evaporator in the newer years,more to the center of the back of the engine bay
Jason
Is it possible to have a photo of the evaporator and its housing in the car ,to determine were the drain hole is located ,when the part is in the car

Thanks
My posts apply to my 64 ,not sure the 63 has the same issue

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