Evap core??
Thread Starter
Racer
Joined: Feb 2012
Posts: 319
Likes: 0
From: Daytona Beach Florida
Evap core??
Well went to pull some vacuum to charg ac.. And found a small crack on the evap core...tried to braze it with aluminuim rod.. But to tight against the case..
Here is my question.. How tough is it to replace the evap core?? Located one on rockauto...here is the link
http://www.rockauto.com/catalog/x,ca...,parttype,6768
Is this what I need? And what does it mean w/case??
Here is my question.. How tough is it to replace the evap core?? Located one on rockauto...here is the link
http://www.rockauto.com/catalog/x,ca...,parttype,6768
Is this what I need? And what does it mean w/case??
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
The evap core can be removed from the engine bay. A tedious job but not difficult when compared to R&R the heater core. It will be necessary to replace both the drier and expansion valve. I have no clue what w/case means.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
It's no fun to replace the evaporator. You may need to remove the exhaust manifold for clearance.
You might want to take a look at ebay. I purchased an evaporator from a well known Corvette parts retailer. I recall paying over $200 for it. When I got it the box had MADE IN CHINA stamped on it. It did not fit. I found another on ebay for $50. It arrived in the same box with the same part number. This one did fit and has worked fine. So basically the first one had well over a $150 markup. And they gave me a hard time about returning it.
You might want to take a look at ebay. I purchased an evaporator from a well known Corvette parts retailer. I recall paying over $200 for it. When I got it the box had MADE IN CHINA stamped on it. It did not fit. I found another on ebay for $50. It arrived in the same box with the same part number. This one did fit and has worked fine. So basically the first one had well over a $150 markup. And they gave me a hard time about returning it.
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
There's no need to remove the stock header, but then removing the head does make it easier. Just take off whatever makes it easy for you and have at it. Often, you'll have to take off one side and then the other, but it'll come apart without any engine work.
Factory core has a foam filter on the inlet side which the last time I looked was still available. I don't think it's necessary and when these things leak, the foam breaks apart and makes a gooey mess of the core (which you'll be tossing at that point anyway).
Whatever you do, reseal the case or you'll end up with most of your chill hitting the pavement or going in to the engine compartment and then you'll be posting about your blower not putting out enough air.
NAPA has stocking numbers for the Core and I know there are 2 out there which will work. One has the Low Pressure Switch fitting at a 45 degree angle - stock is at 90 so if that's important to you, make sure that's what you get.
The GM replacement Accumulator also has 2 schraders for the Low Pressure Hookup whereas it left the Factory with only one and that's difficult to find. NAPA had a match a couple of years back, but when I went to buy it, they couldn't produce one. If you use the GM replacement, you'll need to notch the bracket for the second fitting or it will sit up too high and hit the hood and you may not notice it until the hood cracks.
Factory core has a foam filter on the inlet side which the last time I looked was still available. I don't think it's necessary and when these things leak, the foam breaks apart and makes a gooey mess of the core (which you'll be tossing at that point anyway).
Whatever you do, reseal the case or you'll end up with most of your chill hitting the pavement or going in to the engine compartment and then you'll be posting about your blower not putting out enough air.
NAPA has stocking numbers for the Core and I know there are 2 out there which will work. One has the Low Pressure Switch fitting at a 45 degree angle - stock is at 90 so if that's important to you, make sure that's what you get.
The GM replacement Accumulator also has 2 schraders for the Low Pressure Hookup whereas it left the Factory with only one and that's difficult to find. NAPA had a match a couple of years back, but when I went to buy it, they couldn't produce one. If you use the GM replacement, you'll need to notch the bracket for the second fitting or it will sit up too high and hit the hood and you may not notice it until the hood cracks.
