Where does heater core leak from?
Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,783
Likes: 2
From: Engineers do it better.
Where does heater core leak from?
I thought once the heater core went, it would leak inside the vehicle near the passenger feet. I can see mine leaking under the hood, on the fire wall. Is this defective core or just the putty that holds the cover? I have the motor apart right now, so this might be the best time to fix this.
Le Mans Master
Joined: Jan 2006
Posts: 8,319
Likes: 7
From: Wilmington DE, Drive it like you stole it, 68 327 4 speed coupe
Originally Posted by desi
I thought once the heater core went, it would leak inside the vehicle near the passenger feet. I can see mine leaking under the hood, on the fire wall. Is this defective core or just the putty that holds the cover? I have the motor apart right now, so this might be the best time to fix this.
Most of the time they leak from where the inlet / outlet tubes mate to the core itself. from here it can drip and go whever the fuild will travel
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
I have been EXTREMELY lucky, in that both of the cores that went bad for me ('77 & '72 A/C cars) leaked primarily to the outside.
Fluid will find it's way where ever the path of least resistance exists....
Eddie
Fluid will find it's way where ever the path of least resistance exists....
Eddie
Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,783
Likes: 2
From: Engineers do it better.
I took the core out tonight. Not a hard job but time consuming. The manual said to take the dash and radio out. I just had to wiggle the core out.
Here's what I found inside
WTF is that? Is that a nest of some sort? There were bird seeds in there
Also, what sealer am I supposed to use? Is "GOOP" the right one? or just black silicone is good enough?
Here's what I found inside
WTF is that? Is that a nest of some sort? There were bird seeds in there
Also, what sealer am I supposed to use? Is "GOOP" the right one? or just black silicone is good enough?
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Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,783
Likes: 2
From: Engineers do it better.
How do they get in there though? The unit is completely sealed, isn't it? Unless I have one living inside the Vette...
Shouldn't there be mice droppings there too?
Shouldn't there be mice droppings there too?
Racer
Joined: Feb 2006
Posts: 428
Likes: 1
From: West Des Moines Iowa
Mice can find their way into almost anything, I MEAN ANYTHING!! REALLY. The best weapon of choice is the "boxed" Decon (the little green pellets that are in a box shaped like a slice of cheese). This works fabulous, although their is a chance the dead mouse might be found in your blower again (takes a little while for decon to kill that pesky rodent). Mouse traps in your case would work better initially (USE VERY SHARP CHEDDAR CHEESE), then go to the boxed decon for future protection. I have two cats and they work wonders if you can keep them outside like I can (live on 3 acres). Cats are better than any trap as long as they are OUTDOOR cats only. Indoor ones are TOOO domesticated and lazy. Good luck!! 
Gonzo (the mouse hunter)
Gonzo (the mouse hunter)
Last edited by gonzo14; Apr 26, 2006 at 11:07 AM.
Safety Car
Joined: Aug 2000
Posts: 3,943
Likes: 44
From: Florham Park NJ Port Credit Ontario
Amir, I used 3M window weld to bond the heater box back to the firewall. I heard of people using Butyl tape but I think the under hood temps and heat from the heater core wouldnt be good for it.
