*Heater Core Leak - HELP!*
Thread Starter
Drifting
Joined: Jul 2005
Posts: 1,591
Likes: 0
From: Oakville Ontario
*Heater Core Leak - HELP!*
How do I bypass the heater core?
Can I coneect the hoses together with a coupler that's 5/8 on one end and 3/4 on the other?
OR
Can I just attach hot water shut off valves to both hoses??
OR
Can I just eliminate the hoses and plug the intake manifold and water pump outlets?
TIA
yes I used the search funtion...
Can I coneect the hoses together with a coupler that's 5/8 on one end and 3/4 on the other?
OR
Can I just attach hot water shut off valves to both hoses??
OR
Can I just eliminate the hoses and plug the intake manifold and water pump outlets?
TIA
yes I used the search funtion...
Drifting
Joined: Mar 2004
Posts: 1,873
Likes: 1
From: Savannah Ga
I think all of them will do it. Mine was bypassed when I bought it,the reason is that in south fla they don't need a heater. My car came from Tampa/clear water.Sometimes in Savannah it will get cold enough to want some heat. Thats only about 5 or 6 days during our brief winter. I did redo it so I have heat. I just knew the po did it because of a bad heater core, but it was not the case. Somebody will chime in and tell you what the easest of them do to.
Last edited by copter; Jul 21, 2007 at 02:48 PM.
Intermediate
Joined: May 2006
Posts: 38
Likes: 0
From: California
I installed a Pipe to An fitting on the water pump and manifold and then installed the caps for the AN. If i remember correctly the manifold is a 3/8" pipe and the water pump is a 1/2" pipe. So I used a 3/8" pipe to 6 AN on the manifold and a 1/2" pipe to 6 AN on the water pump. The fittings and caps are cheap. It is a quick fix until you have the time to tear out that old core. When I did replace my core I cut off the tube ends and brazed on some 5/8" to 1/2" and 3/4" to 1/2" pipe copper adapters. The I installed the AN fittings into the copper adapters and ran braided hose for my heater lines.
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
In a C2 (non-A/C) there is a constant flow of coolant through the heater core. With a coupe like mine the interior can get very hot. I installed a ball valve to cut the flow or with a flick of the handle, get heat when needed.
Safety Car
Joined: Mar 2005
Posts: 4,255
Likes: 82
From: Brampton Ont.
This fitting can most likely be purchased at Home Depot or Rona.
If interested, I will be doing Romeo's heater core in about a month, if you'd like you can drop by and do yours at the same time. May get a better deal at a recore, which in my opinion is the best repair.
If interested, I will be doing Romeo's heater core in about a month, if you'd like you can drop by and do yours at the same time. May get a better deal at a recore, which in my opinion is the best repair.
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Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Damn that sucks!! I replaced mine when I pulled the motor only I did not have to deal with the AC stuff on mine. Keep us posted on what you wind up doing.
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Eddie
Drifting
Joined: Jul 2005
Posts: 1,562
Likes: 2
From: Spring Texas
You realize of course that when you sell your car that the next owner is going to want heat. He will undo your "fix", have the heater core leak on the carpet, and come screaming to the forum about what Bubba did. 
Intermediate
Joined: Apr 2007
Posts: 35
Likes: 0
From: Stockton CA
Too Much Engine Heat
I've been reading all the answers to your problem, and would ask the same guys that if I tie off the heater hoses, and use the thumb control at the "vent" position, will I then get cold air coming in from the vents? right now when I do that, all I'm getting inside is hot air, and where I live, I don't need a heater. I also don't know how to check the vacuum pot at the right side kick panel to see if it's working right or not. I don't have any vacuum leaks, so I'd sure like to see some responses at your conveniences!!!