1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Coolant leak inside cabin (pic inside)

Thread Tools
 
Search this Thread
 
Old Nov 23, 2011 | 10:39 PM
  #1  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
Coolant leak inside cabin (pic inside)

Can anyone tell me if this is leaking from the heater core?

Its right next to the driver side foot well.

Coolant reservoir drops a little everytime I check it.

Steamy windows.

So far I bypassed the core for a temporary fix until i confirm.





Reply
Old Nov 24, 2011 | 06:58 AM
  #2  
rwatson5651's Avatar
79 w 13B4port
Tenured Member: 20 Years
Liked
iTrader: (5)
 
Joined: Jan 2005
Posts: 1,912
Likes: 62
From: Alabama
Unfortunately that has to be the heater core. I recently had to do this repair in my SA. Dash removal time and yea, its a bitch. No help from the fsm either.
One reccomendation is to remove the whole thing as a unit without taking the seperate pieces apart.
Reply
Old Nov 24, 2011 | 10:46 AM
  #3  
Sgt Fox's Avatar
Stigulus Moderatorai
Tenured Member: 20 Years
Liked
iTrader: (3)
 
Joined: Feb 2004
Posts: 2,109
Likes: 32
From: Canada
Agreed, has to be the heater core. Good luck!
Reply
Old Nov 24, 2011 | 11:07 AM
  #4  
Boriquaguerrero's Avatar
Retired First Sergeant
Veteran: Army
Tenured Member: 15 Years
Liked
Loved
iTrader: (18)
 
Joined: Jul 2007
Posts: 1,087
Likes: 69
From: Fort Stewart, GA
you could bypass the heater core thats what i did on mine when it was leaking i just just done removing all A/c and heater crap without removing the dash board but it takes time and patient
Reply
Old Nov 25, 2011 | 12:25 AM
  #5  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
This happend to me. I bought a new heater core. I also searched a bunch on here and red about the heater control valve(which is mounted on the driverside of the heater box). When I took the heater box out i found signs of coolant leakage at the valve. I replaced it also. Just a heads up!
Reply
Old Nov 25, 2011 | 12:34 AM
  #6  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
By the looks of your pics it's probably the valve. You'll see when you get the plastic cover off. As for taking the dash out, it's not too bad. Three 10mm bolts along windshield, I think there's two on each side by the door jams which you see when you remove the panels, unbolt the two bolts that mount the steering column to the dash, I'm pretty sure you have to drop the fuse panel down off the bottom of the dash which is two screws in between the two rows of fuses. Then unplug your cluster, speedo cable is the fun part! Once you get the center paneling off I belive there's a few bolts holding the dash in there too. Might as well take the seats out for more room good luck!
Reply
Old Nov 25, 2011 | 10:41 AM
  #7  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
Thanks for all replies.

Frenchie - it is coming from the driver side. Thanks a lot for that tip. I shall order both parts!
Reply
Old Nov 25, 2011 | 11:18 AM
  #8  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
Yeah usually if it's the heater core it leaks on the passenger side
Reply
Old Nov 25, 2011 | 12:00 PM
  #9  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
Can you point out to me where I can purchase a new control valve one.
Reply
Old Nov 25, 2011 | 03:40 PM
  #10  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
Black dragon auto. I lucked out. I have a bunch of parts cars
Reply
Old Nov 25, 2011 | 03:44 PM
  #11  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
Go to the website and order a free catalog. Lotsa cool stuff there
Reply
Old Nov 25, 2011 | 08:24 PM
  #12  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
I'll take a look at the cars I got. Maybe I can find one
Reply
Old Nov 25, 2011 | 09:54 PM
  #13  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
Thanks a lot. Wouldn't purchasing the part new be more safe?
Reply
Old Nov 25, 2011 | 10:37 PM
  #14  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
Of course it would be.
Reply
Old Nov 26, 2011 | 11:05 AM
  #15  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
Id appreciate it if you had one laying around in one of your parts cars and snapped a pic of it so I could get a idea of what im trying to get (:
Reply
Old Nov 26, 2011 | 11:36 AM
  #16  
rwatson5651's Avatar
79 w 13B4port
Tenured Member: 20 Years
Liked
iTrader: (5)
 
Joined: Jan 2005
Posts: 1,912
Likes: 62
From: Alabama
Coolant leak inside cabin (pic inside)-0112.jpg

# 4 above in heater components.
I apologize for the poor quality of the image but its the best I can do at the moment, maybe it will help.
Reply
Old Nov 26, 2011 | 12:00 PM
  #17  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
wow R watson... thanks a lot man! but $100! jeez.

That is the exact part that is leaking from the looks of it.
Reply
Old Nov 26, 2011 | 12:15 PM
  #18  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
I will still have to take off the dash in order to replace this part huh...?

Damnit...its the winter and it sucks to have no heat!
Reply
Old Nov 26, 2011 | 02:39 PM
  #19  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
I'll give you a used one. You just pay for shipping
Reply
Old Nov 26, 2011 | 02:41 PM
  #20  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
I red on here that you CAN change the valve without taking the box out, but the hoses that go to it would probably be a pain.
Reply
Old Nov 26, 2011 | 02:55 PM
  #21  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
And by the looks of this one in front of me, there's a pipe that goes behind the box on the firewall side. I'm gonna pull this box out and I'll see if I can get a pic for you. Not too sure how to upload a pic. I'll have to talk to John Smack
Reply
Old Nov 26, 2011 | 03:25 PM
  #22  
Ex-Eg-Driver's Avatar
Thread Starter
RX-7 DISCIPLE
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2007
Posts: 1,039
Likes: 0
From: NorCal,California
I'd be willing to purchase that part from you frenchie! And also I use the website WWW.imageshack.us to post pics.

Go to the site. Upload the pic from the location that you saved it. And when its done uploading it should provide a link for the pic. Insert link in a post.
Reply
Old Nov 26, 2011 | 04:14 PM
  #23  
frenchie's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2008
Posts: 79
Likes: 0
From: Campbell River, BC
What year is your car? I could send you the whole heater box
Reply
Old Nov 26, 2011 | 04:25 PM
  #24  
john smack's Avatar
Rotary Enthusiast
Tenured Member 05 Years
iTrader: (12)
 
Joined: Oct 2007
Posts: 871
Likes: 0
From: Fort St John B.C. Canada
Here is a pic of the valve
Reply
Old Nov 26, 2011 | 05:12 PM
  #25  
rwatson5651's Avatar
79 w 13B4port
Tenured Member: 20 Years
Liked
iTrader: (5)
 
Joined: Jan 2005
Posts: 1,912
Likes: 62
From: Alabama
The clamp that goes on the end of the longer pipe is behind the heater box in between the box and the fire wall, I don't think you can get to it without removing the box and you just about have to remove the dash to remove the box. It can be done but it's less trouble to go ahead and remove the dash.
Reply



All times are GMT -5. The time now is 01:29 PM.