Xxyyzz Posted July 30, 2011 Share Posted July 30, 2011 Are there any walk thrus on removing the heater core? Ive never done this on any car and the PO did a coolant rerout a long time ago b/c the heatercore was leaking. Any tips or tricks before i do the install? Thanks, -Mark Quote Link to comment Share on other sites More sharing options...
Mo's70MCs Posted July 30, 2011 Share Posted July 30, 2011 Mark, Bruce (stangeba) has a great step-by-step tutorial..do a search or perhaps, Bruce will chime-in.. Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted July 31, 2011 Author Share Posted July 31, 2011 Hopefully hell point me in the right direction. I tries searching to no avail. I'm on my phone now, buy after I will search his posts. Thx. Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted July 31, 2011 Author Share Posted July 31, 2011 ok, so i wasnt just a lazy "no searcher" ;-) His walk thru is on: https://picasaweb.google.com/stangeba/HeaterCoreReplacement?authuser=0&feat=directlink# NOT on this site... but I followed some of his posts and found it... thanks for letting me know that he had this rod! -Mar Quote Link to comment Share on other sites More sharing options...
Mo's70MCs Posted July 31, 2011 Share Posted July 31, 2011 That's it you got it. I went looking for it and found it as well, nice to use the search option, every now and then. Good luck on your venture... Quote Link to comment Share on other sites More sharing options...
Blake350 Posted July 31, 2011 Share Posted July 31, 2011 There are a couple of good threads in the engine tech forum that might be helpful-I just did the core,AC delete,and inner fenders last winter. The core like many other jobs takes care and patience(unless you do them every day)but it is not THAT bad. Remove the dash PAD-it takes just seconds and makes peering in and dealing with the air ducts so much easier. There is one bolt that holds the core casing from the INSIDE-remove all the bolts off the studs on the firewall side and one can go nuts wondering why the darn thing still wont break loose. Carefully lower the case onto the floor as vaccuum lines and a bowden cable are attached. After 5 years,it is great to have heat again for those beautiful autumn and early winter drives!! Keep us posted-good luck!! Brian Quote Link to comment Share on other sites More sharing options...
stangeba Posted August 1, 2011 Share Posted August 1, 2011 Chime..... Glad it was found. Bruce Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 21, 2012 Author Share Posted January 21, 2012 Hey bruce, if you want to add this to your phot album feel free: The box on my 72 only had 4 studes. I'm unsure if it's stock or not, but maybe this could help someone in the future. I spent a while looking for that 5th stud! -Mark PS: wouldnt have had the guts without your pics, thanks! Quote Link to comment Share on other sites More sharing options...
stangeba Posted January 21, 2012 Share Posted January 21, 2012 You have A/C, I don't that may be why. Thanks, Bruce Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 21, 2012 Author Share Posted January 21, 2012 ahhh maybe. Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 22, 2012 Author Share Posted January 22, 2012 so my heater core was just sitting in the box, it didnt have any clips to keep it in. anyone have recomendations for getting it to stay upright? -Mark Quote Link to comment Share on other sites More sharing options...
Aaron Posted January 22, 2012 Share Posted January 22, 2012 My heater core took a dump all over my passanger side floor the day I was to bring it back home. I had to cut the lines and do a loop till I get around to changing it. Thanks for posting all the pics and tips on how to change it out! Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 23, 2012 Author Share Posted January 23, 2012 so i got everything reinstalled but now the fan wont even turn on... what could i have broken/forgotten to reconnect? -Mark Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 24, 2012 Author Share Posted January 24, 2012 Anyone ever had a problem with their fan that they were able to fix? That might point me in the right direction... Quote Link to comment Share on other sites More sharing options...
stangeba Posted January 24, 2012 Share Posted January 24, 2012 I assume it worked fine prior to removing the heater core. As with any electrical problem in a vehicle, I start at one end and work to the other like on a map. You must have a 12 Volt test light, check for power at the blower mtr, work back or start at the fuse, and work to the mtr. You have factory A/C, correct? I believe there is a relay on the outside A/C box area. Check for power there. You may also have a bad ground at the blower mtr itself. There is a blower mtr resister block inside (on my non A/C 71) that may have come unplugged, check that. Lot's of things to look for after a major repair but leaving something unplugged or unhooked is very likely. Good luck Bruce Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 24, 2012 Author Share Posted January 24, 2012 thanks bruce Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted January 30, 2012 Author Share Posted January 30, 2012 so i may be an idiot, but i was just thinking i havent used the fan since i pulled the a/c.... is there power running through the a/c unit that i need to reroute? Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted February 1, 2012 Author Share Posted February 1, 2012 i dont get a lot of replys on this. is there a better subforum? Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted February 4, 2012 Author Share Posted February 4, 2012 bueller??? any a/c guys out there? Quote Link to comment Share on other sites More sharing options...
geartech Posted February 4, 2012 Share Posted February 4, 2012 So the blower fan doesn't work after you took the inside unit out to replace the heater core? The fan doesn't work at all? A couple thoughts - the relay on the outside is the high blower relay, usually the issue if only Hi speed doesnt work. If it works on Hi and nothing else, look at the blower resistor, which I don't remember if its on the outside or this inside with a/c, If I remember right, its on the outside(in engine compartment). Power runs through the resistor for speeds other than Hi. If it doesn't work at all, check for power on the orange wire at the hi blower relay on the A/C unit out in the engine compartment. If no power there with a test light, there is sometimes an inline fuse in that wire. Let us know what you find and I can scan some pictures/wiring diagram too if that would help. Quote Link to comment Share on other sites More sharing options...
71monteme Posted February 4, 2012 Share Posted February 4, 2012 Mark. just a thought, did you check the plug at the control, it might have come loose while removing the heater core. thanh Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted February 4, 2012 Author Share Posted February 4, 2012 there are so many plugs back there what does it look like? Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted February 4, 2012 Author Share Posted February 4, 2012 orange wire.... thanks miike! Quote Link to comment Share on other sites More sharing options...
VE3HZZ Posted February 6, 2012 Share Posted February 6, 2012 Here is a few pics of the area and the resistor pack on mine (AC maybe different) that should give you some idea as it or the plug for it could be what is loose. Hope these help at all. Scott Quote Link to comment Share on other sites More sharing options...
Xxyyzz Posted February 6, 2012 Author Share Posted February 6, 2012 pictures help a TON! thanks! Quote Link to comment Share on other sites More sharing options...
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