71B Heater/defrost cable

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general
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71B Heater/defrost cable

Post by general » Thu Feb 07, 2013 9:16 pm

Can anyone show me the type of cable end or clip I need to connect the heater/defrost cable to the heater box.
See picture attached
Thanks
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heatercableclamp.jpg

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Re: 71B Heater/defrost cable

Post by 71_bronze_gtx » Fri Feb 08, 2013 8:09 am

I'm attaching a screen cap from a 1972 service manual. I expect 71 is the same, but cannot verify until I get home to check.

Circle W & Z -- one clip anchors the cable to the plenum, and another clip attaches it to the arm that moves the door -- either heat/defrost or hot/cool blend. Where to find CORRECT clips is another matter.

-Mark
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heater cables.jpg

general
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Re: 71B Heater/defrost cable

Post by general » Fri Feb 08, 2013 9:11 pm

Thanks for providing that picture but I think the 72 box is different than what I have. One thing I forgot to mention is that its a non a/c box.
If you look at the picture I posted there is a screw, so it is either somekind of a clip or the end of the cable is molded to accept a screw.

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Re: 71B Heater/defrost cable

Post by 71_bronze_gtx » Fri Feb 08, 2013 10:23 pm

Yes, the 72 is different. If you'd like, I can send a .pdf file of the 71 service manual section for heaters. Send me a private mail including a email address where I can send the PDF.

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Re: 71B Heater/defrost cable

Post by road chicken » Fri Feb 15, 2013 8:30 pm

The black tab of the cable is held to the metal tab with a sheet metal screw, cable going over the top, black tab facing down, between the metal bent tabs.
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Re: 71B Heater/defrost cable

Post by general » Sat Feb 16, 2013 10:01 pm

road chicken wrote:The black tab of the cable is held to the metal tab with a sheet metal screw, cable going over the top, black tab facing down, between the metal bent tabs.
That's what I ended up doing altough it looks weird. I find the cable end a little too high that it does not sit down on the lever too much. I'm afraid it will pop out. So I put a push nut on it to help with that.

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Re: 71B Heater/defrost cable

Post by road chicken » Sun Feb 17, 2013 12:57 am

general wrote:
road chicken wrote:The black tab of the cable is held to the metal tab with a sheet metal screw, cable going over the top, black tab facing down, between the metal bent tabs.
That's what I ended up doing altough it looks weird. I find the cable end a little too high that it does not sit down on the lever too much. I'm afraid it will pop out. So I put a push nut on it to help with that.

No that's right. If you look at the heights on the metal tabs they are different to make up the difference in the cab;e and the plastic end diameters.

The cable end does not go over the door arm. There is a spring steel clip that slides over the door arm and the cable goes through two slots in the clip. That is where the adjustment for that cable is made... by sliding the cable in those two slots so the selector will line up with OFF, HEAT and DEFROST.
4th generation B bodys- there is no substitute.
68 383, Street Demon 750, RPM top end,484/284/108 poo poo cam "-5 spd 4:10 SG, 4whl disk, Helwig Anti-Sway, Poly bushings,Firm Feel Box, HD Linkage, 1" t-bars, 7 leafs Springs

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Re: 71B Heater/defrost cable

Post by general » Sun Feb 17, 2013 10:16 am

road chicken wrote:
general wrote:
road chicken wrote:The black tab of the cable is held to the metal tab with a sheet metal screw, cable going over the top, black tab facing down, between the metal bent tabs.
That's what I ended up doing altough it looks weird. I find the cable end a little too high that it does not sit down on the lever too much. I'm afraid it will pop out. So I put a push nut on it to help with that.

No that's right. If you look at the heights on the metal tabs they are different to make up the difference in the cab;e and the plastic end diameters.

The cable end does not go over the door arm. There is a spring steel clip that slides over the door arm and the cable goes through two slots in the clip. That is where the adjustment for that cable is made... by sliding the cable in those two slots so the selector will line up with OFF, HEAT and DEFROST.
That is what I'm missing, the spring steel clip,I can see that would do the trick about the cable being too high. I also missed the height of those tabs, they are different. Now got to find one of those clips, thanks for the help. :D

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Re: 71B Heater/defrost cable

Post by JimT1971RR » Mon Feb 18, 2013 10:17 am

Was working on my 71 last night. Does the plastic covered part of the cable just lay into the clip, like in circle w from the diagram, or do I need to pinch it with pliers or something?

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Re: 71B Heater/defrost cable

Post by general » Mon Feb 18, 2013 11:14 am

I think the cable goes on top of the tabs not below them.

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Re: 71B Heater/defrost cable

Post by road chicken » Mon Feb 18, 2013 2:04 pm

I took some pictures of the clip and proper orientation of the cable to the tab. I'll post them later after I get home.
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68 383, Street Demon 750, RPM top end,484/284/108 poo poo cam "-5 spd 4:10 SG, 4whl disk, Helwig Anti-Sway, Poly bushings,Firm Feel Box, HD Linkage, 1" t-bars, 7 leafs Springs

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Re: 71B Heater/defrost cable

Post by road chicken » Mon Feb 18, 2013 6:37 pm

Image
Image

that should do it :)

Hmm seems the links aren't working now :mad:
4th generation B bodys- there is no substitute.
68 383, Street Demon 750, RPM top end,484/284/108 poo poo cam "-5 spd 4:10 SG, 4whl disk, Helwig Anti-Sway, Poly bushings,Firm Feel Box, HD Linkage, 1" t-bars, 7 leafs Springs

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Re: 71B Heater/defrost cable

Post by general » Tue Feb 19, 2013 8:57 pm

Hey Road chicken, those pictures are perfect. The links worked for me. Thanks again for your help that is exactly what I needed. :beer:

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Re: 71B Heater/defrost cable

Post by road chicken » Wed Feb 20, 2013 2:17 pm

Glad to help. :beer:
4th generation B bodys- there is no substitute.
68 383, Street Demon 750, RPM top end,484/284/108 poo poo cam "-5 spd 4:10 SG, 4whl disk, Helwig Anti-Sway, Poly bushings,Firm Feel Box, HD Linkage, 1" t-bars, 7 leafs Springs

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