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El Duderino
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Manual heat controls in an '83 SC?
Can someone tell me whether an '83 SC had one or two manual levers for heat control? I am thinking about changing from the auto controls to the lever style. Looks like the auto has a servo that only controls just the one lever. Is it as simple as adding the lever with the red handle and a different shroud over the e-brake? Or is it more complicated than that?
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There are those who call me... Tim '83 911 SC 3.0 coupe (NA) You can't buy happiness, but you can buy car parts which is kind of the same thing. |
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Registered
Join Date: Dec 1999
Location: Richmond, VA USA
Posts: 1,058
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If you have a single lever in your autoheat, then you should use a single lever for heat. That lever will control both heater boxes. But your lever is installed to rotate freely as the autoheat system moves it up and down. If you just remove the autoheat, the spring on the heater boxes will return the lever to the down position as soon as you let it go. The manual heat had a different center bolt and a different combination of washers, plus the addition of friction washers, which would hold the lever wherever you left it. I used PET and studied the heater control system and figured out what different parts I would need to do this conversion. You'll need to do this study for yourself so that you will be able to put it all together in the right order on the shaft that mounts the lever.
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Join Date: Nov 2005
Location: Moore, OKlahoma
Posts: 563
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my 83sc has 2 levers
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Certified Southern Dumbass! 83 911SC with 993 conversion, 98 Ford Expedition 4WD lifted beast, 98 Jeep Grand Cherokee, 01 Ford Taurus, 99 Nitro Bass boat, and a riding lawn mower ![]() |
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Auto Heat - 1 lever. Manual heat - 2 Levers. The cables were different. Even the heater flapper box was different. Like Brian noted. This is going to require abit of study and may require some NLA parts unless you can tweak the auto heat setup.
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83 SC Targa -- 3.2SS, GT2-108 Dougherty Cams, 9.5:1 JE Pistons, Supertec Studs, PMO ITB's, MS2 EFI, SSI's, Recurved Dizzy, MSD, Backdated Dansk Sport Stainless 2 in 1 out, Elephant Polybronze, Turbo Tie Rods, Bilstein HD's, Hollow 21-27 TBs, Optima Redtop 34R, Griffiths-ZIMS AC, Seine Shifter, Elephant Racing Oil Cooling. |
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It's very simple to convert to manual levers, just get a set from the classified, any set from like the 70's forward will work. Get some metal wire from the hardware store, that's all the heater cables are. You do not need new flapper boxes or anything for that matter, just the metal wire and the levers.
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2021 Model Y 2005 Cayenne Turbo 2012 Panamera 4S 1980 911 SC 1999 996 Cab |
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Join Date: Apr 2005
Location: outta here
Posts: 53,248
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Actually, you do need more than just the wire and the levers. Post #2 sums it up pretty well. A little studying of the parts diagram really helps here. It's probably easiest to just buy a complete, used handbrake assembly to get the parts.
JR |
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Yea, I meant get the levers and manual console.
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2021 Model Y 2005 Cayenne Turbo 2012 Panamera 4S 1980 911 SC 1999 996 Cab |
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El Duderino
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Thanks, fellas! I will study the PET and try to make a decision.
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There are those who call me... Tim '83 911 SC 3.0 coupe (NA) You can't buy happiness, but you can buy car parts which is kind of the same thing. |
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