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Shade Tree Mechanic
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Good Saturday morning all!
My 41 Special Deluxe has the heater/motor under the seat on passenger side. The P/O never hooked the motor up after rebuilding the car and told me he only drove the car in the summer.
Well, I want to drive it in the winter on good days so I want heat!
Today after mowing I decided to remove the seat and the motor and hook it up and see if it worked.
Well it didn't so I took the motor apart to check things inside and it looks pretty good inside and the brushes are in good shape.
I cleaned things up with some fine emery cloth, lubed the shaft (top and bottom), and put it back together and it still don't work so I am looking for a replacement motor, 12V.
Hoping someone has replaced theirs and can tell me which one they got. I know both the Filling Station and Chevs of the 40's has motors, but want to ensure I get the right one.
Also, I see there is a hole next to the motor in the floor pan, so I assume the motor wires run out and under the floor and up to the firewall.
Hoping someone can tell me how they wired their motor & control switch up.
Thanks a lot!!
Last edited by jughead; 08/31/13 01:24 PM.
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Backyard Mechanic
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Backyard Mechanic
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did u have a good ground on the motor ? frank
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Shade Tree Mechanic
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Hey Frank, how are you?
Yeah, I believe I was grounding it ok, but never hurts to check it again. I can always have the motor rebuilt at a local rebuilder and that may be the route I take. Just wondering how it wires up.
Since the motor has 2 short wires with connectors, and has to run out the floor pan and up to the front, I am wondering what the motor hooks to under the seat, prior to running outside.
Thanks
Last edited by jughead; 08/31/13 04:19 PM.
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Shade Tree Mechanic
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So no one on this forum has ever replaced or wired up an under seat heater motor?
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Joined: Dec 2001
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Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
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You probably scared off any help with the mention of 12-volt.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Shade Tree Mechanic
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That is funny, but at this point, I would just like to know how the original 6V motor wires up to both the power and control switch.
Got the motor a good ground and it works. A little noisy, but works.
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ChatMaster - 25,000
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The wire from the motor went to the switch. A hot wire ran from the ign. switch to the heater switch. It was wired so the heater motor would not work when the key was off. The motor was grounded to the car/heater case.
Gene Schneider
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Shade Tree Mechanic
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Thank you Chevgene.
So here's what I am still a little fuzzy in. The wires come out near the shaft, so I assume that's why the GM ran them though the hole in the floor pan, so they wouldn't interfere with the fan blades, so they must run under the floor pan, up the firewall, and inside the car over on the drivers side.
Still fuzzy on one more thing. Since the wires coming out of the motor are only 2 or 3" long and have connectors on them, what did they connect to, before making their run to the headlight switch?
Last edited by jughead; 09/01/13 09:35 PM.
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Chevs of the'40's sells a 1940-1948 under seat heater installation instruction sheet.
Gene Schneider
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You got that mile of hose hooked up yet...? Hope you "core" is okay...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Hope this can be of some help,do you have a new harness?Yes it routes through the firewall to ignition and heater switch ![[Linked Image from i563.photobucket.com]](http://i563.photobucket.com/albums/ss79/chefchevy/1948%20Harrison%20Underseat%20Heater/P1000536.jpg) [ ![[Linked Image from i563.photobucket.com]](http://i563.photobucket.com/albums/ss79/chefchevy/1948%20Harrison%20Underseat%20Heater/a2fb14ab-b769-42e5-b0a6-6f07334d9868.jpg)
Last edited by chef-chevy; 09/02/13 12:25 PM.
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Shade Tree Mechanic
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Shade Tree Mechanic
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You keep referring to '2' wires coming from the motor and out under the floorpan. I rewired my '47 about 14 yrs ago. One motor wire is grounded inside the heater the other one after exiting under the pan follows the frame to the firewall ,enters the FW through a grommet and connects to the heater SW on the opposite end of the rheostat from the power wire. I live just to the south of you so yes a heater doesn't get used much but the underseat type really heats things up! Dan
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Your correct very obvious in the 1st pic
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Shade Tree Mechanic
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Thank you SO MUCH Chef-Chevy!!
I knew the 2 wires had to connect to something before going out the car and to the firewall, but didn't know what.
Thank you very much for answering my mystery!!!
No, I don't have a new harness, but I can certainly make one. What is the connector the 2 wires off the motor connect to? Can you get it somewhere?
Kevin Thomas
Last edited by jughead; 09/02/13 05:31 PM.
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If you mean the fan motor,1 is a ground and other goes to the switch...You can get a harness from chevs of the 40s or the filling station I would suggest you go that direction and you will know they are correct...I wasted many years doing my own thing,and spent many more making it all correct
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No, the connector the 2 wires are screwed into then the hot comes off it and goes down through the floor.
It looks like a terminal board.
Last edited by jughead; 09/02/13 09:35 PM.
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I get yah,As I remember it is just an insulator..You could probably get by with grounding the heater elsewhere and spice the heater lead to the harness???
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![[Linked Image from i563.photobucket.com]](http://s563.photobucket.com/user/chefchevy/media/1948%20Harrison%20Underseat%20Heater/P1000536.jpg.html)
![[Linked Image from i563.photobucket.com]](http://s563.photobucket.com/user/chefchevy/media/1948%20Harrison%20Underseat%20Heater/a2fb14ab-b769-42e5-b0a6-6f07334d9868.jpg.html)