Steelbreeze

FLUID DRIVE HARNESS DIAGRAM NEEDED

Recommended Posts

Steelbreeze    5

We're in the final stages of installing the aftermarket wiring harness but other than having the complete wiring diagram for the car, we need a more isolated diagram for the fluid drive wiring and components. I saw Long Island wiring sells a harness for this area but not sure if we need to purchase that since we are not using an original 6 volt harness for the rest of the car. Any helpful hints will be appreciated. Please post the diagram if anyone has this info. We are not sure other than the trans solenoids if all of the components are on the car. ie: ignition interrupt switch, etc. Thanx for the help. Hope to be driving her soon.

Share this post


Link to post
Share on other sites
Spinneyhill    204

Can you tell us the make and year of vehicle.

 

Fluid drive refers to the clutch. You mean the gearbox? I assume you mean either the overdrive or later four speed?

Edited by Spinneyhill (see edit history)

Share this post


Link to post
Share on other sites
Rusty_OToole    402

Here is one for a 51 Chrysler, hope it helps. They were pretty standard in the postwar period. Just the location of some components changed, not the function or wiring schematic.

 

To enlarge the diagram, put the cursor on it, right click, left click Open In New Tab. Then go to the new tab and left click to enlarge.

 

Best idea might be to print it off.

 

Coil and distributor are to the lower left in the diagram. Find the coil and highlight the wires from coil to carb, and then to the trans controls.

51 Chrysler wiring diagram 002.jpg

Edited by Rusty_OToole (see edit history)

Share this post


Link to post
Share on other sites
Rusty_OToole    402

The wiring is fairly simple once you understand it. There are 2 wires that come off the coil (both sides) to a small box with 4 posts, that contains a resistor and a circuit breaker. Then 2 wires from there, to 2 switches on the carburetor. One actuated at full throttle, the other at closed throttle. Then a couple of wires to the transmission controls. Go by the diagram and do one wire at a time and you shouldn't have any trouble.

 

This is too obvious, but all this has to be 6 volts. I don't know if the controls will stand 12 volts and I wouldn't chance it, they are pretty hard to replace.

Share this post


Link to post
Share on other sites
Rusty_OToole    402

I understand you are converting to 12V. You must understand, you will need to have a mixed 6v/12v system unless you replace every electrical component with 12v equivalents. The light bulbs are fairly easy except maybe the instrument lights, but trans controls, coil, wiper motor, horns, heater blower, radio etc not so easy.

Share this post


Link to post
Share on other sites
Steelbreeze    5
9 hours ago, Spinneyhill said:

Can you tell us the make and year of vehicle.

 

Fluid drive refers to the clutch. You mean the gearbox? I assume you mean either the overdrive or later four speed?

Sorry, 47 Chrysler Windsor.

Share this post


Link to post
Share on other sites
c49er    67

You will need the 1946-48 Chrysler/ DeSoto M-5 "Hydraulically Operated" transmission diagram. It has a 5 terminal relay box on the drivers side fender panel.

1949-53 cars use M-6 transmission with a different wiring circuit using  the resister/circuit breaker box on the air cleaner bracket.

Share this post


Link to post
Share on other sites
Spinneyhill    204

Here are a couple of diagrams from MoToR Manual 1947. The 1950 edition has the same diagrams with captions saying 1946-48 C & DeS.

Chrysler1946-transmission-MoToR-p1.thumb.jpg.61f662b2f77139ab827f03739940976d.jpg

 

Chrysler1946-transmission-MoToR-p2.thumb.jpg.f94bac5e6e4df68ca4fd39165777341b.jpg

Share this post


Link to post
Share on other sites
Steelbreeze    5

Thanx, Our car is the 47 Chrysler fluid drive. We need to know what is involved other than supplying power to solinoids. These actually are the diagrams we are using. I think we have it figured out but have to hook a micro switch to the accelerator. Then we should bet in business

Edited by Steelbreeze (see edit history)

Share this post


Link to post
Share on other sites
Rusty_OToole    402

You have to study the diagrams to figure out how the trans works. First off it is a conventional gearshift, like a regular 3 speed. But the gears are shifted by a hydraulic piston. The hydraulic pressure comes from a pump at the back of the trans, and is controlled by a solenoid valve. The valve is controlled by a system of switches. There is a governor that prevents shifting until the trans reaches a certain speed. There are 2 valves on the carburetor, one allows shifting when the throttle is closed (normal shift) the other when the throttle is wide open (kickdown shift). There is a 1-2 hydraulic shift. Then there is a manual shift for low range- high range - reverse. So you have a choice of Low range (1-2 speed) High range (1-2 speed) and Reverse (1 speed). It may take a while but you will figure it out. I did, and I don't even have an engineering degree ha ha.

Share this post


Link to post
Share on other sites
Spinneyhill    204
3 hours ago, Steelbreeze said:

Thanx, Our car is the 47 Chrysler fluid drive. We need to know what is involved other than supplying power to solinoids. These actually are the diagrams we are using. I think we have it figured out but have to hook a micro switch to the accelerator. Then we should bet in business

 

Do you have the text that goes with the diagrams? I can scan it if you like.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now