Re: The Duchess Project: 1940 Super 8 Convertible Sedan

Posted by Joe Santana On 2021/1/27 10:08:19

OVERDRIVE KICKDOWN FUNCTION:
1. I tested the delay between the top #1 to #4 contacts and the bottom Term #3-6 contacts and made a video of the manual test. I could also hear the #6 click in the solenoid. www.mktx.com/packard/ODContactDelay.MOV

2. I checked the continuity of all the wires in the circuit with a multimeter.
a. Terminal#5 to the RHLockout switch
b. RH Kickdown switch to LH Lockout switch
c. LH Kickdown switch to OD Extension Junction
d. OD Extension Junction to Governor
e. Terminal#2 to LowTension Distributor

I'm very suspicious of the connector. I cleaned it and plugged the wires into it, and wrapped it with tape because it seem loose. I'm going the Ace to get alligator clips to gin up a longer wire to test from the LH Kickdown through the junction to the Governor.
I'll get a new connector and some shrinking insulation to hold it.

f. I tested the continuity and break of the Kickdown switch by having my sister press all the way down the accelerator. It breaks the circuit.

g. I tested the Lockout switch with it pushed in (continuity) and pulled out (break) and that works.

h. The Governor functions correctly, turning on/off the red OD light indicator at proper speeds.

So I'm really focused on the junction wire.

Attach file:

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  ODSchematic.JPG (119.14 KB)


  harnessinstructions.jpg (299.75 KB)


  1CheckTerm5_to_RHLockout.jpg (228.28 KB)


  2CheckTerm5_to_RHLockout.jpg (91.00 KB)


  CheckRHKickdown.jpg (112.89 KB)


  CheckRHLockOut.jpg (106.90 KB)


  ODandRearJunction.jpg (106.91 KB)