UP DATE ON Engine not shutting off when key t/

1946 BN IHC · Mar 8, 2021

[Original message 3/06/21]
After a grand amount of assistance from others, the final out come of the situation is as follows: Key switch most possibly faulty and not
grounding out, found an alternate diagram for a 5 pin switch and ordered one for about $11.00 Canadian, Found a diagram for wiring 5 pin
switch:: all this after much wire chasing, and re chasing, checking that all wires were in correct position and not on wrong connector,
enlarging diagram to make certain of all connections and wires, AND copious amount of assistance from others.
Found a new diagram for a 5 pin switch with a starter /generator and will wire up accordingly when I pick it up / and discard the old one.
Thank you to all for your assistance.
Wm.

JMOR · Mar 8, 2021

(quoted from post at 13:11:04 03/08/21) [Original message 3/06/21]
After a grand amount of assistance from others, the final out come of the situation is as follows: Key switch most possibly faulty and not
grounding out, found an alternate diagram for a 5 pin switch and ordered one for about $11.00 Canadian, Found a diagram for wiring 5 pin
switch:: all this after much wire chasing, and re chasing, checking that all wires were in correct position and not on wrong connector,
enlarging diagram to make certain of all connections and wires, AND copious amount of assistance from others.
Found a new diagram for a 5 pin switch with a starter /generator and will wire up accordingly when I pick it up / and discard the old one.
Thank you to all for your assistance.
Wm.

ure was a lot of confusion & down wrong path in that adventure...almost all related to magneto or Kettering system. Looks like must have turned out to be magneto, since you say switch must not have been grounding.

Carlmac 369 · Mar 8, 2021

There are switches that ground when they are turned off and there are switches that do not ground when turned off. Depends on the tractor/engine wiring which one is used. I do know this is true.

It's been quite a while since I've messed with this particular situation so I'm not 100% sure about this but I think they both will plug into the same connector, the difference being that one switch will have a terminal going directly to ground on the switch body itself and the other will not.

Again, not 100% sure on that.

Meangreen · Mar 8, 2021

I have an Allis that won't die when you shut off the key and that's because something is messed up in the distributor and it won't hold the timing. I'll get it fixed one of these days.

Jim.ME · Mar 8, 2021

"I have an Allis that won't die when you shut off the key and that's because something is messed up in the distributor and it won't hold the timing. I'll get it fixed one of these days."

?? Please report back on that when you repair it. It will be interesting to understand how it does that. I always thought a distributor ignition system has to have a power source supplying the points, through the coil, to work. A distributor does not produce power, to my knowledge, so I don't see how it can self excite. I have seen bad switches, back feed from an alternator, and wires that had chaffed and made intermittent contact, supplying the ignition system with power at times. I never have encountered a distributor system that just runs on its own, like a magneto system.

UP DATE ON Engine not shutting off when key t/

1946 BN IHC

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JMOR

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Carlmac 369

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Meangreen

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Jim.ME

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