Can anyone advise me about what appears to be a wire descending from ignition switch to a plug (sensor) directly below the ignition switch in the transmission casing.I assume it is a sensor for hydraulic oil. How can one determine if this sensor is defective and how is it removed. Doesn't appear to be a screw in unit,does it simply need to be extracted? This old girl occasionally won't start w/o jiggling this wire.
LD1
Epic Contributor
It is more than likely the neutral saftey switch. It allows you to only start it in neutral.
LD1
Epic Contributor
Without a volt meter, no. Do you have a volt meter?
Soundguy
Old Timer
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it's a simple NS switch.. it looks for the range selector to be in neutral before you can start. if the wires are good and it is causing problems, it's either the switch or the switch not getting moved enough. the 65+ machines used them..
53 1 C5NN11N500A SWITCH Switch, Starter Safety, Years: 01/01/1965-09/30/1966 53A 1 9672467 O-RING O-Ring, .562" ID x .103" Thk, Years: 01/01/1965-09/30/1966
53B 1 C5NN11N005A SHIM Shim Pack, Switch to Shift Cover, U.S., No Longer Serviced., Years: 01/01/1965-09/30/1966
54 1 C5NN11467H PLUNGER Plunger, Starter Safety Switch, W/Pressed Steel Cover, Red, .990/.995 (25.146/25.273mm), No Longer Serviced., Years: 01/01/1965-09/30/1966
54 1 C5NN11467J Plunger, Starter Safety Switch, Red, 1.315/1.320 (33.401/33.528mm), No Longer Serviced., Years: 01/01/1965-09/30/1966
55 1 C5NN11N520A ROLLER Roller, Starter Safety Switch, No Longer Serviced., Years: 01/01/1965-09/30/1966
56 1 C5NN11N517B Connector, Starter Safety Switch, U.S., Procure Locally, No Longer Serviced., Years: 01/01/1965-09/30/1966
soundguy
53 1 C5NN11N500A SWITCH Switch, Starter Safety, Years: 01/01/1965-09/30/1966 53A 1 9672467 O-RING O-Ring, .562" ID x .103" Thk, Years: 01/01/1965-09/30/1966
53B 1 C5NN11N005A SHIM Shim Pack, Switch to Shift Cover, U.S., No Longer Serviced., Years: 01/01/1965-09/30/1966
54 1 C5NN11467H PLUNGER Plunger, Starter Safety Switch, W/Pressed Steel Cover, Red, .990/.995 (25.146/25.273mm), No Longer Serviced., Years: 01/01/1965-09/30/1966
54 1 C5NN11467J Plunger, Starter Safety Switch, Red, 1.315/1.320 (33.401/33.528mm), No Longer Serviced., Years: 01/01/1965-09/30/1966
55 1 C5NN11N520A ROLLER Roller, Starter Safety Switch, No Longer Serviced., Years: 01/01/1965-09/30/1966
56 1 C5NN11N517B Connector, Starter Safety Switch, U.S., Procure Locally, No Longer Serviced., Years: 01/01/1965-09/30/1966
soundguy
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LD1
Epic Contributor
It probabally has two wires going to it.
And just a guess, but typically it is a normally open switch that needs to be closed when in neutral to complete the circuit and allow for starting.
Use the DVOM and check these things out. Like unplug the wires and check the ohms across the switch. It should read 0 or near 0 when in neutral and infinity (no continuety) when in any gears.
If you consistantally get these readings, move on to the wires. Look for breaks. Check resistance of the wires from the switch to where ever they go to. Try wiggling and moving them when doing this as well.
Worst case scenerio....replace the two wires with new ones. Shouldnt cost you more than $10. For me...I have connectors and wires laying around and it wouldnt cost anything but time. And if that doesnt get it, the switch shouldnt run you more than $50.
