Neutral safety switch 4+3.
Thread Starter
Pro
Joined: Jun 2013
Posts: 524
Likes: 8
Neutral safety switch 4+3.
I have my clutch pedal out of my 84' and I had found the safety switch was by passed and the wire was hanging. Out of curosity I Ohm tested the switch to see if I could tell if it was bad. When the pedal is relaxed it shows nothing then when depressed it shoots up to 15-20 Ohms if I remember correctly does that mean it is functioning correctly? No idea if it is the original switch or not but it does have the old L style plug. Wondering if I should replace it while it easy to do I dont know how ofter these fail.
Pro
Joined: Mar 2024
Posts: 537
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From: Northern California
My neutral start switch was getting lazy on me so I just bypassed it. I instinctively clutch in on starts anyways, so it was not too much of a danger to have it bypassed. But from what you describe, yours should theoretically be in operational condition.
Thread Starter
Pro
Joined: Jun 2013
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I'm in the process of doing a restore so I dont have power to the car yet which is why I gave it a quick bench test. The car is bypassed currently they cut the plug off and butted them together. I don't worry about me but if my son or someone else might drive it and forget. I may just order a new one and try and find a plug off an old harness to put it back to factory specs to eliminate any flub's!
Instructor
Joined: Jul 2024
Posts: 153
Likes: 52
From: Northridge, CA
The switch should measure open (infinite Ohms) when the clutch is engaged (not pressed down) and shorted (0 Ohms) when disengaged (pressed down). 15 to 20 Ohms is bad and indicates that the switch is worn out, dirty, or corroded.
Thread Starter
Pro
Joined: Jun 2013
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So I bought a new safety switch and was comparing them with the meter. The old one not depressed is reading OUCh which I guess infinite when depressed it reads 47.00 ohms. The new one reads OUCH and halfway thru the cycle it goes 0.0 then fully depressed back to OUCH does that sound right? Or is there a better way to test these before I install?
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