Stock Leading Coil
#4
Turbo power, activate!
iTrader: (7)
well the resistance should be less then 1 ohm, I dont know about the voltage though.
I dont even think you can measure the voltage on them, unless you have an expensive measurement tool for voltage that can go up to 50k volts
The 0nly voltage testing you can do on the coil is from the BLK/YEL wire terminals, and thats for seeing if there is 12 volts there.
I dont even think you can measure the voltage on them, unless you have an expensive measurement tool for voltage that can go up to 50k volts
The 0nly voltage testing you can do on the coil is from the BLK/YEL wire terminals, and thats for seeing if there is 12 volts there.
#7
Engine, Not Motor
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well the resistance should be less then 1 ohm, I dont know about the voltage though.
I dont even think you can measure the voltage on them, unless you have an expensive measurement tool for voltage that can go up to 50k volts
The 0nly voltage testing you can do on the coil is from the BLK/YEL wire terminals, and thats for seeing if there is 12 volts there.
I dont even think you can measure the voltage on them, unless you have an expensive measurement tool for voltage that can go up to 50k volts
The 0nly voltage testing you can do on the coil is from the BLK/YEL wire terminals, and thats for seeing if there is 12 volts there.
Though honestly, measuring the coil output voltage is not important. As long as it fires the plug, it's fine.
Also be careful when testing the coil input voltage with your meter. When the coil fires it kicks back several thousand volts. You can fry cheap meters and give yourself a nasty surprise.
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#10
meat popsicle
Join Date: Apr 2004
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#11
yes. primary voltage should be checked from the + and - on the coil and it should be below 1 ohm. now the reason I'm bumping this is because noone ever posted if they know what the secondary voltage is supposed to be. on all other coils all you do is measure the load from the coil output to the - terminal. I'm not getting any load at all. does anyone know why or what it should be? Primary is at .5 ohm, but I cant figure out any way to read secondary resistance or what it should be. FSM says nothing about the secondary resistance. (which is really dumb for them to leave out) And yes i'm getting spark blowout.
#12
Rotary Freak
I have never seen what it should be on a RX-7. I MIGHT go look at a spare coil in the shed later today or tomorrow. Maybe compare a hot one to a cold one. It's a bit of a bother to go out to a working car and mess around with it.
#13
Rotary Freak
I tried that on a spare LEAD coil and there is no reading at all. Not even a milli ohm. So that test isn't valid for RX I suppose. There's no reason for me to believe the coil I looked at is bad. I've never ever had a coil failure...ever. I'm talking about the secondary coil resistance test in the second depiction in my jpg in the above post.
In the first test above I get 0.3 ohms. But heck, my crummy meter leads touched together give 0.1 ohms, so I suppose the real reading is 0.2 ohms for that.
In the first test above I get 0.3 ohms. But heck, my crummy meter leads touched together give 0.1 ohms, so I suppose the real reading is 0.2 ohms for that.
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stickmantijuana
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09-10-15 07:58 PM