1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

no spark 79

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Old Sep 26, 2007 | 11:25 AM
  #1  
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From: https://www2.mazda.com/en/100th/
no spark 79

hey all, so on the way back from SSX the ignition seems to have died in my 79, i made it to the gym, 10miles from home and then no start...

i had enough tools to see that theres no spark, but i didnt have a voltmeter or testlight in my gymbag, so i had to stop there.

the car has the original points distributor, points, condensors, cap, rotor, plugs and wires have maybe 1500miles on em...

any ideas? i get no spark leading or trailing
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Old Sep 26, 2007 | 11:39 AM
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Use a jumper wire from battery + to both coil's + terminals. if it runs, then you know what it is.
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Old Sep 26, 2007 | 11:42 AM
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You said no start. Do you have spark when the key goes to the On position? In order to test this you need to crank the engine and then let go of the key and watch the spark plug. If it sparks, you have a bad 'start' wire. I believe it is yellow and black.

Did you shut if off and it didn't restart? Or did it simply die while driving?
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Old Sep 26, 2007 | 11:51 AM
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From: https://www2.mazda.com/en/100th/
update, i think wacky's right... no power to the coils, thats the "distributor relay"?

jeff; i pulled the dizzy and spun it by hand and got nothing
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Old Sep 26, 2007 | 12:42 PM
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From: Socal
"ignition relay"
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Old Sep 26, 2007 | 02:16 PM
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From: https://www2.mazda.com/en/100th/
well it runs now, dunno exactly why. seems like the points werent working? i regapped em, and it fired right up?
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Old Sep 26, 2007 | 02:20 PM
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Maybe you didn't tighten the points down good earlier.

Loose points == no sparky if they get far enough apart.

I don't miss points and dwell meters at all :-)
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Old Sep 26, 2007 | 02:23 PM
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From: https://www2.mazda.com/en/100th/
Originally Posted by t_g_farrell
Maybe you didn't tighten the points down good earlier.

Loose points == no sparky if they get far enough apart.

I don't miss points and dwell meters at all :-)
yeah i rebuilt it, too see if i could, now that i know i can, i'd upgrade
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Old Sep 26, 2007 | 03:05 PM
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22.6 mpg for the SS trip, thats not bad!
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Old Sep 26, 2007 | 03:18 PM
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And why didnt you meet up with me??? I brought the cig lighter assembly and a few goodies for you
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Old Sep 26, 2007 | 05:32 PM
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From: https://www2.mazda.com/en/100th/
Originally Posted by wackyracer
And why didnt you meet up with me??? I brought the cig lighter assembly and a few goodies for you
cause we're retarded... i'm amazed you remembered though, thats damn cool!
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