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Gall757
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JUN 22, 04:30 PM
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Nice to see you, Patrick.........perhaps you can explain to Mr. Jatcko why a good looking spark is sometimes not so good.
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michael jatcko
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JUN 22, 04:45 PM
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I am 83 yrs old mechanic, starter at 12 building home made motor bikes, mechanic all my life, never could not start any kind of motor, this is my 5th fiero kit car built. I am overlooking something
got good blue spark from coil
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Patrick
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JUN 22, 05:32 PM
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| quote | Originally posted by Gall757:
Nice to see you, Patrick.........perhaps you can explain to Mr. Jatcko why a good looking spark is sometimes not so good.
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From what Michael has stated about his background, I suspect he's aware that testing spark strength by using a regular spark plug gap isn't enough at atmospheric pressure. A healthy spark outside of the combustion chamber will easily jump a quarter inch gap.
| quote | Originally posted by michael jatcko:
got good blue spark from coil
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That of course won't factor in any distributor cap and/or rotor issue. Does the spark jump a quarter inch from a spark plug lead?[This message has been edited by Patrick (edited 06-22-2020).]
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TM_Fiero
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JUN 22, 08:13 PM
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Pickup coil in the distributor gone bad?
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michael jatcko
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JUN 23, 10:54 AM
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Just checked pickup coil in car just had 195 reading, so pulled from car and removed coil from dis. got a 796 reading on bench ???
bad or not
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TM_Fiero
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JUN 23, 08:21 PM
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The changing measurements make it seem like there might be issues with the wires/connectors on the pickup coil. It's out now, good time to throw in a new one.
Doing some searching on the forum, one member found their problem to be some bad wires that go from the coil to the ICM. Something else to check.
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Gall757
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JUN 24, 12:44 PM
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Those wires to the pickup coil often get pinched under the distributor cap when it is installed....causing odd behavior.
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michael jatcko
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JUN 24, 02:59 PM
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this might be it?? I ordered a new delco pickup and a new hot coil.
the spark was good but not great.
find out Friday
THANKS FOR ALL THE HELP, GREAT SERVICE
A person some time can't get through a brick wall but another person can show there is a door way 2 ft away
MIKE
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Patrick
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JUN 24, 03:24 PM
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| quote | Originally posted by michael jatcko:
the spark was good but not great.
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I take it then that the spark wouldn't jump a quarter inch gap? 
| quote | Originally posted by michael jatcko:
I ordered a new delco pickup and a new hot coil.
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If it's an aftermarket coil, like an Accel Super Coil, perhaps hold off on using it. There has been plenty posted here over the years that they take their toll on the ignition system and eventually induce failure.[This message has been edited by Patrick (edited 06-24-2020).]
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Gall757
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JUN 27, 07:00 PM
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