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santi22
Bone Stock
Posts:1
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| 05/10/2008 8:15 AM |
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| How to test coil and distributor for spark. I know how to test TDC Sensor |
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ChevyMan0784
Lift & Lockers
Posts:699
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| 05/26/2008 10:56 PM |
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The way I go about that is this: pull one plug at a time. Reconnect the wire to the plug. Hold it to the frame or grounded metal like the block (touch the threads on the plug to the grounded metal). Then turn the rig over to see if it sparks. You should know right away. Then turn off your rig, put that plug back in, and start the next. This should tell you which if any plugs arent sparking.
If you are having problems firing up your rig... and you have spark. Check fuel delivery. Have some one turn the motor over with the intake off. Look into the carb, or whatever you have, and see if you can smell or see gas going in. If not, then you may have a timing issue. Check your timing with a gun. If that is good, then I dont know what to tell ya!!! lol. If you cant get your timing right, you could have a timing chain issue, or even a cam issue where it meets the distributor.
Rick, you got anything to add?? |
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gimmie fuel gimmie fire gimmie that which I desire-James Hetfield
*Never give an Irish man good cause for revenge.
*Guns dont kill people, but they sure help!!
*98% OF AMERICANS SAY 'OH S**t' BEFORE GOING IN THE DITCH ON A ICEY ROAD.
THE OTHER 2% ARE FROM ALASKA, AND THEY SAY, 'HOLD MY BEER AND WATCH THIS |
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jeepyj
Bone Stock
Posts:32
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| 05/27/2008 12:40 AM |
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| not a genius but i would check motor and battery grounds after all that.... |
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ChevyMan0784
Lift & Lockers
Posts:699
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| 05/27/2008 1:37 AM |
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| Hmmm.... thats always a plus too. Assuming the rig doesnt start. Is your rig starting, or not? What was the grounds for the question? I assume it is because it wont fire up. As long as its turning over, you should have power to the distributer, unless the power wire from the starter to the distributer is broke or corroded. Also make sure the wires going from the distributer to the cap/coil are good too. |
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gimmie fuel gimmie fire gimmie that which I desire-James Hetfield
*Never give an Irish man good cause for revenge.
*Guns dont kill people, but they sure help!!
*98% OF AMERICANS SAY 'OH S**t' BEFORE GOING IN THE DITCH ON A ICEY ROAD.
THE OTHER 2% ARE FROM ALASKA, AND THEY SAY, 'HOLD MY BEER AND WATCH THIS |
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webby4x4
Forum Admin, Magazine Editor
Rock Star
Posts:2375
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| 05/27/2008 9:12 PM |
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Well, there's the ol' "lick your finger and grab a hold" method. :)
Personally, any more, I usually just hook up a timing light to each spark plug wire while cranking and see if I'm getting spark that way. It's easy and takes all of 3 or 4 minutes to do it.
Rick |
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Rick Webster
Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication
- - - - - - - - - - - - - - - - - - - - -
'74 FJ40 Land Cruiser
"Measure once, cut twice" |
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ChevyMan0784
Lift & Lockers
Posts:699
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| 05/28/2008 12:47 AM |
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| Hey man, real men dont use shortcuts!!!! lol, good idea. Work smarter, not harder right?? |
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gimmie fuel gimmie fire gimmie that which I desire-James Hetfield
*Never give an Irish man good cause for revenge.
*Guns dont kill people, but they sure help!!
*98% OF AMERICANS SAY 'OH S**t' BEFORE GOING IN THE DITCH ON A ICEY ROAD.
THE OTHER 2% ARE FROM ALASKA, AND THEY SAY, 'HOLD MY BEER AND WATCH THIS |
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