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points gap: .020 feeler vs ohm multimeter?
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<blockquote data-quote="Pappy" data-source="post: 494897" data-attributes="member: 3278"><p><strong>If you are at .020 that will get you very close to the timing mark that Richard's tool takes you to. Setting them with the tool assures your engine is firing at the proper time as well as being well in the ball park for a good hot spark.</strong></p><p><strong>I was looking for a reason for a weak spark on a belt driven magneto on a 1960 Evinrude V4. This system uses two sets of points to fire 4 cylinders so that means each set of points is firing 8000X/minute at 4000 RPM and doing this with a single coil. I started playing around with points gap and was the first time I actually could see the spark intensity change when I drifted a bit too far away from the .020 initial setting. Was pretty cool to actually be able to see it. The cam for points opening is a double lobe cam so points gap setting made a big difference in dwell time. Single condensor and the condensor wire is connected across both sets of points. Condensor for this set up is a .47Mfd instead of the normal .22mfd condensors you see in the 2 cylinder engines. </strong></p></blockquote><p></p>
[QUOTE="Pappy, post: 494897, member: 3278"] [B]If you are at .020 that will get you very close to the timing mark that Richard's tool takes you to. Setting them with the tool assures your engine is firing at the proper time as well as being well in the ball park for a good hot spark. I was looking for a reason for a weak spark on a belt driven magneto on a 1960 Evinrude V4. This system uses two sets of points to fire 4 cylinders so that means each set of points is firing 8000X/minute at 4000 RPM and doing this with a single coil. I started playing around with points gap and was the first time I actually could see the spark intensity change when I drifted a bit too far away from the .020 initial setting. Was pretty cool to actually be able to see it. The cam for points opening is a double lobe cam so points gap setting made a big difference in dwell time. Single condensor and the condensor wire is connected across both sets of points. Condensor for this set up is a .47Mfd instead of the normal .22mfd condensors you see in the 2 cylinder engines. [/B] [/QUOTE]
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points gap: .020 feeler vs ohm multimeter?
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