Setting points on F-20 with F4 magneto

Duanes · Oct 26, 2012

What is the points setting? Do you have to disengage the impulse coupling by lifting the pawl and then rotate until on the high point (lobe)? or just have number #1 cylinder on TDC and on high point of lobe?
Thanks

teddy52food · Oct 26, 2012

.010 to .015, at the high point of the cam. .012 is about right.

rustred · Oct 26, 2012

once impulse is getting ready to trip just turn ever so slowly and the moment it trips stop there and check the gap. it will then be on high point of cam. no sense going by tdc because if timing is out cam is not nesessarily at the highest point.

Nebraska Kirk · Oct 26, 2012

Removed incorrect information,

my apologies to rustred, he was right and I was wrong.

F-Dean · Oct 27, 2012

Take the plugs out and have the wife crank it until the points are at the high point of the "Points-cam."

El Toro · Oct 27, 2012

Just bump the engine over until the rubbing block on the points is on the high point on one of the lobes. Then adjust your points. Coat the lobes with some lube so the rubbing block doesn't wear so fast. Hal

teddy52food · Oct 27, 2012

That doesn't work with a magneto unless you can turn it backwards

rustred · Oct 29, 2012

this is to neb. kirk. it works just as i suggested, as soon as the impuse snaps the points just open and do not rotate and close. do not have to rotate backwards either. i give accurate info. to go by and do not waste my time printing guesses. i guess to prove me wrong go out and try by the snap method and you will see they are open on high side of cam.

rustred · Oct 29, 2012

yes and you will hear the snap first before it can rotate on high side of cam.

Setting points on F-20 with F4 magneto

Duanes

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teddy52food

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rustred

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Nebraska Kirk

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F-Dean

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El Toro

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teddy52food

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rustred

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rustred

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