point set check, delayed parallel circuit, 1968 55HP Johnson

[Buckstr]

Hi all, my saga continues trying to get this thing running good. I have spark and compression and fuel but it only runs intermittantly.

Here is my latest question. I am checking my point set continuity, SELOC manual says to add another timing mark to my flywheel 1-3/8" from existing mark. When measuring continuity between the wire to the point set and starter solenoid, I should break continuity when I am aligned with original mark, then again when aligned with added mark. Indicating the first set of points and then the second set of points have opened and closed respectively.

When I do the test, I break continuity all the way between the two marks, I do not have continuity between the marks ( counter to what my manual says is correct) .This happens as both point sets are open over this stretch of flywheel rotation.

Because the points are wired in a paralleI circuit, the only way to break continuity is when both point sets are open. I am thinking the manual is wrong on this when it says one point set opens , closes and then the other opens and actualy my points are OK as is. Then again perhpas I am wrong and I have a short somewhere or something.

Please let me know if you know how the test for this should be done and if I am missing something.

Thanks for the help.

 

[Joe Reeves]

Re: point set check, delayed parallel circuit, 1968 55HP Johnson

Buck..... Disregard what you've read on how to set those points and do the following.

There are three lobes on the crankshaft. Turning the crankshaft so that you can obtain the widest opening of the points, set the gap to .010. Do one set of points at a time, turning the crankshaft so that you're setting the gap on all three lobes.

You need to use all three lobes in setting the points as the lobes may vary which will affect the point gap.

You may wind up having the gap set at the three lobes in such a manner that it will read .010, .010, and .011 or possiblly .012. That's okay.

You do not want the points to read anything under .010 such as .010, .010, and .009. This would cause problems.

 

[Buckstr]

Re: point set check, delayed parallel circuit, 1968 55HP Johnson

Thanks for the reply! Will do as you say.