Topic: 1948 Zephyr, points – Antique Outboard Motor Club,Inc

This topic has 22 replies, 7 voices, and was last updated 4 years, 11 months ago by 7tcu.

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May 26, 2019 at 12:29 pm #176071
7tcu
Participant
I took off the flywheel and everything g looks good but I have not figured out what makes the points open up. I am used to seeing a cam come around and open them but I do not see anything that would open the points up so you can set the gap. What am I missing?
May 26, 2019 at 1:37 pm #176073
Buccaneer
Participant
US Member
I have not opened up a Zephyr in years, but is the cam inside the flywheel?

Prepare to be boarded!
May 26, 2019 at 2:47 pm #176074
7tcu
Participant
It is coned shaped inside the flywheel that probably opens the points, but I don’t see any cam, it all looks concentric, but it could be I am just eye balling the fly wheel. So as the flywheel opens the points, how would you go about setting the gap.
May 26, 2019 at 4:40 pm #176075
frankr
Participant
US Member
Same here, too many years, too many tears But I’d be looking for a cam ground on the flywheel hub where it sticks down between the points. It was fairly common practice, but I can’t say for the zephyr.
May 26, 2019 at 5:17 pm #176082
7tcu
Participant
Giving a good look, one side to the cone in the flywheel looks thicker than the other side and would open up the points. and as setting the points it looks like you just insert the points in its holder and clamp the down and they are set. this set of points fit in slot and then are clamped down. looks like it was engineered so you don’t have to set them.
May 27, 2019 at 10:00 am #176101
Mumbles
Participant
The cam is ground into the crankshaft. Look closely and you can see it. The flat end of the points pushrod contacts the crank in this area.
- This reply was modified 4 years, 11 months ago by Mumbles.
May 27, 2019 at 12:19 pm #176117
7tcu
Participant
My Zephyr is a model 4404 and is different from the picture you sent, so the cam has to be in the flywheel. Too much distance from the shaft to the points for a cam on the shaft.
- This reply was modified 4 years, 11 months ago by Mumbles.
May 27, 2019 at 12:49 pm #176124
Mumbles
Participant
If you roll those felt oiling wicks back you should see the pushrods which ride on the crank and open the points. If your points are not opening or can’t be adjusted, either the pushrods are missing or they are severely worn.

If you loosen the clamp screw on the bottom of the mag plate, you will be able to lift the plate right off the motor. This will make it easier to see the pushrods and the corresponding notch in the crank.
May 27, 2019 at 2:37 pm #176130
7tcu
Participant
Yes, the end of the points are under the felt, and the cone in side the flywheel is what opens and closes the points. The cone looks concentric but is not. It is thicker on one side to open and close e the point.
- This reply was modified 4 years, 11 months ago by Mumbles.
May 27, 2019 at 6:52 pm #176145
Mumbles
Participant
Ok, then please explain how you are going to set the points without an access hole in the flywheel for a feeler gauge?
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