Re: 1940 Johnson A-10 Ignition

[cajuncook1]

Well, I removed and clean the points. Set them to 0.02 inches. It is kind of nice only having to set one points for both cylinders. Cleaned contact area where I could. Gently cleaned the distributor brushes and clean the distributor disk on the flywheel as well. I saw no cracks in the distributor disk, so it looks like there should be no issues with shorting.

Well, nice fat blue sparks on the upper and lower high tension spark plug leads with an open air gap tester set at 1/4 inch. The true test whether the distributor brushes are correctly set is when I get the motor started and there is no back firing at low speeds. I believe that would indicate firing is taking place at the same time on both cylinders instead of spark being grounded when the opposite piston is not at TDC.

Compression is a little low at 62psi at the top and 60psi at the bottom.

I am going to humor this for the time being, because the power head was locked up, so I will assume at this point the rings may be carboned up and not sealing well. Hopefully if I get this motor running and add some Seafoam to the fuel oil mix, it will loosening the rings.

I will keep ya posted.

Cheers,

David T.