Re: OMC 3 cylinder "loopers"

[amuller]

Initial checkout:

Plugs found NGK B7HS10 Is this a good plug for these motors?

Compression top 142, middle 155, bottom 144. Not quite as even as I’d like.

shift solenoid ohms about 6.8, amps about 2.3 (each).

Gearcase fluid seems to be conventional thick stuff, not the thinner stuff called for, plus had maybe 1/3 cup water. No sign of rusty material.

But, on my other one the prop can be rotated counterclockwise freely, with a snapping action. This one is locked in gear. I’m wondering if the shift piston might be stuck. I am not totally clear on the internals of these.

Control box seems OK but the interlock parts for the shift pushbuttons are missing.

Haven’t checked ignition yet. It has a newish-looking CDI amplifier box.

We shall see…..