I was looking at the line drawing of the 606 engine on page 157 in Stu Ritter's book. Let's say one removed the injector and filled, through the prechamber, the cylinder with a liquid like carbon cutter. (Carbon Cutter is used to clean fouled machine gun parts). Even if you had to fill a cylinder in the down position, it wouldn't be very much volume. Now, lets say you let the carbon cutter sit in the cylinder for an hour or so. It might attack enough of the carbon on the glow plug tip to allow it to move. You could remove the carbon cutter from the jug with a vacuum pump, or even a mityvac. Of course you would change your oil after.

Is success with this proposal possible? What are the dangers? Is a cylinder watertight enough to hold the carbon cutter for an hour? I dont' know.

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