6 teaspoons, over 15 minute intervals.
The motor is clean inside, but it sat for anywhere from 10 - 20 years, there is no cylinder wear at the top of the cylinders, these things we know.
Therefore, i believe it to be glazed walls. and if i am wrong, well, i am pulling the entire motor and doing a rebuild, so i have nothing to lose.
I did this years ago on chrome rings. worked like a charm.
Will it work this time? hell if I know. I'll get back to ya.