[larrys40]

My suggestion would be to put a little white paint on the dots. Either “white out” or a toothpick dab of white or yellow on them. Sometimes it’s hard to see the crank gear mark. Remember it’s to the right of the keyway. You can use a round inspection mirror against it to help ensure all is well. This is a rather easy simple job but is important it is done properly.

In removing the old gear you can lightly tap it off and also use a thinner profiled screwdriver to pry a little between the camshaft hub and the gear to carefully dislodge. Get the new gear lined up with your marks . Remember you can rotate the camshaft however you need to by using a screwdriver in between the camshaft dowels and against the threads. It won’t hurt them.
Some come if easy, others not. Fastest change was 20 minutes and longest had an old cloyes gear with aluminum hub separated from the fiber and a pipe wrench.

If you lost teeth in the pan you should retrieve them and/or it may a prudent time to remove the pan and dipper tray for clean out. I’d the dipper tray is sludges up pull the valve cover to see if it has sludge in valve chamber as well.

All the best !
Larry Shepard