drolston
Well-known member
The starter drive shown by JSeery is the one I switched to. I had the same problem of having the starter stall out after half a turn or so. With enough attempts, it would usually get past the hard part and spin the motor to start. Part of my problem was new rebuild being a little stiff, and bored, stroked with Offy 425 heads putting compression over 9 to 1. The starter would spin the motor like crazy with the plugs out. Try that to confirm that it is not a ring gear out of position, or some other mechanical binding.
I thought I had a good ground path, but to be sure I ran a ground cable directly from the negative terminal of the battery to under the head of a starter mounting bolt. That did the trick. It turns over every time now. A mere fraction of an Ohm anywhere in the starter lead or ground will really cut the voltage that the starter sees when cranking.
I thought I had a good ground path, but to be sure I ran a ground cable directly from the negative terminal of the battery to under the head of a starter mounting bolt. That did the trick. It turns over every time now. A mere fraction of an Ohm anywhere in the starter lead or ground will really cut the voltage that the starter sees when cranking.