I have been rebuilding a P200 motor that was suffering from low compression. Upon pulling the head, I was greeted with a highly scored surface, which was likely the culprit. In favour of time, I decided to purchase a new barrel and piston and keep the old one for re-boring in the future.
The barrel arrived today, the ports weren't perfect but that didn't matter as I had planned to alter the timings a touch with my dremel to better match the Simonini expansion chamber anyhow.
My issue comes in that the small dowel on the bottom of the cylinder that locates the cylinder relative to the casings is missing. Can I run the cylinder without this dowel? If not, where can I buy a suitable dowel?