RINA, a freelance air cooled hit and miss engine: Jim Service continues with the bedplate assembly. PART 2

摘要

The side plates are shown in figs 1 and 2. Figure 1 shows the timing side plate and fig 2 shows the plain side plate. Note the crankshaft clearance is inside the finished plates. Cut the profile using dimensions from fig 1. Mark the plates out on a 19deg. angle and mill down from the top edge using a 0.250in. dia. cutter until you just touch the line. I would use a slightly smaller cutter first and finish to size with the 0.250in. one. You need to mill next to the bearing caps on both plates and to the left of the timing gear mounting lug on the timing side plate.