Stage Three: Engine assembly

Stage three, the engine assembly started as soon as the newly water/bead blasted engine cases came back from the blaster. While they look like new, care must be taken that ALL the beads are removed from the engine before reassembly commences. Even a single glass bead can cause bearing failure at a later date.


Engine cases like new. Water blasting is an extra expense which is quite justified in terms of cleaning up the components and the final appearance of the alloy on the bike.



Those nice clean cases go straight in the sink for a good wash with detergent. Wash and rinse, wash and rinse - until no more beads can be felt on the bottom of the sink (they are easy to feel). Once you are sure they are all washed out, rinse the cases another five or six times, blow dry with a compressor and then rinse a few more times. You can't be too careful. If there are oilways they should be physically cleaned.


The Benelli 2C did not have painted engine cases (in the style of Japanese bikes). However, we decided to paint ours two-pack silver as the finish is almost identical to the alloy and the surface prevents oxidization. It is also much easier to keep clean! Pictured is the masked and painted engine.



Work on the crank has been completed - it has been balanced and fitted with new bearings and seals. The rest of the motor has been treated to new seals and bearings and reassembly begins.


Rebuilt engine on the bench. The next task will be to fit the engine into the frame.