We’ve rebuilt the engine for this Riley RM this year. The 1.5 litre twin cam engine is essentially a pre-war design with white metal supporting the crankshaft instead of the more modern shell bearings we are used to seeing. It takes a little longer with an old engine like this as there is more work involved and there isn’t always access to new parts. The engine is an interesting design with two camshafts in the block actuated the valves via push rods and rocker arms.
