b) Bring the first cylinder to the beginning of the compression stroke, noting the position of the distributor rotor. Insert a timing pin "A" of diameter 6 mm into the hole provided in the clutch bell housing (under the generator). Slowly turn the engine until the timing pin enters the slot in the flywheel. In this the engine is at the firing point. (First cylinder) i.e. 12° before T.D.C.