Place the drive side crankcase down on to two blocks of wood chain side down put in flywheel assembly with bearings on shafts into crankcase place timing side on put two crankcase bolts through tighten up stand assembly up put spacer on drive shaft put on nut and washer pull flywheel assembly tight to drive side , check con rods are centre of bore hole measure if of centre pull crankcase apart place E76 shimms between bearing and flywheel to make conrods dead centre paint sealent on crankcases faces (we used osotite)make sure you put in G36/1 before you put crankcase half together ( red face if you forget) bolt assembly up put crankcase parts on (tip) when you put the chain side on clutch sprocket put your clutch carrier into PD20 this stops any damage to seal and bushes also place G40 ratchet shaft in postion with G81indicator lever pulled back to first gear postion with a strong elastic band by now you would have been told which barrels and pistons were to be put on this engine, we had thin alloy u plates that slide between the cylinder studs on conrods to hold them when putting piston and barrels on, next put in timing gears with all shimms and spacers valve lifting linkage ahd place steady plate over spindells, put on heads and brackets on pull down with torque spanner place clock guages on all four valve springs adjust tappets then adjust with the add of the clock gauge plus .0010th place timming disc on drive side main shaft and carry out timing useing the correct size ET49 half time pinion for back lash when all correct stamp mark on ET43 put nuts on to spindels tap in spindels to correct end play (cold) by this time you would have fitted and timed the mag and put the dynamo on, and fitted clutch and all covers when all this was done the foreman would come over check and stamp numbers on the engine then sent over to cycle assembly. ps G81 pulled back to first postion if you do not when you put the gearbox in you will not be able to select the correct gears
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