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Perform the following operations:
• Check that the three oil spray jets are fitted and the three oil jet protectors from
service tool T3880504 are also fitted.
1. Thoroughly clean the mating surfaces of the crankcase and barrels taking care not to
damage the mating surfaces.
To make sure that the piston rings do not get damaged, the piston/connecting rod
assemblies must be fitted into the barrel before fitting the barrel to the engine.
Damaged piston rings may result in engine failure.
2. Fit the three piston and connecting rod assemblies into the barrel from the bottom
as noted for removal. Make sure that the piston alignment mark on the piston faces
the right hand side of the engine (away from the transmission cover).
3. Fit a new base gasket and refit the locating dowels as noted during removal.
4. With the aid of an assistant, carefully fit the barrel to the crankcase ensuring that the
connecting rods fit through the crankcase without contacting any of the three oil jets.
5. To hold the barrel in position, fit service tool T3880518 to the cylinder head and
secure using two of the original bolts for the cylinder head.
1. Piston alignment mark
2. T3880518 - Spacer