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ENGINE OVERHAUL 33 Pistons - assembling 1. Using a suitable expander fit oil control spring rails and expander. 2. Using a suitable expander fit 2nd compression ring with ’TOP’ towards top of piston. 3. Using a suitable expander fit top compression ring either way up. 4. Position ring gaps as follows: Compression ring gaps A and B at 120 ° to each other and away from the inlet valve cut ° to each other. Oil control expander gap D at 120 ° to oil control rail gaps. Pistons and connecting rods - refit 1. Fit big-end bearing shell to connecting rod. and gudgeon pin with engine oil. 3. Lubricate cylinder bores and crankshaft big-end journals with engine oil. 4. Fit ring clamp LRT-12-519 to each piston in turn and compress piston rings. 5. Insert each piston and connecting rod into its respective cylinder bore ensuring arrow on 6. Fit big-end bearings. |