4. Disassembly and Reassembly
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4. Disassembly and Reassembly
4.1 Disassembly and Reassembly Precautions
(1) Disassembly
• Take sufficient time to accurately pin-point the cause of the trouble, and disassemble only those
parts which are necessary.
• Be careful to keep all disassembled parts in order.
• Prepare disassembly tools.
• Prepare a cleaner and cleaning can.
• Clear an adequate area for parts and prepare a container(s)
• Drain cooling water (seawater, fresh water) and lube oil.
• Close the Kingston cock
(2) Reassembly
• Sufficiently clean and inspect all parls to be assembled.
• Coat sliding and rotating parts with new engine oil when assembling.
• Replace all gaskets and O-rings.
• Use a liquid packing agent as necessary to prevent oil/water leaks.
• Check the oil and thrust clearances. etc. of parts when assembling
• Make sure you use the correct bolt/nut/washer.
• Tighten main bolts/nuts to the specified torque. Be especially careful not to over tighten the
aluminum alloy part mounting bolts.
• Align match marks (if any) when assembling. Make sure that the correct sets of parts are used for
bearings, pistons, and other parts where required.
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