Robin America EY15-3, Руководство по обслуживанию

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5-4-2 PISTON AND PISTON RINGS
1) If no ring expander is available, install the ring
by placing the open end over the first land of
the piston, and spreading the ring only far
enough to slip it over the correct ring groove.
NOTE : Pay attention not to break the rings by
twisting. Install the oil ring first followed by the
second ring and then top ring. The surfaces of
the second ring and the top ring with marks are
to be faced up.
Fig. 5-17
Open End of
Piston Ring
5-4 REASSEMBLY PROCEDURES
● PRECAUTIONS FOR REASSEMBLY
1) Clean parts thoroughly before reassembly.
Pay most attention to cleanliness of piston, cylinder, crankshaft, connecting rod and bearings.
2) Scrape off all carbon deposits from cylinder head, piston top and piston ring grooves.
3) Check lip of oil seals. Replace oil seal if the lip is damaged. Apply oil to the lip before reassembly.
4) If the gasket is stuck on the mounting surface, remove it carefully by taking care not to damage the
surface.
5) Replace all the gaskets with new ones.
6) Replace keys, pins, bolts, nuts, etc., if necessary.
7) Torque bolts and nuts to specification refer to the "TORQUE SPECIFICATIONS" (See page 56).
8) Apply oil to rotating and sliding portions.
9) Check and adjust clearances and end plays where specified in this manual.
10) When the main parts are assembled, check the movement and sound by rotating it manually.
5-4-1 CRANKSHAFT
(1) Insert crankshaft in ball bearing of crankcase
wrapping the key-way with polyvinyl tape to
avoid damage to oil seal.
(2) Install woodruff key for flywheel on crankshaft.
Fig. 5-15
Crankshaft
Polyvinyl tape