215
POWERHEAD
INSPECTION
10
the cylinder. Use a feeler gauge to measure the
ring end gap.
IMPORTANT:
Ring end gap increases approxi-
mately 0.003 in. (0.076 mm) for each 0.001 in.
(0.025 mm) increase in cylinder bore diameter.
DO NOT exceed cylinder oversize dimension.
Use a machinist’s straightedge to check for proper
ring clearance. Position piston rings on piston.
Push rings into groove and hold straightedge
against the side of the piston. Rings must be even
or just below the surface of piston. Rings must
move freely in piston ring groove.
Bearings
Inspect center main bearings and split sleeves for
excess wear, nicks, or scratches. Replace if nec-
essary.
Inspect crankshaft rod bearings for excess wear,
nicks, or scratches. Replace if necessary.
002143
Ring End Gap Specification
Standard or
Oversize rings
0.011 to 0.023 in.
(0.28 to 0.58 mm)
31796
24381
24377
Summary of Contents for E-tec 75 HP
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Page 233: ...233 POWERHEAD POWERHEAD VIEWS 10 POWERHEAD VIEWS Port Short Block Starboard Short Block ...
Page 234: ...234 POWERHEAD POWERHEAD VIEWS Port Dressed Powerhead Starboard Dressed Powerhead ...
Page 235: ...235 POWERHEAD POWERHEAD VIEWS 10 Front ...
Page 236: ...236 POWERHEAD POWERHEAD VIEWS Rear ...
Page 237: ...237 POWERHEAD POWERHEAD VIEWS 10 Top ...
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