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Inspection: Piston protrusion from crankcase top surface
• The amount of piston protrusion affects engine performance and
must therefore be inspected without fail.
• Set the piston at the top dead center.
• Make the measurement at the two measurement points on the
top face of the piston and calculate the average value.
• If the average value deviates from the standard value, check the
clearances between all relevant parts.
Inspection: Connecting rod end play
• Measure the end play for every connecting rod.
• If the measurement exceeds the limit, replace the defective
part(s).
Inspection: Cylinder liner flange protrusion and step height
between adjacent cylinder liners
• Install so that it does not run onto the cylinder liner flange
and tighten and to the torque of 49 N
·m {5 kgf·m}.
• Measure the cylinder liner flange protrusion.
• If the measurement deviates from the standard value, inspect
the installation and replace the defective part(s).
• If the difference in the adjacent flange protrusion deviates from
the standard value, replace the defective part(s) upon checking
the installed condition.
CAUTION
• If the cylinder liner flange protrusion is not within the speci-
fied value, the contact pressure of the cylinder head gasket
against the bore of the cylinder will not be high enough to
prevent gas leakage.
PISTON, CONNECTING ROD AND CYLINDER LINER
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