Cleaning; Inspection - Mercury MerCruiser D2.8L D-Tronic Service Manual

SERVICE MANUAL NUMBER 22

Cleaning

1. Clean all parts with solvent.
2. Clean oil passages of old oil and sludge.
3. Put on safety glasses.
4. Dry parts with compressed air.
5. Clean varnish from piston skirts and pins with a suitable cleaning solvent. Do NOT WIRE
BRUSH ANY PART OF PISTON. Clean ring grooves. Make sure oil ring holes are clean.

Inspection

CONNECTING ROD AND PIN
1. Wash connecting rods in cleaning solvent and dry with compressed air.
2. Check for twisted or bent rods and inspect for nicks or cracks. Replace damaged
connecting rods.
3. Measure connecting rod bushing I.D. and piston pin O. D. Replace bushing if clearance
is excessive. Refer to specifications.
90-860074--1 FEBRUARY 2002
a - Ring Grooves
b - Oil Ring Holes
a - Rod Bushing I.D.
b - Piston Pin O. D.
a
b
b
a
ENGINE MECHANICAL
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Page 3A-109