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Mercury D4.2L D-Tronic Service Manual

Mercury D4.2L D-Tronic
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ENGINE MECHANICAL
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 3A-113
Assembly
1. Coat inside of connecting rod bushing, piston pin bore, and piston pin with SAE 30W
engine oil.
2. Assemble piston to connecting rod with the combustion chamber recess aligned with
rod numbers.
70296
a
b
a-Combustion Chamber Recess
b-Rod Numbers
3. Insert piston pin and install snap ring.
4. Clamp in a soft jawed vise as shown.
70290
NOTE: Always install rings with ring markings facing the top of piston.
5. Install spring in lower piston groove.
6. Install oil control ring.
7. Squeeze ring into groove to seat spring and check for binding.

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Mercury D4.2L D-Tronic Specifications

General IconGeneral
BrandMercury
ModelD4.2L D-Tronic
CategoryEngine
LanguageEnglish

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