Fuel Injection Pump Installation; Installation With Engine Assembled - Mercury MerCruiser D2.8L D-Tronic Service Manual

INJECTION PUMP

Fuel Injection Pump Installation

Installation With Engine Assembled

IMPORTANT: If engine has been disturbed, or must be rotated before installing
injection pump take care not to wedge pump gear in gear housing while turning
crankshaft.
1. Ensure cylinder number 1 piston is at top dead center (TDC) of its compression stroke
and timing marks are aligned.
1. Ensure pump gear is held in the same position as when pump was removed. This should
be cylinder number 1 TDC.
2. Rotate shaft to align keyway with cylinder number 1 injector port.
NOTE: To rotate shaft, temporarily install original shaft nut and a suitable jam nut. Do NOT
damage pump shaft threads with improper nuts or overtightening.
Typical
3. Remove any pump backlash by rotating shaft COUNTERCLOCKWISE (when facing
the pump) until resistance is felt.
Typical
Page 5D-16
a - Shaft Keyway
b
a - Shaft - Rotate COUNTERCLOCKWISE
b - Keyway at 11 O'clock
SERVICE MANUAL NUMBER 22
a
b
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a
90-860074--1 FEBRUARY 2002
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