Installation During Engine Reassembly - Mercury MerCruiser D2.8L D-Tronic Service Manual

SERVICE MANUAL NUMBER 22

Installation During Engine Reassembly

1. Temporarily install crankshaft pulley, if removed previously.
2. Attach Crankshaft Tool 91-814827 if necessary.
To avoid severe engine damage the engine MUST BE set on cylinder number 1
COMPRESSION STROKE at Top Dead Center (TDC) before proceeding.
IMPORTANT: If crankshaft position was disturbed after assembly (rotated), it may be
necessary to slowly rotate the crankshaft, in the direction of rotation, numerous
revolutions to align the crankshaft gear, idler gear, and camshaft gear alignment
marks. Refer to SECTION 3A - Camshaft, and verify alignment to establish cylinder
number 1 Top Dead Center on compression stroke in the following steps.
3. Ensure cylinder number 1 piston is at TDC of its compression stroke and timing marks
are aligned.
4. Attach the graduated disc 91-801333500 to crankshaft with zero positioned as shown.
NOTE: Use the graduated disc adapter plate if crankshaft vibration damper is installed.
Typical Engine
90-860074--1 FEBRUARY 2002
a
78198
c
a - Adaptor Plate (To Damper, If Installed)
b - Bolts (3)
c - Graduated Disc
d - Crankshaft Tool
CAUTION
d
b
INJECTION PUMP
70485
70419
Page 5D-19