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Mercury MerCruiser MCM 7.4L MPI User Manual

Mercury MerCruiser MCM 7.4L MPI
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MIE MODELS - VELVET DRIVE TRANSMISSION SERVICE MANUAL NUMBER 23
Page 2C-4 90-861326--1 MARCH 1999
2. Remove front and rear engine mounting bolts. Retain hardware.
b
72638
a
a
All Engines
a-Bolts Or Lag Screws (With Washers)
b-Slot Forward (If So Designed)
3. Carefully remove engine.
Installation
Engine Installation and Initial Alignment
1. Follow instructions “a” or “b”:
a. Engine mount(s) or adjustment WAS NOT DISTURBED
during engine service:
Proceed to following Step 2.
b. Engine mount(s) or adjustment WAS DISTURBED during engine service:
IMPORTANT: Engine mounts must be adjusted, as explained in the following, to
center mount adjustment and establish a uniform height on all mounts.
2. Ensure that all mounts are:
a. In the center of their up and down adjustment.
b. Mounting hole, with a slot, is forward.
c. Large diameter of mount trunnion extended as shown.
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Index
Index

Table of Contents

Questions and Answers:

Mercury MerCruiser MCM 7.4L MPI Specifications

General IconGeneral
Engine TypeV8
Bore4.25 in (108 mm)
Compression Ratio8.6:1
Ignition SystemElectronic Ignition
Alternator65 Amp
Displacement7.4L (454 cu in)
Fuel SystemMulti-Port Fuel Injection (MPI)
Horsepower310 HP
Torque450 lb-ft
Cooling SystemClosed Cooling
Fuel Requirement87 octane (minimum)
Stroke4.00 in (101.6 mm)

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