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Mercury MerCruiser MCM 7.4L MPI User Manual

Mercury MerCruiser MCM 7.4L MPI
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VELVET DRIVE 5000A DOWN ANGLE TRANSMISSION
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 8B-19
8. Connect and adjust shift cable(s).
IMPORTANT: Velvet Drive Transmission Warranty is jeopardized if the shift lever pop-
pet ball or spring is permanently removed, if the shift lever is repositioned or changed
in any manner, or if remote control and shift cable do not position shift lever exactly
as shown.
73248
a
b
c
d
e
a-Transmission Shift Lever
b-Poppet Ball Must Be Centered In This Detent Hole When Left-hand Propeller
Shaft Rotation Is Desired
c-Poppet Ball Must Be Centered In This Detent Hole When Right-hand Propeller
Shaft Rotation Is Desired
d-Poppet Ball Must Be Centered In This Detent Hole For Neutral Position
e-Install Shift Lever Stud In This Hole When Using Quicksilver Shift Cables
9. Refer to SECTION 2C and check engine final alignment as outlined.
10. After final engine and coupler alignment has been properly set (with boat in the water),
connect propeller shaft coupler to transmission output flange. Attach couplers together
with bolts, lockwashers and nuts. Torque to 50 lb. ft. (68 N·m).
IMPORTANT: Be certain to torque trunnion clamping fasteners on engine mounts
(port and starboard) which were loosened during removal.
IMPORTANT: All coupler bolts must be SAE Grade 8 (Metric Grade 10.9) or better, with
a shoulder (grip length) long enough to pass through the face mating plane of cou-
plers.
11. If previously removed, install transmission fluid cooler and hoses. Torque hose fittings
at cooler and transmission housing to 25 lb. ft. (34 N·m).
12. Refill transmission with specified fluid. Refer to “Filling Transmission.”
13. Connect battery negative cable. Tighten clamp securely.
14. Check for leaks and check fluid level after first engine start-up.
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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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