SERVICE MANUAL NUMBER 23
MCM MODELS - BRAVO AND BLACKHAWK DRIVES WITH DRIVESHAFT EXTENSION
Installation
Engine Installation/Alignment
ENGINE MOUNT ADJUSTMENT WAS NOT DISTURBED DURING SERVICE
CAUTION
Center lifting eye (located on top of thermostat housing) is used for engine align-
ment only. DO NOT use to lift entire engine.
CAUTION
Engine MUSTbeliftedwithaliftingarmordamagetoenginecomponentswilloccur.
DO NOT allow lifting sling to hook or compress engine components or damage will
occur.
1.
Attach a suitable sling to lifting eyes on engine and adjust so that engine is level when
suspended. (Refer to “Removal” section for location of lifting eyes.)
2.
3.
4.
Lift engine into approximate position (in boat), using an overhead hoist.
Set engine on stringers.
Grease drive shaft universal joints with Quicksilver U-Joint and Gimbal Bearing Grease.
CAUTION
When attaching shaft in next step, BE SURE that the pilot on drive shaft flanges are
engaged in input shaft and output shaft flanges. Flanges MUST BE flush to each
other prior to tightening screws or screws may come loose during operation.
CAUTION
Failure to align shaft flanges with matching marks made on disassembly may cause
improperly aligned drive unit and extension drive shaft U-joint centerlines resulting
in a severe vibration problem.
5.
As shown, attach engine output flange to drive shaft flange exactly as marked during
disassembly. Torque fasteners to 50 lb-ft (68 Nm).
a
b
e
d
c
70237
Engine End Shown
a - Output Shaft Flange
b - Drive Shaft
c - Bolt 7/16-20 x 1-1/2 In. (38 mm) Long (4 Used)
d - Nut 7/16-20 (4 Used)
e - Matching Marks Made Upon Disassembly - Aligned
Index
90-861326--1
MARCH 1999
Page 2B-5
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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