SERVICE MANUAL NUMBER 24
MIE MODELS
2.
Attach a suitable sling to lifting eyes on engine. Refer to “Removal” in this section for
location of lifting eyes.
IMPORTANT: Engine bed must position engine so that a minimum of 1/4 in. (6 mm)
up-and-down adjustment still exists on all four mounts after performing final align-
ment. This is necessary to allow for future engine alignment.
3.
Lift engine into boat and position on engine bed so that transmission output flange and
propeller shaft coupler are visibly aligned (no gap can be seen between coupling faces
when butted together). Adjust engine bed height, if necessary, to obtain proper align-
ment. DO NOT use mount adjustments to adjust engine position at this time.
4.
5.
Check all four mounts to ensure that they are still positioned properly, then fasten
mounts to engine bed with appropriate bolts or lag screws and hardware. Tighten
securely.
Disconnect and remove sling. Proceed to “Engine Final Alignment” section following.
Engine Final Alignment
CAUTION
To avoid vibration, noise and damage to transmission output shaft oil seal and bear-
ings, engine must be properly aligned.
IMPORTANT: Engine alignment MUST BE RECHECKED with boat in the water, fuel
tanks filled and with a normal load on board.
Engine must be aligned so that transmission output flange and propeller shaft coupler cent-
erlines are aligned and coupling faces are parallel within 0.003 in. (0.07 mm). This applies
to installations with solid couplings, as well as flexible couplings.
1.
Check mating surfaces on transmission output flange and propeller shaft coupler faces
to make sure they are clean and flat.
2.
Center propeller shaft in shaft log as follows:
a. Push down and then lift shaft as far as it will move. Then place shaft in the middle
of the movement.
b. Move shaft to port and then to starboard as far as shaft will move. Then place shaft
in the middle of the movement.
c. With shaft in center of shaft log, as determined by above procedures “a” and “b,”
align engine to shaft.
a
d
c
72595
b
a- Up
b- Down
c- Port
d- Starboard
90-861327--1
OCTOBER 1999
Page 2B-7
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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