MIE MODELS - VELVET DRIVE TRANSMISSION
SERVICE MANUAL NUMBER 23
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
alignment. This is necessary to allow for final engine alignment.
4.
Lift engine into boat and position on engine bed so that transmission output flange and
propeller shaft coupler are visibly aligned. No gap should be seen between coupling
faces when butted together. Adjust engine bed height, if necessary, to obtain proper
alignment. DO NOT use mount adjustments to adjust engine position at this time.
5.
6.
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 lag
bolts/screws 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
bearings, 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
centerlines are aligned and coupling faces are parallel within .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 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
b
72595
a - Up
b - Down
c - Port
d - Starboard
IIndexndex
Page 2C-6
90-861326--1 MARCH 1999
| 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 |
(1 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...