!
CAUTION
! CAUTION
Engine MUST BE aligned correctly to achieve
proper engine operation and to prevent damage
to drive shaft. If drive shaft is run at an incorrect
angle, damage to universal joint bearings may re-
sult.
Failure to properly position output shaft flange
(as described following) may result in bearing
damage.
8.
Relieve hoist tension from engine, then slide en-
gine fore or aft as needed to obtain 1/4 in. (6.4
mm) between flange shoulder and extension
shaft housing bearing, as shown.
6.
Position base of protractor on drive shaft; then
raise or lower engine (as boat construction per-
mits) until indicator needle is 1 degree to 3 de-
grees on either side of reading taken in Step 1.
Record this reading in the following chart for later
use.
c
b
c
a
b
a
70238
72591
a - Drive Shaft
b - Protractor
c - Output Shaft Flange
a - Flange Shoulder
b - Bearing
c - 1/4 In. (6 mm)
Reading from Step 6. __________ degrees to the
9.
Position engine for correct engine and drive shaft
lateral alignment as follows:
_________
side of reference mark.
a. Measure the length of (a) and (b) to the cen-
ters of bolt holes. They MUST BE EQUAL. If
they are not equal, slide the aft and forward
ends of the engine equal amounts in oppo-
site directions to obtain equal lengths for (a)
and (b).
7.
Adjust stringer height so that the stringers just
contact the engine mount bases.
a
b
70246
These Dimensions Must Be Equal
b. Recheck Step 8. If Step 8 is not as specified,
adjust and recheck Step 9a. Continue this
process until both Steps 8 and 9a are as spe-
cified.
Index
90-823224--2 796
BRAVO AND BLACKHAWK DRIVES WITH DRIVESHAFT EXTENSIONS - 2B-7
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you