Drive Shafts Modified to Shorter Lengths
!
CAUTION
The complete modified (shortened) drive shaft has to
be ordered from the boat manufacturer that installed
the MerCruiser Power Package.
Failure to properly align shaft flanges with
matching marks made on disassembly may
cause improperly aligned drive unit and exten-
sion drive shaft U-joint centerlines resulting in a
severe vibration problem.
IMPORTANT: Dana Corporation - Spicer Regional
Drive Shaft Centers will not shorten replacement
drive shafts for dealers or consumers.
2.
As shown, attach drive shaft output flange and in-
put shaft flange exactly as marked upon disas-
sembly. Torque fasteners to 50 lb. ft. (68 N·m).
If a boat manufacturer is currently having extension
drive shafts modified, they must be modified by one
of Dana Corporation - Spicer Regional Drive Shaft
Centers to maintain MerCruiser warranty. The modi-
fied drive shaft must meet the following specifica-
tions.
a
•
•
U-joints aligned radially within 0° (± 1/2°).
U-joints greased, after welding, with Quicksilver
U-Joint and Gimbal Bearing Grease.
•
•
•
Assembly balanced to within 1.5 oz. in. (0.01
N·m) to 4500 RPM.
e
d
Tube to have .005 in. (0.127 mm) to .010 in.
(0.254
mm) interference fit with tube yoke.
Tube must be straight and round within .015 in.
(0.381
mm).
c
Installation
b
IMPORTANT: The following instructions are to be
used if ONLY the drive shaft was removed for ser-
vice. Refer to appropriate sections for installa-
tion of other components which require special
alignment.
70237
Engine End Shown (Transom End Similar)
a - Output Shaft Flange
b - Drive Shaft
c - Screw 7/16-20 x 1-1/2 In. (38 mm) Long (4 Used)
d - Nut 7/16-20 (4 Used)
1.
Grease both drive shaft universal joints with
Quicksilver U-Joint and Gimbal Bearing Grease.
e - Suitable Matching Marks Made upon Disassembly -
Aligned
!
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
MUSTBEflushwitheachotherpriorto tightening
screws or screws may come loose during
operation.
Index
90-823224--2 796
DRIVE SHAFT / PROPELLER SHAFT MODELS - 8E-5
| 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