IMCO Xtreme Advantage scX4 Series Service Manual

IMCO SCX SERIES INFORMATION, OPERATION & MAINTAINANCE
1. SCX & SCX4 Drives will not fit on a standard gimbal helmet, IMCO HELMET:
Warning!
#05-8025 Black or #05-8027 Silver or #05-8028 ITS Black is required.
2.
Warning!
clutch sit between neutral and in gear position.
3.
Warning!
tested with the engine running!
4. When using SCX or SCX4 drives it is necessary to have full hydraulic steering for
Danger!
your safety.
5. When tuning engine remove propeller and shift drive into forward gear!
Warning!
6. Do not run your boat with a worn or loose gimble ring or helmet, worn clevis pins, or clevis bushings.
7. Every hull is different and requires a different setup: Many different things contribute to performance:
water pickup location, cavitation plates, gear ratio, drive height, prop, weight distribution, water conditions,
weather conditions.
8. If you are installing the drive on a new application, consult the manufacture or a dealer with experience
with the hull to determine the proper drive height.
9. SCX Drive is 19 7/8" from crankshaft center line to prop shaft center line (2" shorter than standard
Bravo).
SCX4 Drive is 17 7/8" from crankshaft center line to propshaft center line (4" shorter than standard Bravo).
10. The bolt pattern is different from the SCX to the SCX4, lowers cannot be interchanged.
11. Max propeller diameter on the SCX is 16 3/4", SCX4 is 17" (always check that there
Warning!
is at least 1/2" clearance between the propeller blades and the drive case.
12. Large diameter propellers installed on a #6 prop shaft will require a torque tab on single engine boats.
13. SCX and SCX4 drives require a drive oil reservoir with a minimum capacity of 1 1/2 quarts.
14. When installing drive to gimbal or lower to upper always use anti-seize on all threads
15. When installing lower to upper, inspect all "O" rings, replace as necessary, pressure check to insure
proper seal.
16. If you do your own maintenance and repairs on your IMCO drive, you will need a service manual and
the proper tools. Service manuals and tools are available at www.imcomarine.com/cal_store.
17. Always wear proper safety equipment when operating your boat, testing or running at high speeds.
18. Inspect for: oil level in drive and reservoir, leaks, loose fasteners, worn parts.
Maximum engine idle speed is 800 RPM. Shift drive with a positive move, do not let
Do Not install propeller until the drive shift linkage has been properly installed and
Before Running!