51
Ignition
portion of this manual.
22. Install the water pump outlet pipe (apply Hi-Temp RTV silicon gasket maker
to the threads before assembly) before installing the clutch and rotate to a
vertical position with the engine resting on bench
23. Install the CFD.
24. Install the clutch per
Clutch Installation
section in this manual.
25. Install the coolant drain plug with copper washer (11 ft-lb, 15 Nm).
26. Make sure that the exhaust spacer is on the cylinder (53 in-lb, 6 Nm).
27. Install the spark plug with a fresh gasket (to apply the proper torque to the
spark plug when inserting, one must first screw the spark plug in until the
metal gasket ring causes resistance and then turn another 1/8 to ¼ turn).
Clutch
New for 2014, Cobra has again improved the clutch design. The new washer
stacks are similar but of a different more heat resistant material, the shoulder
bolts have been replaced with a patent pending sleeve bolt assembly, and the
shoes and basket have been modified to improve the oil flow though.
The sleeve bolts of the 5GX provide a low uniform stress, minimal heat transfer,
and allow channels for flushing the clutch fibers out of the washer stacks allowing
a long time between part replacement provided you operate with 10 oz of clean
Clutch Milk.
As before, the new washer stacks are being double sorted at the factory. They
are first sorted by measured height. Secondly, each stack with bolt is sorted by
measured engagement force. The stacks in each set of three will measure within
0.05mm (0.002”).
There are many variables in an automatic centrifugal clutch. These variables are
set to world class standards from the factory but will change over time as the
components wear, relax, and just plain get used.
Please see the Tuning Clutch portion of this manual for more helpful info.
Tools recommended for clutch service:
•
Universal clutch puller- a universal puller that pulls the clutch, main drive gear
and rotor. (Part # MCMUTL70).
•
5mm T-handle
•
T25 Torx
•
Accurate torque wrench in the range of 16 Nm (12 ft-lb, 144 in-lb).
•
Clutch nut removal tool (ECMU0078) & piston stop (MCMUTL03).
•
Cobra 3 Shoe Clutch Milk
(Part # MCMUGF32).
CLUTCH REMOVAL:
1. Drain the engine transmission oil and remove the clutch cover.
