CYLINDER ASSEMBLY REPLACEMENT
Before removing cylinder assemblies, check the breaking torque of all
cylinder base nuts attaching each cylinder assembly to the crankcase.
This check is necessary to determine whether cylinder mounting studs
have stretched. All stretched studs must be replaced.
There are three different base nut wrenches. Cylinder base nut (box)
wrench (1) (item 32, WP 0176) can be used with a torque wrench with
no compensation of the torque wrench reading because the input and
output of the wrench is aligned with the fastener to be tightened. (Not
Torque readings must be calculated when base nut wrenches (torque
wrench adapters) (2, 3) (items 4 and 5, WP 0176) are used except
when used as in example A.
Calculations must be made to compensate for the offset of the torque
wrench to the fastener being tightened as in examples B and C.
Use the wrench that gives the best fit for each cylinder base nut.
Desired Torque Multiplied by Torque Wrench Length (a)
Calculated Torque =
Torque Wrench Length (a) Added to Effective Extension Length (b)
Example A: No Calculation Necessary
a = Torque Wrench Length
b = Effective Extension Length
WP 0133 00-2