JIMS Box 3 1208-1353 (all models of 120, 131, or 135 Alpha, Beta and EVO Mount Engines (Including Kits) User Manual
Page 6
555 Dawson Drive, Camarillo, CA 93012 Phone 805-482-6913 • Fax 805-482-7422
5
Rev I
9-12
No.1208-1353
A Division of Thiessen Products, INC
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• You may need to move the rocker shafts slightly to allow passage of the bolts through the
notch in the shaft.
• Torque the bolts to 18-22 ft-lbs (20.3 - 24.4 Nm).
• Follow the pattern shown in Fig. 2.
• Torque in 1/4-turn stages using about half the final torque the first time.
Note: To avoid contact between the pushrods and the upper pushrod covers, you may need to
shift the rocker supports toward the engine cam side. To check the clearance between
the pushrods and covers, rotate the engine until both valves are closed in the cylinder you
are checking.
• Repeat these steps to install the second rocker arm support.
STEP 3: Breather - Pre-Assembly
• Obtain the two bags containing breather assemblies with mounting screws No.17025-03A.
• Install the the breather assembly using screws provided with the assembly, gasket should face
against the support plate.
• Torque breather mounting screws to 120-156 in.lbs.
• Repeat this procedure for the remaining breather assembly.