Usage:
Diameter of shaft (new) ... .9745 ±.0005 in.(24.752 ± 0.013 mm)
(2) Put 2P2506 Thread Lubricant on the threads of all bolts that hold rocker arm shafts and tighten the bolts in the step sequence that follows:
Step 1. Tighten bolts from 1 to 4 in number sequence to ... 200 ± 20 lb.ft.(270 ± 25 N·m)
Step 2. Tighten bolts from 1 to 4 in number sequence to ... 330 ± 15 lb.ft.(447 ± 20 N·m)
Step 3. Tighten bolts from 1 to 4 in number sequence to ... 330 ± 15 lb.ft. (447 ± 20 N·m)
(3) Torque for locknut for valve adjustment screw ... 22 ± 3 lb.ft.(30 ± 4 N·m)
(4) Torque for locknut for bridge adjustment screw ... 22 ± 3 lb.ft.(30 ± 4 N·m)
(5) Clearance for valves:
Intake valves ... .015 in.(0.38 mm)
Exhaust valves ... .030 in.(0.76 mm)
(6)
Height to top of dowel ... 2.10 ±.02 in.(53.3 ± 0.5 mm)
(7) Diameter of dowel (new) ... .4334 ± .0001 in.(11.008 ± 0.003 mm)
Bore in bridge for dowel (new) ... .438 ± .002 in.(11.13 ± 0.05 mm)
Bore in head for dowel ... .4318 ±.0008 in.(10.968 ± 0.020 mm)
(8) Diameter of valve lifter (new) ... 1.09825 ±.00050 in.(27.8956 ± 0.0127 mm)
Bore in block for valve lifter (new) ... 1.10050 ± .00075 in.(27.9527 ± 0.0190 mm)
(9) Guide springs must not be used again. Always install new guide springs.
(10) 2N7229 Spring:
Length under test force ... 2.92 in. (74.2 mm)
Test force ... 10 to 12 lb.(45 to 53 N)
Free length after test ... 4.50 in.(114.3 mm)
Outside diameter ... 1.17 in.(29.7 mm)
(11) Clearance for rocker arms (both ends) ... .012 to .055 in.(0.30 to 1.40 mm)
(12) 2N7228 Washer. Use as needed to get clearance (11).
VALVE ROCKER ARMS TIGHTEN SEQUENCE
