Usage:
This unit is for engines with 8° before TC (top center) static timing.
NOTE: This unit moves forward (advances) the timing 11° from low idle to full load rpm.
(1) Diameter of shaft ... 4.0000 ± .0005 in.(101.600 ± 0.013 mm)
Diameter of bore in pump housing ... 4.0040 ± .0005 in.(101.702 ± 0.013 mm)
Bearing clearance (new) ... .003 to .005 in.(0.08 to 0.13 mm)
(2) Torque for plug ... 75 ± 10 lb. ft.(100 ± 14 N·m)
(3) 7S8790 Spring (large):
Length under test force ... 2.15 in.(54.6 mm)
Test force ... 5.40 ± .27 lb.(23.8 ± 1.2 N)
Free length after test ... 2.80 in.(71.1 mm)
Outside diameter ... .940 in.(23.88 mm)
(4) 6N3578 Spring (small):
Length under test force ... 1.451 in.(36.86 mm)
Test force ... .55 ± .04 lb.(2.5 ± 0.2 N)
Free length after test ... 1.59 in.(40.4 mm)
Outside diameter ... .528 in.(13.41 mm)
(4) 2P9585 Spring (small):
Length under test force ... 1.422 in.(36.12 mm)
Test force ... .895 ± .072 lb.(3.97 ± 0.32 N)
Free length after test ... 1.653 in.(41.99 mm)
Outside diameter ... .528 in.(13.41 mm)
(5) Distance between bottom face of nut and piston when 6N3578 Spring is installed ... 1.914 ± .015 in.(48.62 ± 0.38 mm)
(5) Distance between bottom face of nut and piston when 2P9585 Spring is installed ... 1.903 ± .010 in.(48.34 ± 0.25 mm)
(6) Distance between top face of nut and center of pin hole ... .156 ± .010 in.(3.96 ± 0.25 mm)
(7) End clearance of the shaft (new) ... .003 to .007 in.(0.08 to 0.18 mm)
Torque for gear retainer bolts ... 75 ± 10 lb.ft.(100 ± 14 N·m)