Usage:
(1) 7S6323 Spring (one spring type):
Length under test force ... 2.219 in.(56,36 mm)
Test force ... 81-89 lbs.(36,7-40,3 kg)
Free length after test ... 2.613 in.(66,37 mm)
Outside diameter ... 1.731 in.(43,97 mm)
4L5408 Outer Spring (two spring type):
Length under test force ... 1.953 in.(49,61 mm)
Test force ... 50-55 lbs.(22,7-24,9 kg)
Free length after test ... 2.422 in.(61,52 mm)
Outside diameter ... 1.635-1.645 in.(41,53-41,78 mm)
4F5409 Inner spring (two spring type):
Length under test force ... 1.922 in.(49,82 mm)
Test force ... 27-30 lbs.(12,3-13,6 kg)
Free length after test ... 2.539 in.(59,92 mm)
Outside diameter ... 1.145 in.(29,08 mm)
(2) Diameter of valve stem:
7M7817 Inlet for Diesel and Gas ... .495-.496 in.(12,57-12,59 mm)
3N1141 Exhaust for Diesel ... .495-.496 in.(12,57-12,59 mm)
5S5323 Exhaust for Gas ... .4956-.4966 in.(12,588-12,614 mm)
Maximum permissible clearance between valve stem and guide:
Diesel ... .009 in.(0,229 mm)
(3) Minimum lip thickness (inlet):
7M7817 Diesel ... .140 in.(3,56 mm)
7M7817 Gas ... .128 in.(3,25 mm)
Minimum lip thickness (exhaust):
3N1141 Diesel ... .124 in.(3,15 mm)
5S5323 Gas ... .122 in.(3,10 mm)
(4) Valve face angle ... 291/4°
(5) Inlet valve head diameter ... 2.500-2.510 in.(63,50-63,75 mm)
Exhaust valve head diameter ... 2.345-2.355 in.(59,56-59,81 mm)