Detroit Diesel 4000 Series, Service Manual, Page: 67 / 2706

SERIES 4000 12/16V SERVICE MANUAL
Category B — Load required at or near yield. Process controlled by special torque equipment or process. Verification — to minimum
torque value.
Category C — Load required sensitive to both low and high values. Process controlled by special torque equipment or process.
Verification — to given range of torque values.
Category D — Load at yield. Process controlled by special torque equipment or process. Fasteners require lubricant 7Y2 or
equivalent. Verification — to minimum torque value.
Category E — Load, both high and low critical. Process controlled by special torque equipment. Verification — to equipment capability.
Category F — Joint sensitive to torque sequence. See engine build instructions.
Category G — Gasket eliminator used as a sealant. Joint sensitive to bolt removal.
Category H — Critical joint. Torque plus angle required.
Table 5 Fastener Torque Specifications
NOTE:
Torque specification does not apply to hot engines. Re-check of torque at room
temperature to be not less than 90 percent of minimum assembly values.
All information subject to change without notice.
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