Cummins B-Series Engine Torque Specifications

[BobS]

Here are some of the needed torque values for the 4BT & 6BT in FT/LB's unless otherwise indicated:

Bracket, rear, engine lifting ---------------------57
Connecting rod---------------------------------26, then 52, then 74
Crankshaft damper & pulley---------------------92
Exhaust manifold to head-----------------------32
Flywheel adapter housing, Aluminum-------------44
Flywheel adapter housing, Iron------------------57
Flywheel housing cover-------------------------18
Flywheel to crankshaft-------------------------101
Gear housing timing cover-----------------------18
Head Bolts.............See below;
Injector retaining nut---------------------------44
Injector fuel drain banjo screw (in injector)-------72 in-lb
Intake manifold cover---------------------------18
Intake jacket water aftercooler to head----------18
Main Bearing------------------------------------44, then 88, then 129
Oil Pan------------------------------------------18
Rear seal mounting cover------------------------48 INCH/LBS
Rocker arm support------------------------------18
Transfer pump mounting--------------------------18
Turbo to manifold--------------------------------33
Valve cover-------------------------------------18
VE Bosch injection pump:
Solenoid, fuel shut off---------------------32
Solenoid, KSB-----------------------------16
TORQUE CONVERSION NOTE: 12 INCH POUNDS = 1 FOOT POUND

Cylinder Head Bolt Torque:
[url="http://www.4shared.com/file/209060972/4e55f481/_98T2-13__B_Cylinder_Head_Caps.html"]Cylinder Head Capscrew Torque Manual[/url] (722 KB)
http://www.4btswaps.com/forum/showthread.php?t=469 and updated at
http://www.4btswaps.com/forum/showthread.php?t=1157

Clutch Cover AKA Pressure Plate:
Tighten cover bolts a few threads at a time. Cover bolts must be tightened evenly and to specified torque to avoid distorting cover.

Tighten 5/16" diameter bolts to 17 ft/lb [23 N.m]
Tighten 3/8" diameter bolts to 30 ft/lb [41 N.m]
REF: 1992 Dodge RWD D&W 150-350 truck service manual pg. 6-12 published by Chrysler Corp.

Note: The flywheel adapter housing is what we commonly refer to as a Chevy, Dodge, Ford, or SAE adapter.