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Torque Specs

Engine Bolt-Ons

Engine Mounts:
  • Front Mount Bolt--44 (59)
  • Front Mount Nut--33 (45)
  • Braket-to-Block Bolt--38 (51)
  • Through Bolt--70 (95)
  • Through Bolt Nut--50 (68)
  • Bellhousing To Engine Bolts 30 (40)
  • Torque Convertor-To-Flexplate Bolts--46 (63)
Cylinder Head:
1988-1995:
  • First--20 (25)
  • Second--50 (68)
  • Last--1/4 Turn or 90* More
1996-1998:
  • First--20 (25)
  • Second--55 (75)
  • Last--1/4 Turn or 90* More
Exhaust Manifold:
  • Exhaust Manifold Bolts--26 (35)
Flywheel & Ring Gear:
  • All Models--65 (90)
Fuel System:
  • IP Nuts--31 (42)
  • IP Bolts--17 (23)
  • IP to Injector Line--20 (25)
  • IP Feed Line--20 (25)
  • Fuel Filter Bolts--31 (42)
  • Injectors--50 (70)
Glow Plug System:
  • Glow Plugs--17 (23)
  • Glow Plug Controller--25 (35)
Intake Manifold:
  • 1988-1995 Vehicles--32 (42)
  • 1996-1998 Vehicles--31 (42)
  • Fuel Filter Bolts--31 (42)
Oil Pan:
  • Rear Two Bolts--17 (23)
  • All Others--89 in. Lbs (10)
Timing Chain Cover:
  • Cover To Block--30-33 (40-45)
  • Baffle--33 (45)
Thermostat Housing & Crossover:
  • 1988-1991---35 (47)
  • 1992-1998---31 (42)
Turbo:
  • To Exhaust Manifold--43 (58)
  • Oil Return Tube--19 (26)
  • Oil Feed Tube--13 (17)
  • Long Brace Bolt--37 (50)
  • Long Brace Nut--26 (34)
  • Short Brace Bolts--19 (25)
Valve Cover:
  • Valve Cover Bolts--16 (22)
Water Pump:
  • To Plate--31 (42)
  • Three Bottom Right to Engine--31 (42)
  • All Other to Engine--17 (23)
 
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Alberta, -are you absolutely sure the 12mm mains aren't 2-pass 55lb/ft then 90 degrees?

I seem to have some conflicting information, -just want to be sure.

BTW, nice work man!
 
Just looked in a GM service manual to check, and You are right. I missed the last row. :banghead:
Typed most of it up last night at midnight. I quess I should proofread better

NOTE: Alberta Redneck edited/proofread everything and made the changes required. The information that you now see is correct. --JiFaire
 
Last edited by a moderator:
Engine Internals

Connecting Rod Nuts--48 (65)
Bellhousing Bolts--30 (40)
Coolant Drain Plug--18 (25)

Camshaft:
  • Gear Bolt--125 (171)
  • Thrust Bearing Bolts--17 (23)
Crankshaft:
  • Bearing Cap 12mm Inner Bolts:
    • Make Two Passes--55 (75)
    • Final Pass--90* more
  • Bearing Cap 12mm Outer Bolts:
    • Make Two Passes--48 (65)
    • Final Pass--90* more
  • Bearing Cap 10mm Outer Bolts:
    • Single Pass--30 (40)
  • Pulley Bolts--37 (50)
  • CKP Sensor--17 (23)
  • Harmonic Balancer Bolt--200 (270)
Oil System:
  • Cooler Line Fittings--42 (57)
  • Fill Neck Nuts--17 (23)
  • Filter Adapter Bolt--47 (65)
  • Gallery Plugs--25 (34)
  • Oil Pan:
    • Two Rear Bolts--17 (23)
    • All Others--89 in.lbs. (10)
    • Drain Plug--18 (25)
  • Oil Pump:
    • Bolt--65 (90)
    • Cover Screws--12 (16)
    • Driver Clamp Bolt--31 (42)
Valve Cover/Rocker Arm/Hyd Lifters:
  • Cover Bolts--20 (27)
  • Shaft Bolts--40 (55)
  • Guide Plate Bolts--18 (26)
Cylinder Head:
  • First Pass--20 (25)
  • Second Pass--55 (75)
  • Final Pass--90* More
Intake Manifold:
  • Lower Bolts & Studs--31 (42)
  • Center Bolts--17 (23)
  • Upper Intake--17 (23)
 
Manual Transmission

Shifter Housing--89 in. lbs. (10)
NV4500 Trans to Housing--74 (100)

Clutch Bolts:
  • 1988-1994---32 (43)
  • 1995-1998---25 (34)
Clutch Housing:
  • 1988-1990:
    • R/V---40 (54)
    • C/K---55 (75)
  • 1991---31 (43)
  • 1992-1994---29 (39)
  • 1995-1998---23 (31)
Slave Cylinder:
  • 1988-1995---13 (18)
  • 1996-1998---71 in.lbs. (8)
 
Automatic Transmission

Trans to Engine--35 (47)
Support Brace--35 (47)

Converter Bolts:
  • 1988-1995---50 (68)
  • 1996-1998---46 (63)
Crossmember Retaining Bolts:
  • 1988-1990---35 (47)
  • 1991-1998---56 (77)

88-94 T-case to Trans.--24 (32)
88-94 T-case to Frame--35 (47)
95-98 Adapt to T-case--33 (45)
95-98 Adapt to Trans.--33 (45)
Shift Linkage 4L80E--20 (30)
 
If a Mod could delete post 3,4,5, & 6, that would be great. I fixed them up, made all the editing the same, and combined what was missed. Thx

-- Done. The incorrect information is removed. -JiFaire
 
Last edited by a moderator:
I'm looking for the head torque spec for 6.5 turbo diesel with studs and nuts. Is there a certain way to torque these and do I add washers? Your help is appreciated.
 
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