Thursday, April 19, 2012

Cummins 24 Valve Turbo Diesel Torquing Head bolts

Torquing Head Bolts on a Cummins 24 Valve Turbo Diesel Engine.
This is a video I posted years ago on Youtube. There was a lot of noise in the background and I just grabbed my torque wrench and went through the sequence. I apologize for the poor video quality but I get my point across :)

The Torque Pattern
Start from the middle of the head in a circular pattern outwards. Torque to 59 ft.lbs then 77 ft. lbs. check again at 77 ft.lbs. then finally another 90 degrees. Coat threads lightly with engine oil. This is a universal torque pattern that makes sense to apply to any type of diesel or gas engine.

Starting from the middle and moving outwards so the head is fastened down evenly. Cummins uses a system called torque and turn which accounts for the extra 90 degrees to finish off. The Cummins 24 valve turbo diesel (5.9 Liter or 359 cubic inches) is one of the most dependable engines in our fleet.

 I must add that this diesel is an electronic model known as the ISB which stands for Interact System B.

Below are some extra Specs:
- Fuel System = Direct Injection
- 1998.5 - 2002: Electronically controlled Bosch VP44 rotary injection pump.
- 2003-2007: Bosch high pressure common rail injection.
- 235 - 325 HP @ 2,900 RPM
-  460 - 610 lb-ft @ 1,600 RPM


Please Comment and Share!

1 comment :

Corey said...

DO you recommend a re-torque after some period of running?