Finding TDC

[manyhp]

How do I find tdc on my '04 Cummins? Thanks in advance.

 

[AllianceDiesel]

There is a mark on the vibration dampner. Put it strait up. Then the only way to really tell is if #1 rockers are loose

 

[HHhuntitall]

There's also a pin pressed into the front of the crank. It's between two of the crank bolts, and will be about flush with the damper. Might be easier to see from below the truck, then check the valves.... not all the dampers are marked on the earlier trucks.