Valve Adjustment on a 67 Cummins

Kyle from Dark Iron Diesel demonstrates how to set the valves on a 67 Cummins engine. The video covers marking the top dead center (TDC) on the harmonic balancer, adjusting intake and exhaust valves, and ensuring all adjustments meet factory specifications. Kyle emphasizes the importance of checking valve lash after rotating the engine to ensure accuracy. The tutorial concludes with a reminder to like and subscribe for more content.

What is the main task demonstrated in the video?

• Setting the valves on a 67 Cummins

• Installing a new transmission

• Replacing the engine

• Changing the oil

What tool is used to mark the harmonic balancer?

• A paint marker

• A screwdriver

• A hammer

• A wrench

Which cylinder is adjusted first in the video?

• Cylinder six

• Cylinder one

• Cylinder four

• Cylinder two

What is the correct valve lash specification for the intake valves?

• 10,000

• 20,000

• 5,000

• 15,000

What is the torque specification for the lock nut?

• 10 foot pounds

• 18 foot pounds

• 25 foot pounds

• 30 foot pounds

After adjusting cylinder one, which cylinder's exhaust valves are adjusted next?

• Cylinder three

• Cylinder six

• Cylinder five

• Cylinder two

What should be done after all valves are initially adjusted?

• Start the engine immediately

• Replace the harmonic balancer

• Recheck the valve lash after cranking the engine

• Change the oil

What is the purpose of rotating the crankshaft 360 degrees?

• To set cylinder six at top dead center

• To replace the spark plugs

• To check the oil level

• To align the timing belt

Why is it important to mark the adjusted valves?

• To identify which valves need replacement

• To ensure they are not adjusted again

• To indicate they are faulty

• To show they are new

What should be done if the valve lash loosens after cranking the engine?

• Ignore it

• Change the engine oil

• Replace the valve

• Tighten the lock nut again