[Zdog92]

I don’t think this is normal. It’s extended when all others are flat. First time doing injectors so don’t hate

 

[THE MEGACAB]

Yea because it's the way the engine stopped and it's putting pressure on the push rod to open the valves.

 

[elephantrider]

are you talking about the rocker arms all not being at the same height?

 

[Zdog92]

Yea because it's the way the engine stopped and it's putting pressure on the push rod to open the valves.

Thanks. Just wasn’t sure if thats something to worry about.

 

[Zdog92]

are you talking about the rocker arms all not being at the same height?

Yea the 3rd one being up and the rest being flat

 

[zwilmes]

If you're replacing injectors you're going to be removing those exhaust rockers to get to the hold down bolts. Best read up on valve lash adjustment and how those arms move up and down, bc you'll need to understand that to set the valve lash when you put the rockers back on, you should always check valve lash anytime you have those off, and should be checked anyways if not done in the last 100,000 miles or so.

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[rghavana]

Firing order 1,5,3,6,2,4 What was exhaust at?
Good question, very critical with interference motor valves/rockers are right, should always triple check valve/rockers are okay and be very careful on #6 cylinder see alot issues with it.
Double check trunnion in rockers not to damaged, perform adjustment then lasts step spin engine by hand before starting, recheck all good
For valve adjustment I set crank to TDC then make better mark on damper before remove rockers.
rotate crankshaft to align damper TDC mark to 12:00 o’clock position.
(a) If both number one cylinder rocker levers are loose, continue to next step.
(b) If both number one cylinder rocker levers are not loose, rotate crankshaft 360 degrees.
With the engine in this position, valve lash can be measured with feeler gauge at the following rocker arms:
INTAKE 1–2–4 / EXHAUST 1–3–5.
Tightening the lock nut to 24 Nm (18 ft. lbs.) and re-check the valve lash.
Using the crankshaft barring tool, rotate the crankshaft one revolution (360°) to align the
damper TDC mark to the 12 o’clock position. With the engine in this position, valve lash can be measured at the remaining rocker arms:
INTAKE3–5–6 / EXHAUST 2–4–6. Use the same method as above for determining whether adjustment is necessary,
and adjust those that are found to be outside of the limits
Cold engine below 70 F
INTAKE 0.254 mm (0.010 in.)
EXHAUST 0.508 mm (0.020 in.)

 

[Zdog92]

Firing order 1,5,3,6,2,4 What was exhaust at?
Good question, very critical with interference motor valves/rockers are right, should always triple check valve/rockers are okay and be very careful on #6 cylinder see alot issues with it.
Double check trunnion in rockers not to damaged, perform adjustment then lasts step spin engine by hand before starting, recheck all good
For valve adjustment I set crank to TDC then make better mark on damper before remove rockers.
rotate crankshaft to align damper TDC mark to 12:00 o’clock position.
(a) If both number one cylinder rocker levers are loose, continue to next step.
(b) If both number one cylinder rocker levers are not loose, rotate crankshaft 360 degrees.
With the engine in this position, valve lash can be measured with feeler gauge at the following rocker arms:
INTAKE 1–2–4 / EXHAUST 1–3–5.
Tightening the lock nut to 24 Nm (18 ft. lbs.) and re-check the valve lash.
Using the crankshaft barring tool, rotate the crankshaft one revolution (360°) to align the
damper TDC mark to the 12 o’clock position. With the engine in this position, valve lash can be measured at the remaining rocker arms:
INTAKE3–5–6 / EXHAUST 2–4–6. Use the same method as above for determining whether adjustment is necessary,
and adjust those that are found to be outside of the limits
Cold engine below 70 F
INTAKE 0.254 mm (0.010 in.)
EXHAUST 0.508 mm (0.020 in.)

Thanks guys

 

[StealthDiesel]

Zdog92, I hope you are following the Dodge/Cummins service manual for injector replacement and valve lash adjustment.

Here is a doc on this procedure:

http://www.cumminsforum.com/forum/a...cedure-cummins-injector-install-procedure.pdf

You absolutely have to set valve lash when doing this.

Of course, with the injectors removed, now is the perfect time to install headstuds and valvesprings if you are planning for more power down the road.