Valve job question

[Dead pirate]

Exhaust side valve 1st. Cylinder.
After loosening the retaining screw i had a difficult time turning the adjusting screw. I turned quite a bit until it loosened up but couldnt set a gap. It looks like it is turned out too far.
I turned it over for a minute or two getting diesel to the injectors. It really sounded nice. But i didn't start it.
I didn't see much travel in the valve. If i start it and that cylinder doesn't exhaust what could happen ?

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[Dead pirate]

Its a 5.9 cummins 12 valve by the way

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[Dead pirate]

So it's a bent push rod. Anyone know a good mechanic in chillicothe ohio? Or even a decent tow?

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[Dead pirate]

I can't believe all the bad luck im having with this thing. I got the rod straight and it works now, but It doesn't sound right.

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[Njsurf73]

The problem, and I am far from a mechanic, is something caused the bent rod. Timing? Wear? Need to figure that out before you do anything else. If you can limp it to a mechanic, that would be a good start.

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[Dead pirate]

Thanks. Timing on a 5.9? Valves are not my speciality. It runs tho. Not well but it runs

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[Njsurf73]

Timing is in the fuel system on diesels. But valves are actuated by the cam. So fuel timing causing detonation? I am really sketchy on diesel engines. If the lifter isn't perfectly straight your probably not seating the valve all the way. If it isn't already damaged, running it is going to cause the valve seat to wear. If it wears too much, it could be the difference between a new push rod or a valve job, or even new heads.
The valve lash could have been out of spec to cause a bent push rod.

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[Njsurf73]

Sorry, I am just throwing whatever I have gleaned out there.

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[Dead pirate]

This is where I'm at? Without pulling the head I'm not sure how to tell

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[Njsurf73]

You can check the rest of the valves for lash. I don't know if you can change 1 push rod. The lifter should be checked too.


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[Trailer2]

Did you adjust the valve with the cylinder on tdc.

[Njsurf73]

Originally Posted by Trailer2

Did you adjust the valve with the cylinder on tdc.

That's a good point. You have to bar the motor over to tdc to check lash and adjust.
You would have to Google it, but you can adjust 3 cylinders at a time.
Your harmonic balancer may have tdc marked on it.

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[Dead pirate]

Originally Posted by Njsurf73

That's a good point. You have to bar the motor over to tdc to check lash and adjust.
You would have to Google it, but you can adjust 3 cylinders at a time.
Your harmonic balancer may have tdc marked on it.

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I understand that part and did it correctly. Thanks tho

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[Njsurf73]

It was just a shot. Was hoping that was a magic fix.

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