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Truck Repair/1985 Kenworth with Cummings 350 engine


The serial number on engine is gone. What is the valve lash set on and what sequence.

Adjust crossheads by backing off 1 turn then tighten down til it touches valve stem then tighten locknut.
adjust intake to .011" adjust exhaust to .023"
injector tighten adjuster until clearence is removed then tighten a additional turn. loosen adjuster screw until injector spring washer touches top stop screw. then using torque wrench tighten adjuster to 5-6 in" lbs.

Here is a chart for the order

Pulley    Injector   Valves
A          3          5
B          6          3
C          2          6
A          4          2
B          1          4
C          5          1

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Jeff Drumm


I Can answer any question pertaining to semi trucks and trailers. Have no experience in the automotive field so not able to help in that area.


My experiences in Semi Trucks is. I own my own truck and i presntly maintain a 80 truck fleet. Can handle any questions pertaining to a truck have tore apart and rebuilt every aspect on them. Fleet I deal with is Mainly Volvo trucks and a handful of freightliners. Work on automated transmissions on a daily basis along with carrier apu's. With engines my specialty is the 60 series Detroit but do work on the cummins isx the n-14 and the ism. and also the Volvo engines.

Have a College Degree from university of northwestern ohio in diesel and agriculture mechanics. Have 10 years behind the wheel driving a truck and 4 years working on trucks full time. Also have grown up on a farm so have been tinkering on trucks and tractors all my life.

Awards and Honors
I've gone through online schooling and have received certificates from webb wheel, Timken and Volvo academy.

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