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Cummins 444 - ESN 11430644 CPL 821. Adjusting engine valves…

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Cummins 444 - ESN 11430644...
Cummins 444 - ESN 11430644 CPL 821. Adjusting engine valves and injectors. I have adjusted valves and injectors IBC with 6in. lb. tool. Engine runs but has slight miss under load and white smoke does not clear up. Adjusted valves and injectors using OBC method at injector spec. 105 in. lbs. I start on A #1 TDC and when I get to A on #6 TDC the engine tries to lock down because injector stroke is too tight. What am I missing or doing wrong. I have Cummins bulletin no.(###) ###-####D1. A-1, B-5, C-3, A-6, B-2, C-4. Adjusting injectors and valves on same cylinder. Thanks.
Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Answered in 41 minutes by:
4/17/2020
Technician: james Roberts, Maintenance assistant replied 2 years ago
james Roberts
james Roberts, Maintenance assistant
Category: Medium and Heavy Trucks
Satisfied Customers: 223
Experience: Maintanance assistant at NYS DEC
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Attach your email and I can send you a manual to follow all the steps for adjusting those, its kinda tedious. The stuff you want will be on page 390.
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Customer reply replied 2 years ago

f**@gmail.com

Technician: james Roberts, Maintenance assistant replied 2 years ago
It's on the way
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Customer reply replied 2 years ago
I've ran the overhead like this many times. I am looking for information on the OBC procedure. Valve/injector chart 1-5-3-6-2-4, A-B-C-A-B-C, setting valves and injectors on same cylinder ( like N-14 ). When I run the overhead like this with injectors set at 105 inch pounds it locks the injector rocker arm down and engine will not rotate. I am missing something. Cummins says this way is better for STC
Technician: james Roberts, Maintenance assistant replied 2 years ago
The procedure that should be there is once in proper tdc tighten the injector adjuster until there is no slack in the rocker, then tighten one more full turn. Back the adjuster up until the interior spring washer is at the stop, then using special torque wrench tightento 5-6in/lbs or we used to do about 1/4 turn. I'm not sure where you found 105in/lbs but that is too much. Try the method I sent you here which is what should be in that manual, it should set everything up correctly.
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james Roberts
james Roberts, Maintenance assistant
Category: Medium and Heavy Trucks
Satisfied Customers: 223
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Experience: Maintanance assistant at NYS DEC

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