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350 Cummins small cam excessive whit smoke and running rough
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NTM Farms
Posted 2/12/2024 05:20 (#10619696 - in reply to #10619497)
Subject: RE: 350 Cummins small cam excessive whit smoke and running rough


Bloomfield MO
farmechspector - 2/11/2024 21:23

Where did the cam come from? Is this the same engine as in the Jan. 9 post linked by Shimmy that came down due to a problem on cylinder 2? Were all these upgrade all added during an in-frame, so cam never came out? Don’t know about these 855s but popping in an engine is often a sign of a wasted cam lobe/lack of valve travel. Dial indicate the push rod travel and compare cylinders 1 & 2. If this is the problem my guess would be if an experienced Cummins guy would have set the overhead he would have noticed this.

Edit: made small error correction

Yes, cam came out. Cam has to come out, to change the cam key, in relation to the cam gear. I had an experienced Cummins guy run the OH.
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