Cat 3116 with 900 hours runs smoothly but randomly drops to 750 RPM (idle) and engine alarm sounds. If I pull throttle back to neutral alarm stops. Wait a few ...

Age of 30 years very difficult with substantial depreciation. I would not worry about the engine since it can be kept in good shape with profession care. The ...

Port engine wouldn´t go over 1200 RPM and stays at that RPM and STB engine will drop the revs when it reaches 1200 RPM. It sounded for me like the same problem.

The Cat 3116 and the Cummins early equivalent (CPL 0970) were often overloaded by the boat builder or the owner or both. Those particular engines were not good ...

When the engine warmed up, under load, exhaust gas would leak into the fuel system. Symptoms were similar to air in the injection system. Only 640 hours on 1998 ...

3. Engine should idle evenly around 700 rpms. Listen for any distinctive crank-speed knocking (not valve train noise, but a “thock-thock-thock”) a.k.a. fuel ...

First, I have checked with two sources and thus far there is no information on a Caterpillar TIB concerning FEPS markings on 3126 engine blocks. I´m not ...