Caterpillar 3116 Marine Engine Problems

One still running with 650 hours will probably last awhile longer.

Caterpillar 3116 marine engine problems. Any cat 3116 3126 or c7 are good engines. Cat do not like to be idle. It was a good engine. It s not that we hate the cat 3116 it s that we hate the fact that it s hard to work on.

I ve rebuilt a bunch of the 3116 and 3126 engines. 3116 why we hate it. Caterpillar upgraded the oil cooler gaskets because they all leak. The 3116 had lots of early problems soft blocks head injector problems.

I don t know a lot about marine diesels and was looking for some input i am looking to buy a 1984 egg harbor with 2 cat 3116 ta 300 hp engines he has all documented maintenance and has said they have been well cared for my concern is they have 5000 hrs on them he says the boat was a charter and most of the hours was trolling hrs. Adjustment alternator belt illustration 16 g00285332 1 adjusting bolt. Most of problems are due to misuse or poor maintenance. Make sure you get a complete cat history on the motors.

And get a cat survey. If the engine is not equipped with a freon compressor the alternator is used to adjust the belt tension. This is why not good for bucket trucks driven by pto. They also changed the high pressure oil line design a few times also leaked.

Make sure you use anti seize on all bolts especially the front cover. You can help the adept ape channel for free. When you have hundreds of thousands engines on market you always will find hundreds of people who complain about.