Jason, you have a Cat 3116 engine which is a mechanical engine , you can plan on minum of
500,000 miles depending on maintance and service of engine. Your engine requires special
Tooling to set the overhead injector fuel setting , injector fuel rack timing and valve settings.
All Caterpillar 3100 series engines including the mechanical 3116 and 3126 to all models 3126 A
To Cat C-C 9S have what is called a cast block engine harden steel liners. Caterpillar C-10 and
above have what is called replaceable liners, which allows for higher horse power and mileage
Before rebuild over million miles. ( note: 3126 And above all are electronic engines and depending
on maintance and service are high mile and trouble free operations. One thing I would like to
stress on Caterpillar engines have a very excellent track record. Talk on various internet posting
range from Caterpillar 3116 to C-9 are throwaway engine and several non-caterpillar shops are
starting to bulletproof many engines, both statements are incorrect and cannot be backed with
factual information. Dave Atherton Retired Cat Mechanic.