Originally Posted by Linctex
Originally Posted by ofelas
Thats BT not VT & they do very well in my Dodge generators thx.
Originally Posted by CT8
All you need to know is the the 855 ci engines were great engines, the KTA series were really powerful and the VT series belonged in boat or generators.
No.....VT
The VT555 Cummins was indeed in a lot of tractors & generators.
Anything where they can sit at one RPM all day long and they were happy.
The "small Vee" series of engines at Cummins preceded the B and C-series I-6's up to ~1982.
There was a 378 V-6 that was replaced by the 6B.
There was a 504 V-8 that was replaced by the 6C.
The 504 was later stroked to 555, which was somewhat notorious for breaking crankshafts.
The B and C engines were developed in a joint venture with Tenneco (corporate parent of JI Case) that was called Consolidated Diesel Company. The technical center was in Columbus, Indiana, and was called the Midrange Engine Technical Center. Manufacturing was in Rocky Mount, NC.
Once upon a time, I happened upon a 5-cylinder B-series engine in the basement on the Cummins Technical Center. It looked exactly like a 4B3.9 and a 6B5.9, only was called an I4.9 on the data plate, which was dated 1982. Too bad they didn't mass-produce that one.
My boss at Cummins was formerly the Chief Engineer of the K-series engine, and he had a very conservative approach to engine design. Once was had a design review of the camshaft for a tank engine project, and by the time he got done asking questions about extreme load conditions and applying safety factors, we had decided to use B-series main bearings for cam bearings! This is the kind of thought process that leads to engines that are capable of much more power than what the rating plate says.