Origin of power stroke engine
Heard a comment at work, today, that the powerstroke diesel, is a gas engine reworked as a diesel. Have not heard or read this before so I thought to ask here .
Forum Discussion
Ford and Navistar had a very strained relationship in their engine partnership. Although the engines were coming out of Navistar's Huntsville, Alabama factory, Ford engineers spec'd out the motors and had final say so on components, etc. Navistar engineers would have preferred to have some different parts that would work better.
When the poorly designed 6.0's caused so many problems, Navistar and Ford were to share the cost of warranty repairs. Navistar was very short of capital, and they couldn't pay their half of repairs. Ford quit paying Navistar for new motors, and Navistar quit delivering diesel engines. About the same time, Navistar raised the wholesale prices of diesel engines about $3K each. Ford had to up the gas truck production for a short time until the companies could work out their differences. Ford was close to having to shut down the SuperDuty production since 2/3 of trucks sold were diesels.
While the warranty issue was finally settled, Ford realized that they were giving up $4K-$5K per unit profit contracting the engine production to Navistar. It essentially doomed Navistar's production of diesels used in Ford light duty trucks. Ford went on engineer and build their own 6.7 engine in current use.
Diesel engine manufacturers continue to have difficulties engineering diesel engines to U.S. Government Tier III and Tier IV specs. Caterpillar has gone out of the medium duty and heavy duty truck engine business. Navistar bet the company on their engineering an non-DEF heavy truck engine that failed, and they're in very poor financial condition after having to fill in with Cummins big diesels.
And despite the problems with the Navistar built 6.0 and 6.4 engines, Ford has delivered and still makes more "light duty" 3/4 ton and 1 ton diesel powered trucks than General Motors and Dodge/Ram trucks combined.
When the poorly designed 6.0's caused so many problems, Navistar and Ford were to share the cost of warranty repairs. Navistar was very short of capital, and they couldn't pay their half of repairs. Ford quit paying Navistar for new motors, and Navistar quit delivering diesel engines. About the same time, Navistar raised the wholesale prices of diesel engines about $3K each. Ford had to up the gas truck production for a short time until the companies could work out their differences. Ford was close to having to shut down the SuperDuty production since 2/3 of trucks sold were diesels.
While the warranty issue was finally settled, Ford realized that they were giving up $4K-$5K per unit profit contracting the engine production to Navistar. It essentially doomed Navistar's production of diesels used in Ford light duty trucks. Ford went on engineer and build their own 6.7 engine in current use.
Diesel engine manufacturers continue to have difficulties engineering diesel engines to U.S. Government Tier III and Tier IV specs. Caterpillar has gone out of the medium duty and heavy duty truck engine business. Navistar bet the company on their engineering an non-DEF heavy truck engine that failed, and they're in very poor financial condition after having to fill in with Cummins big diesels.
And despite the problems with the Navistar built 6.0 and 6.4 engines, Ford has delivered and still makes more "light duty" 3/4 ton and 1 ton diesel powered trucks than General Motors and Dodge/Ram trucks combined.
