George:
Sure, there are big, slow commercial diesels with turbocharging that are stressed less than the ubiquitous Lehman, but that isn't any kind of a fair comparison.
We are talking about reliability here. Sure you can put a 5 ton engine in your 35 foot trawler and it will run into the next millennium.
But a fairer comparison is of the non turbocharged Perkins 135 with the turbocharged 160 hp engine. The turbocharged engine is producing more torque over the upper rpm range, so it is putting more force on bearings and piston side walls, ie more stress.
Or compare the non turbocharged Cummins B against the turbocharged models, or the JD, or the .....
David
Sure, there are big, slow commercial diesels with turbocharging that are stressed less than the ubiquitous Lehman, but that isn't any kind of a fair comparison.
We are talking about reliability here. Sure you can put a 5 ton engine in your 35 foot trawler and it will run into the next millennium.
But a fairer comparison is of the non turbocharged Perkins 135 with the turbocharged 160 hp engine. The turbocharged engine is producing more torque over the upper rpm range, so it is putting more force on bearings and piston side walls, ie more stress.
Or compare the non turbocharged Cummins B against the turbocharged models, or the JD, or the .....
David
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