YachtForums.Com - View Single Post - Will slowing down damage larger diesel engines

Kniffin · 03-15-2008, 09:03 PM

Given todays computerized fuel injection, I would not think that the injectors would "slobber" fuel at any point.

I also wonder, that if you can test oil for proper additives, if you can also have field tests for fuel in oil.

Is added filtration going to filter out the blowby byproducts such as fuel?

If the tests show some additive levels to be low, can some be added? Are some oils, such as synthetic oils preferable in cases such as this?

My CAT guy thinks that having pyrometers installed will help determine the best rpm's at which engines are operating well and burning the fuel efficiently, so as to prevent glazing and fuel blowby. Maybe it's not idle speeds but upwards 2-400 rpm (just speculating) and not near the rpm when the turbo wants to kick in.

I also wonder why some charter boats go 10k hours between overhauls with big engines and tons of trolling.

03-15-2008, 09:03 PM	#20
Kniffin Registered User Join Date: Jul 2007 Location: Fort Lauderdale, Florida Posts: 8	Given todays computerized fuel injection, I would not think that the injectors would "slobber" fuel at any point. I also wonder, that if you can test oil for proper additives, if you can also have field tests for fuel in oil. Is added filtration going to filter out the blowby byproducts such as fuel? If the tests show some additive levels to be low, can some be added? Are some oils, such as synthetic oils preferable in cases such as this? My CAT guy thinks that having pyrometers installed will help determine the best rpm's at which engines are operating well and burning the fuel efficiently, so as to prevent glazing and fuel blowby. Maybe it's not idle speeds but upwards 2-400 rpm (just speculating) and not near the rpm when the turbo wants to kick in. I also wonder why some charter boats go 10k hours between overhauls with big engines and tons of trolling.