High lube oil temperature developing in a...

Question 1 / 270705eccefa3bacbc34ba4d47dde

Question 1 of 270705eccefa3bacbc34ba4d47dde

High lube oil temperature developing in a diesel engine generally results from __________.

Question 1 of 27070

High lube oil temperature developing in a diesel engine generally results from __________.

🔍 Key Concepts

• Relationship between engine load and heat generation in bearings and pistons • How oil flow removes heat from internal engine parts • Effects of mechanical problems like end play or plugged rings on friction and temperature

💭 Think About

• Which condition would most directly cause the engine to produce more heat than the lube oil system can carry away? • Think about what usually causes all temperatures (exhaust, jacket water, lube oil) to rise together in a marine diesel. • Which option is more of a result of temperature problems, versus a likely cause of high oil temperature?

✅ Before You Answer

• Compare which choice most clearly increases overall engine power demand and internal friction, creating more heat. • Ask: if this problem occurred, would I also expect high exhaust temperature and possibly high jacket water temperature? • Eliminate any options that mainly affect pressure readings without necessarily increasing heat production.

Question 1 of 27070

High lube oil temperature developing in a diesel engine generally results from __________.

high oil pressure

excessive bearing end play

plugged oil control rings

engine overload