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Scott, ASE Certified Technician
Category: Car
Satisfied Customers: 1638
Experience:  Ase certified, 24 years, bumper to bumper all makes
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four conditions that will extend crankshaft life?

Customer Question

Some conditions that can shorten crankshaft life.
list four conditions that will extend crankshaft life?
Submitted: 6 years ago.
Category: Car
Expert:  Scott replied 6 years ago.



Shorten crank life:


1. Dirty crank case


2. Not frequent enough oil services


3. Clogged oil pump pick up screen


4. Binding piston wrist pins


5. Carbon build up in engine


6. Clogged oil return passages


7. Failing or failed oil pump {see #3.}


Extend life:


1. Frequent oil services


2. Synthetic oils with approved API certifications


3. Good oil pressure


4. Clean oil return passages


5. Not allowing carbon build up in cylinders to piston travel is impeded, thus causing

wrist pin damage due to shortened travel... Hammering against the carbon ridge.



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