Mechanics

OIL STARVATION

2008 Honda Pilot • 6 cylinder AWD Automatic • 59,790 miles

If a 3.5 L V-6 Honda engine, in a 2008 Honda Pilot, was starved for oil (run with a low-level of oil or run dry), and it damaged the engine internally, resulting in scoring in the cylinders, how long would it reasonably take for the engine to exhibit signs of the damage? Would it be something that would take thousands of miles to exhibit signs of the damage or would it be expected to exhibit signs much more rapidly (such as immediately)?

Basically, if the starvation was bad enough to lead to scoring in the cylinder walls and a knocking sound from the engine, how long (miles) after the starvation would you reasonably expect it to take before the engine started knocking? For example, would it be reasonable to argue that the engine was starved for oil 5 or 10,000 miles before it actually begins to make a knocking noise?
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Rob214
June 11, 2011.




If it's low or even out of oil damage occurs immediatly

Merlin2021
Jun 11, 2011.
So, is it reasonable to argue that if an engine was going to develop a knock as a result of oil starvation, you would expect it to develop the knock right after the starvation occurred, not many miles after the fact and, if so, how certain could you be in your argument?

Tiny
Rob214
Jun 11, 2011.
A knock is different than scored cylenders, knocking of the connecting rod(crank journal end) or wrist pin piston end)can be caused by over revving of the engine and spun bearing is the result, two different problems!

Merlin2021
Jun 11, 2011.
The technician at the dealership indicated that the engine cylinder walls were scored causing piston slap. He found the cause of the scoring to be oil starvation. The question I am trying to answer is, if the engine was starved for oil, would the piston slap begin immediately afterwards or could it take some time for it to begin.

Tiny
Rob214
Jun 11, 2011.
To listen to the piston slap, please go to:

http://www.youtube.com/watch?v=mARkNZXRT6Q

Thank you.
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Tiny
Rob214
Jun 11, 2011.
It may take some time as the oil level dropped and none was added to replace it, the sump then does not contain enogh oil for the pump to supply the oil to the pump. In any case I don't know how you maintained it? If it was checked regularly and changed according to service intervals, this would not happen unless a leak developed and oil was lost? If it's dry enough, damage occurs almost instantaniously.

Merlin2021
Jun 11, 2011.

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