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orange4boy · 12-02-2008, 04:07 AM

Neutral coast engine off automatic. IM IN UR FORUM MESSING WIT UR ACRONIMS

Hi all, Interesting discussion.

How long does it take for the bearings in an auto to go dry after the pump stops. I would imagine a helluva long time. The reason oil starvation in an engine can be quick and catastrophic is mainly the cylinder walls. They can go dry and cease pretty fast due to the heat and the rings scraping oil off every stroke. Then the piston stops and your crank keeps going. An automatic does not have these harsh conditions so the seconds that elapse during a reasonable coast could not possibly starve the bearings enough to do any damage... In my opinion. Also, in neutral there is very little pressure on anything, just rotation as far as I know.

If someone could explain how all that oil will magically evaporate then I might believe the anti coast theory.

Anyone?

Anyone actually experience a failure under these conditions?

I want to believe.

Hugs and cookies.

12-02-2008, 04:07 AM	#33 (permalink)
orange4boy Master EcoModder Join Date: Aug 2008 Location: The Wet Coast, Kanuckistan. Posts: 1,275 The Golden Egg - '93 Toyota Previa DX 90 day: 31.91 mpg (US) Chewie - '03 Toyota Prius 90 day: 57 mpg (US) The Spaceship - '00 Honda Insight Thanks: 100 Thanked 306 Times in 178 Posts	Neutral coast engine off automatic. IM IN UR FORUM MESSING WIT UR ACRONIMS Hi all, Interesting discussion. How long does it take for the bearings in an auto to go dry after the pump stops. I would imagine a helluva long time. The reason oil starvation in an engine can be quick and catastrophic is mainly the cylinder walls. They can go dry and cease pretty fast due to the heat and the rings scraping oil off every stroke. Then the piston stops and your crank keeps going. An automatic does not have these harsh conditions so the seconds that elapse during a reasonable coast could not possibly starve the bearings enough to do any damage... In my opinion. Also, in neutral there is very little pressure on anything, just rotation as far as I know. If someone could explain how all that oil will magically evaporate then I might believe the anti coast theory. Anyone? Anyone actually experience a failure under these conditions? I want to believe. Hugs and cookies. __________________ Vortex generators are old tech. My new and improved vortex alternators are unstoppable. "It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.