View Single Post
Old 07-03-2011, 03:34 PM   #6
blue2000s
Porscheectomy
 
Join Date: Mar 2006
Location: Seattle Area
Posts: 3,011
Quote:
Originally Posted by Stroked & Blown
Can you explain that?
My thinking is that the the input shaft and other transmission components that are active while in neutral (trans pump?) would be a higher load than when the clutch is depressed. Though the difference is probably minimal.

"The clutch sits in between the transmission and engine. It's bolted to the flywheel, and the flywheel is bolted to the crankshaft. Each time the clutch pedal is pushed in, the throw-out bearing pushes an amount of force on the pressure plate to dis-engage the clutch. This force applied to the pressure plate obviously puts an amount of force on the crankshaft."

"when starting the engine with the clutch pedal down, it's putting amount of force on the crank, and since the engine was off, there has not been any oil flow or oil pressure at all, possibly resulting in excessive wear on the thrust bearing. "

From: http://www.dsmtuners.com/forums/articles-engine-fuel/342560-crankwalk-depth-explanation.html
blue2000s is offline   Reply With Quote