View Single Post
Old 01-03-2011, 10:14 AM   #17
insite
Registered User
 
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
Quote:
Originally Posted by JFP in PA
If your engine had already “detonated”, and was in the process of stopping when shrapnel got to the pump vanes, you wouldn’t be searching for the vanes, they would still be near the pump, along with the chunk(s) of metal shrapnel that tore them loose (which also would not have have had time to been reduced to small bits and dispersed). If the vane debris totally disintegrated and made it all the way to the radiators, they had to have time to do so; the pump failed first.



i completely disagree. let's say it took ten seconds from the start of the problem until the motor quit turning. at full tilt, byron was likely averaging 6,000 RPM's.

the water pump pulley is a little smaller than the crank pulley. let's say it's 15% smaller. this means the water pump would have turned 1.18 revolutions for each crank revolution.

at ten seconds, we're looking at over SEVEN HUNDRED rotations of the water pump during the failure. this is enough time to circulate the entire contents of the cooling system MANY times over. the missing debris is in the radiators.
__________________
insite
'99 Boxster
3.4L Conversion

http://i156.photobucket.com/albums/t...1/KMTGPR-1.jpg
insite is offline   Reply With Quote