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Henry Schmidt Henry Schmidt is offline
Try not, Do or Do not
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Join Date: Apr 2004
Location: Fallbrook, Ca. 92028
Posts: 5,942
Your observation is mostly correct.
On early cars not all oil is filtered all the time. When the engine is cold and making the most oil pressure the some of the oil by-passes the filter. I have seen amazingly large pieces of crap get past the screen on the scavenge side oil the pump. Once it by-passes the oil filter it's a straight shot into the pressure side of the oil pump and off to the bearings, squirters and cam spray bar.
Does it happen allot? no When it happens is it bad? yes

Worth the gamble? you choose
Henry Schmidt
Ph: 760-728-3062
Old 10-20-2005, 02:04 PM
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