Full Version: cork plugs in crank????
Working on an old '73 tx 340 free air. When we took the cylinders off we noticed that there were cork plugs in the holes of the countrweights on the crank. Is this something polaris did back inthe day? Or did somebody take a cheap way out of making windage plates ???
QUOTE(rxl67 @ Feb 22 2008, 11:32 AM) 
Working on an old '73 tx 340 free air. When we took the cylinders off we noticed that there were cork plugs in the holes of the countrweights on the crank. Is this something polaris did back inthe day? Or did somebody take a cheap way out of making windage plates ???
That was standard. I believe they were there to reduce crankcase volume.
QUOTE(polaris_dave @ Jan 22 2009, 07:48 PM)
That was standard. I believe they were there to reduce crankcase volume.
I'm much too young to know about this myself, but that is true, according to my grandfather.
common back in the day. I ran several TXL mod motors back in the day and left them out. no difference in perfromance
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