RZR S 900 Crankcase pressure… July 19, 2015 Blew out crank seal for 1st time at 200 miles. Blew out 2nd at 224 miles. Could my crankcase pressure be too high? How would i check that? Or any other reasons this is happening. No warranty. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related