tcspeer Posted July 7, 2004 Share Posted July 7, 2004 Found this post at another board concerning the 2.2 engine: According to the 1997 Technical Referance Booklet; "Compression has been increased to 9.7/1 by reshaping the crown of the piston. THIS ELIMINATES THE CLEARANCE THAT WAS AVAILABLE BETWEEN THE PISTON AT T.D.C. AND A FULLY OPEN VALVE" Don't know if this is correct but maybe the reason I bent my valves when Idle pully came apart. Quote Link to comment Share on other sites More sharing options...
DerFahrer Posted July 8, 2004 Share Posted July 8, 2004 Checking my EndWrench magazine from Fall 2003, I just found the exact sentence you posted, so I guess the EJ22 was interference starting with the 97 MY. Bummer. Sorry dude Quote Link to comment Share on other sites More sharing options...
paladin_w Posted July 9, 2004 Share Posted July 9, 2004 I am not very knowlegable about inner workings of engines but I thought a higher compression was a good thing, gave more power. am I completely off or just a little confused? Quote Link to comment Share on other sites More sharing options...
tcspeer Posted July 9, 2004 Author Share Posted July 9, 2004 I would have been willing to give up the little more compression, to keep the non interference engine. Quote Link to comment Share on other sites More sharing options...
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