neon14 Posted October 29, 2010 Report Share Posted October 29, 2010 anybody know which way to install a half keystone piston ring? I dont want to put it on upside down. one side is tapered and has the letter R stamped on it and the other side is flat. it could fit both ways on the piston. its on a 2 stroke ez go golf cart. thanks Link to comment Share on other sites More sharing options...
lbeaver087 Posted October 29, 2010 Report Share Posted October 29, 2010 idk knw eather but if i was to gess i would put the taper down lol but if in doubt i would call the store tht services it or get a tech manual Link to comment Share on other sites More sharing options...
KISS_Racing Posted October 29, 2010 Report Share Posted October 29, 2010 Hey Will, this is from a Mercury outboard motor. Half Keystone rings Link to comment Share on other sites More sharing options...
KISS_Racing Posted October 29, 2010 Report Share Posted October 29, 2010 Also, Look down the page for MayJun08 - Piston & Rings. EZ GO Link to comment Share on other sites More sharing options...
jracer98 Posted October 30, 2010 Report Share Posted October 30, 2010 We have had electric fleets for the last few leases but I believe the rings go taper "up" I'll try to run down the ezgo factory guy and see what the service manual says but that might be Monday. Can you post the manufactured year and/or a unit serial number? Jay Link to comment Share on other sites More sharing options...
jwmbishop Posted October 30, 2010 Report Share Posted October 30, 2010 Taper up! this channels the gasses down to the backside of the ring (direct charging) forcing the ring outward - seal is bottom of ring to top of land and face of ring to cyl wall. THIS MATCHES THE PISTON RING GROOVES!!! And NO they won't fit ether way - upside down will bind big time. If NOT grooved for HK you should not run HK! Link to comment Share on other sites More sharing options...
neon14 Posted November 2, 2010 Author Report Share Posted November 2, 2010 Thanks guys. I put it together taper up and it runs great. Also I didnt know golf cart motors run both ways. Thats kind of cool. Link to comment Share on other sites More sharing options...
KISS_Racing Posted November 2, 2010 Report Share Posted November 2, 2010 Isn't there a spare Busa motor around you could put in instead! Link to comment Share on other sites More sharing options...
jwmbishop Posted November 2, 2010 Report Share Posted November 2, 2010 any two stroke can run in either direction if timed straight up - or even within 8 degrees of straight up (but will run better toward the advanced side). Link to comment Share on other sites More sharing options...
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