I proceeded to grind one side of the ring since the untouched side is already perfectly square to the top ring surface. I bought the Summit version model #SUM-906795 from for $31.95. Of course it didn't fit in there so I took it out then proceeded to place the ring end against the stops of the manual ring filer. I placed the top ring in the cylinder and with the piston pushed it down passed the first ring land gap, then measured with a. I'm not sure how the cylinder's are numbered but I started out with front passenger side. Let me know If I have anything wrong, although I'll also give CP a call tomorrow to verify this. I read on another thread the bent up portion goes into one of the hex valley of the middle oiling ring.Īlso when setting the gaps, should I mark each set of rings I measured in each specific cylinder bore just in case there where slight variances in bore diameter? The top ring is black, the middle ring is copper colored with a hex shape going up and down throughout the diameter of the ring, the bottom ring is black also but one end has half of the end bent up. These rings are thinner than the top and 2nd ring. The second ring is black and has what they called a taper hook groove on the outside edge of the ring and this one should always face down with the gap at the 9 o'clock position. This one should have the bevel facing up and the gap located at the 8 o'clock position with 12 o'clock facing the engine front. The top ring is the copper colored ring with a bevel on the inside. The 12 and 6'clock position would be the centerline of the wrist pin. I just checked the instructions that came with the rings, so I guess I'll answer some of my own questions. I also was told to just grind one side of the ring end since the untouched end will be perfectly 90 degrees square to the top and bottom surface of the ring. Do I need a piston ring compressor just to check the gap clearance in the bore or can I just compress the ring by hand and use the top of the piston to push it down into the cylinder bore? I know to deburr the ring ends so it doesn't scrape the cylinder walls. ![]() How does is this orientated? I bought a piston ring filer (a manual one that you have the ring up against the stops and a diamond disc with a lever you turn to grind the ring end) and a feeler gauge. ![]() Does anyone know which rings are which? Top, 2nd, oiling rings? I also noticed one of the rings has half of the ring end bent up. I decided to do this myself so I know that it was done to the CP's specification, procedure, and orientation. ![]() I'm about to set the ring gaps too on my 100mm CP Pistons.
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