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Several threads on reuse of XFI rings suggested that some had done this, what with the gapless rings being out of stock. Do you know how that worked out? My new (to me) XFI gave 150 / 190, 140/ 180, 90, 90 on compression. #3 is clearly a valve, and the head is in the shop for recutting the valve seats. Fresh 3tech valves and bolts are on their way.
Should I take the 40 psi compression jump on oiling as an indication that the compression rings are shot? They appear fine, and unless others have had trouble reusing the stock gapless rings, i plan to reuse mine with new oil rings.
Comments?
re: Singh grooves, carbon buildup seems to limit the lifespan of improvement, so I'm skipping this.
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