2009年4月4日 · 2ND RING = Gap positioned 180 degrees from top ring gap, above piston pin hole on opposite side TOP OIL RAIL = Gap positioned 90 degrees from 2ND ring BOTTOM OIL RAIL = Gap positioned 180 degrees from top oil rail EXPANDER = Joint positioned identical to top ring (above piston pin hole) A rebuilder told me the gaps for the oil ring are the most ...

2010年5月5日 · The D17A1 would be perfect. I am interested in all of the clearances if possible. Top ring, 2nd ring and oil ring. Cylinder to piston, ring groove and the most important end gap if possible. All I have found is aftermarket specs I am not sure if they are comparible to factory.

2007年10月18日 · Zero end-gap ring designs are constructed where the ends of the ring are cut to half thickness. When installed in the piston, the half-thickness sections of the ring overlap. When the engine is running, the ring heats and expands. The ends of the zero end gap ring slide across each other, which in turn, leaves no gap for the gases to escape.

2021年9月15日 · After i picked it up i called my local chevy dealer and gave them the vin. They said there were no open recalls and that the Piston/Rings were replaced in 2015 when the vehicle had around 40,000 miles. It now has 95,000. Was the piston/ring fix a permanent solution? Or did people continue to experience high oil consumption after having them ...

2003年12月5日 · A 'stuck' ring is one that either isn't rotating when it should, or more commonly, when it is stuck in the grove and isn't pressing against the cylinder wall and therefore allowing proper sealing. Some related reading;Piston Ring Gap Alignment BTW I'm a finance guy who plays at this so take this info for what it is worth

2012年12月7日 · The rings heated up under full boost closing the end gap up, and the engine partially seized. Our team knew better than to run 0.003 inches of ring end gap. Put another way, most of the ring and cylinder wear happens over a very long period of time, with 150 million piston strokes. Not during a normal break in. Think about a boat engine.

2019年4月26日 · I set ring gaps to be spaced 120 degrees apart but, no ring gap lined up with the piston pin.In the past, I've removed many pistons and have observed that almost all rings have maintained an approximate 120 degree separation in the gap placement. This observation, leads me to believe that piston rings in 4 cycl auto engines rotate very little.

2013年5月24日 · I always push new rings down the bore with the piston to check ring end gap and as far as I know that is the accepted method of checking end gap. Before installing new rings in a used bore, the use of a glaze breaker is critical as installing new rings without deglazing the bores will usually result in the new rings not seating correctly.

2002年6月5日 · A much thinner ring is set here and it's gap is revolved away from the compression ring's gap to completely span the original, familiar gap. I believe they were called "Perfect Circle". A ring set into and atop the original compression ring, if you will.

2016年7月23日 · The typical gapless rings have an overlapping "lap joint" where the gap would be...means that there's a cantilever off each end of the ring a little weaker than the main ring, and the lap joint adds friction as it tries to expand and contract to the vagaies of the bore. That which you invented in the bath has been done in a couple of ...