Factory honda civic piston ring gap | BobIsTheOilGuy
2006年1月16日 · If you are to measure from the bottom of the cylinder bore, just below where the piston skirts travel (not the top where it's closest to the cyl head and usually exhibits a bit of tapering after the engine been in service for a while...) top ring: standard (new): 0.006" to 0.012". service limit 0.024". second ring:
Piston Ring Gap Position - BobIsTheOilGuy
2009年4月4日 · Here is how I positioned the gaps. TOP RING = Gap positioned above piston pin hole. 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 ...
Piston Ring Gap Position | Page 2 | BobIsTheOilGuy
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.
Is 2010 Equinox piston ring fix a long term solution?
2021年9月15日 · Recently bought a 2010 Equinox with the 2.4 in it. 2 weeks later my cousin told me about their oil consumption issues. Had to add 2 qts of oil the next day (9/10/21). The place i bought it from kindly took it to diagnose and they replaced the intake manifold instead of just cleaning it. Noted that they did not believe it to be the piston rings ...
Can someone explain piston ring construction/movement?
2003年12月5日 · Mar 2, 2021. #6. Possibly of interest, piston rings are the single most important, and largest, source of friction in an engine. With that in mind, simple geometry dictates that, other things being relatively equal, the less piston ring "swept area" and engine has, the more efficient it …
Piston rings - BobIsTheOilGuy
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.
Piston Rings and Grooves - BobIsTheOilGuy
2002年6月5日 · The bottom ring rides over the small orifices in the piston which allow oil to move from the groove back to the internals of the engine. Its function is not primarily to prevent blow-by gasses from entering the crankcase. The compression rings however don't function to contact a heavy oil film like the bottom ring.
Breaking in re-built LS, break-in oil, rings seating, misc. questions
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.
Gapless compression rings and oil... | BobIsTheOilGuy
Europe. Jan 1, 2017. #5. The thing that struck me as odd is that a properly designed gapless compression ring, provided it was suitably mass produced, must be one of the cheapest add-ons you could tag onto a pre-existing engine design which would/should deliver tangible benefits to power, emissions, fuel economy and oil life.
Do Piston Rings Rotate in their grooves whilst the engine's …
2006年12月23日 · Oil consumption of an engine causes particulate matter, poisoning catalysts and sometimes abnormal combustion like pre-ignition. One of the factors of oil consumption is oil transport via a piston ring-gap. Coincident of ring-gaps at a same position may cause an increase in oil consumption. It was a