Above the oil ring, about .050 into the third landBelgian1979 wrote: ↑Sat Mar 28, 2020 6:46 am bit confused is the pin portruding into the oil ring or the second compression ring?
Wrist pin into the second land.
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Re: Wrist pin into the second land.
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Re: Wrist pin into the second land.
ok, mine is just in the oil control ring. Not sure if that hurts oil consumption.
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Re: Wrist pin into the second land.
Shouldn't....the second ring is the primary oil control ring, not the oil rings themselves.....Belgian1979 wrote: ↑Sun Mar 29, 2020 7:22 am ok, mine is just in the oil control ring. Not sure if that hurts oil consumption.
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Re: Wrist pin into the second land.
Oh LAWD!...here we go.....Coloradoracer wrote: ↑Sun Mar 29, 2020 9:15 amShouldn't....the second ring is the primary oil control ring, not the oil rings themselves.....Belgian1979 wrote: ↑Sun Mar 29, 2020 7:22 am ok, mine is just in the oil control ring. Not sure if that hurts oil consumption.
Re: Wrist pin into the second land.
Alloy steel self supporting oil ring, like an old cast one piece oil ring, but suitably re-designed
Maybe like you'd wrap an I - Beam around a circular former after cross drilling ...... but as a production job
Cost a fortune initially, but if put into limited production maybe not so ...... dedicated machine to punch, form and roll to near net shape with nominal external finishing ....... usual cost / benefit analysis bean counting exercise .......
A similar cast nodular ring may work but if you started having come backs the whole thing would be dead in the water forever
Added bonus would enable you to move the other rings down for, say, turbo apps
Maybe like you'd wrap an I - Beam around a circular former after cross drilling ...... but as a production job
Cost a fortune initially, but if put into limited production maybe not so ...... dedicated machine to punch, form and roll to near net shape with nominal external finishing ....... usual cost / benefit analysis bean counting exercise .......
A similar cast nodular ring may work but if you started having come backs the whole thing would be dead in the water forever
Added bonus would enable you to move the other rings down for, say, turbo apps
Re: Wrist pin into the second land.
If it's a N/A application could you put the piston .060 out the deck with a .100 Cometic gasket. That would give you a little more room to fit the ring pack. I've done this on antique pull tractor builds to add a little more stroke.
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Re: Wrist pin into the second land.
Are you serious Colo.Racer ? The oil rings remove "MOST" of the oil from the cyl. walls, and the Napier 2nd ring wipes most of what is left behind after the oil ring's effort. Do i have this about right Mark O ( and or) Piston Guy Mark H.
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Re: Wrist pin into the second land.
You do.
If it were the other way around we'd put the oil drainback holes in the third land.
If it were the other way around we'd put the oil drainback holes in the third land.
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Re: Wrist pin into the second land.
I'd do that with some of my customers in a custom application. For the average guy that buys a stroker kit.....not a chance.
It's hard enough getting them to put the oil rail supports in.