Set Tension Ring
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199 D VVS1 Round Brilliant Cut Tension Setting Diamond Engagement Ring 18k |  |
US $7,999.00 | 28d 19h 46m |
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GIA Tension Set Round Brilliant Colorless Natural Diamond Engagement 18k Ring | |
US $12,000.00 | 22d 23h 38m |
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133ct D VS DIAMOND TENSION SET ENGAGEMENT 14k RING |  |
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US $11,600.00 | 16d 10h 57m |
How does an oil ring expander work (in a piston ring set)?
I have a piston ring set that uses 3-pc oil rings (a wavy expander ring and two rails that fit over it). I'm trying to figure out how the expander ring is supposed to work. I know it's supposed to provide outward tension on the oil rails against the cylinder wall. But, it seems like the expander is too big to install with the oil rails in place. With the rails on the expander, the sides of the rails protrude wider than the cylinder bore. I drew up a little diagram to show my problem a little better:
http://www.douglasharrington.com/personal/drawing.jpg
My question is, are wavy expander rings made to be compressed down with a ring compressor, or are they supposed to be sized a certain way? The manufacturer of the rings insists they are sized properly and are supposed to be the size they are, but everyone else I've talked to says the expander is too large.
Thanks.
First thing to do is check the end gap on 3 or so rails to be sure you have the right size. Push the single ring rail down the bore with the top of a piston to be sure it is square in the bore. Stop when the piston is down to the pin. Remove piston and check gap in ring in cylinder with a feeler gauge. The gap will vary with engine bore and design but should be about .015 to .030. If there is no gap or the gap is very large like .100 then the rings are the wrong size.
If the oil rail rings have the correct gap install the expander into the groove first. Then install the lower rail followed by the upper rail. Set the gaps away from each other and away from the expander ends. Be sure the expander ends butt together and do not overlap. When the oil ring set is installed right push it all the way to one side and check with a small straight edge to be sure the ring set does not protrude from the ring groove on the side that is pushed in. If it doesn't protrude then the ring package is correct. You need a ring compressor unless the bore is chamfered like on a motorcycle cylinder. If it's a motorcycle and the bore is chamfered you can use you fingernails (ouch) or use a small piece of wood like an ice cream stick to carefully get the ring rails into the cylinder. No forcing because it's easy to damage the rails.
good luck
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199 D VVS1 Round Brilliant Cut Tension Setting Diamond Engagement Ring 18k | |
US $7,999.00 | 28d 19h 46m |
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GIA Tension Set Round Brilliant Colorless Natural Diamond Engagement 18k Ring | |
US $12,000.00 | 22d 23h 38m |
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133ct D VS DIAMOND TENSION SET ENGAGEMENT 14k RING | |
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US $11,600.00 | 16d 10h 57m |
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1 carat D VS DIAMOND TENSION SET ENGAGEMENT GOLD RING | |
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US $11,350.00 | 16d 10h 57m |
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123 carat F VS DIAMOND ENGAGEMENT 14K TENSION SET RING | |
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US $9,385.00 | 15d 14h 58m |
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150 TCW H I PRINCESS SQUARE CUT TENSION SET DIAMOND ENGAGEMENT RING EGL USA 18K | |
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US $6,350.00 | 26d 1h 38m |
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09 carat F VS2 DIAMOND ENGAGEMENT 14K TENSION SET RING | |
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US $8,995.00 | 15d 14h 57m |
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273CT WOMENS DIAMOND ENGAGEMENT WEDDING RING ROUND CUT TENSION SET YELLOW GOLD | |
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US $11,995.00 | 4d 4h 26m |
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273CT WOMENS DIAMOND ENGAGEMENT WEDDING RING ROUND CUT TENSION SET WHITE GOLD | |
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US $11,995.00 | 4d 4h 24m |
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WOMENS SOLITAIRE PRINCESS SQUARE DIAMOND ENGAGEMENT RING TENSION SET YELLOW GOLD | |
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US $5,195.00 | 27d 8h 54m |
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1CT WOMENS SOLITAIRE PRINCESS CUT DIAMOND ENGAGEMENT RING TENSION SET WHITE GOLD | |
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US $5,195.00 | 27d 8h 54m |
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100CT TENSION SET PRINCESS CUT DIAMOND ENGAGEMENT RING | |
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US $5,599.00 | 24d 22h 34m |
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1 Ct Round Diamond Solitaire Swirl By Pass Engagement Ring Tension Set SI1 GIA | |
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US $7,099.99 | 19d 12h 15m |
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175CT WOMENS DIAMOND ENGAGEMENT WEDDING RING PRINCESS TENSION SET WHITE GOLD | |
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US $4,395.00 | 28d 20h 22m |
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100CT ROUND TENSION SET DIAMOND ENGAGEMENT RING | |
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US $5,195.00 | 25d 2h 22m |
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175CT WOMENS DIAMOND ENGAGEMENT WEDDING RING PRINCESS TENSION SET YELLOW GOLD | |
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US $4,395.00 | 27d 22h 10m |
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1CT ROUND TENSION SET DIAMOND ENGAGEMENT RING SOLITAIRE | |
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US $4,895.00 | 25d 19h 47m |
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225 CT ROUND BRILLIANT CUT TENSION SET 3 STONE DIAMOND ENGAGEMENT RING EGL USA | |
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US $4,699.00 | 26d 1h 38m |
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075CT TENSION SET ROUND CUT SOLITAIRE DIAMOND ENGAGEMENT RING R110 | |
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US $3,850.00 | 28d 19h 24m |
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101 Ct Round EGL Certified Diamond Solitaire Ring Tension Setting 14k Gold | |
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US $3,950.00 | 28d 3h 52m |
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125 CT F G ROUND CUT MODERN TENSION SET DIAMOND ENGAGEMENT RING EGL USA 14K | |
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US $4,429.00 | 26d 1h 38m |
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WOMENS SOLITAIRE PRINCESS CUT DIAMOND ENGAGEMENT RING TENSION SET WHITE GOLD | |
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US $3,995.00 | 27d 8h 54m |
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WOMENS SOLITAIRE PRINCESS CUT DIAMOND ENGAGEMENT RING TENSION SET YELLOW GOLD | |
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US $3,995.00 | 27d 8h 54m |
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125CT ROUND TENSION SET DIAMOND ENGAGEMENT RING | |
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US $5,799.00 | 20d 18h 45m |
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133ct D VS2 DIAMOND ENGAGEMENT 14K TENSION SET RING | |
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US $6,525.00 | 17d 15h 41m |
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Tension Invisible Setting 190Ct Cushion Diamond Engagement Ring GIA 18k D E VS | |
US $4,499.00 | 24d 17h 47m |
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101 Ct Round E SI3 EGL Certified Diamond Solitaire Ring Tension Setting | |
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US $3,500.00 | 28d 4h 22m |
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125CT PRINCESS CUT TENSION SET DIAMOND ENGAGEMENT RING | |
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US $5,750.00 | 20d 2h 53m |
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125 TCW ROUND WHITE ROSE TWO TONE TENSION SET DIAMOND ENGAGEMENT RING EGL USA | |
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US $4,249.00 | 24d 7h 58m |
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060CT TENSION SET PRINCESS CUT DIAMOND ENGAGEMENT RING | |
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US $2,955.00 | 28d 22h 3m |
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100ct D VS2 DIAMOND ENGAGEMENT 14K TENSION SET RING | |
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US $6,075.00 | 17d 15h 41m |
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Tension Invisible Setting 170Ct Cushion Diamond Engagement Ring GIA 18k D E VS | |
US $3,999.00 | 24d 17h 47m |
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110CT TENSION SET ROUND CUT DIAMOND ENGAGEMENT RING | |
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US $5,600.00 | 18d 19h 26m |
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101 Ct Round F SI3 EGL Certified Diamond Engagement Ring Tension Setting | |
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US $2,950.00 | 28d 4h 52m |
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101 Ct Round F SI3 EGL Certified Diamond Solitaire Ring Tension Setting | |
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US $2,950.00 | 28d 4h 52m |
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1CT PRINCESS CUT TENSION SET DIAMOND ENGAGEMENT RING | |
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US $4,999.00 | 20d 4h 7m |
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108ct F VS DIAMOND ENGAGEMENT 14ct TENSION SET RING | |
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US $6,215.00 | 15d 13h 26m |
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3 4 carat F VS DIAMOND ENGAGEMENT 14ct TENSION SET RING | |
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US $5,950.00 | 15d 13h 25m |
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125 TCW H I ROUND CUT DIAMOND TENSION SET TWO TONE GOLD ENGAGEMENT RING EGL USA | |
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US $2,885.00 | 24d 7h 58m |
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175ct D VS2 DIAMOND ENGAGEMENT 14K TENSION SET RING | |
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US $4,575.00 | 17d 15h 41m |
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ROUND CUT DIAMOND ENGAGEMENT RING TENSION SET 100CTW | |
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US $4,097.46 | 10d 20h 43m |
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081ct VS F Natural Round Cut Diamond Engagement Ring Tension Set 14k White Gold | |
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US $2,129.00 | 16d 19h 29m |
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LOVESTORY 14k Yellow Gold ROUND DIAMOND ENGAGEMENT RING TENSION SET 075ctw | |
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US $950.00 | 19d 19h 16m |
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ESTATE DIAMOND 14KT WHITE GOLD ROUND SOLITAIRE TENSION SET ENGAGEMENT RING 4610 | |
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US $2,990.00 | 12d 3h 4m |
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14K White Gold 025CT 3 Diamond Trio Promise Ring Featuring Tension Set Mounting | |
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US $609.00 | 18d 23h 17m |
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ROUND DIAMOND ENGAGEMENT RING TENSION SET 120CT | |
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US $5,545.06 | 20h 16m |
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080CT PRINCESS DIAMOND ENGAGEMENT RING TENSION SET | |
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US $2,687.46 | 10d 20h 46m |
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ROUND CUT DIAMOND ENGAGEMENT RING TENSION SET 120CT | |
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US $5,452.00 | 20h 23m |
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ROUND CUT DIAMOND ENGAGEMENT RING TENSION SET 075CTW | |
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US $2,255.06 | 10d 20h 43m |
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PRINCESS DIAMOND ENGAGEMENT RING TENSION SET 075CTW | |
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US $2,185.50 | 10d 20h 58m |
