Am I missing a something here?
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
Am I missing a something here? Now this is one my scared pistons from my 408.... am i suppose to have like another seal ring or what not at the bottom row of rings?there is a gap between the bottom ring and someone told me im missing a ring.
TECH Regular
Joined: Jul 2011
Posts: 452
Likes: 2
The oil control ring set (groove at the bottom) looks like the typical setup - two very thin rings with the larger squiggly looking ring between them. There does seem to be a lot of gap between them ... maybe they are the wrong rings?
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
they told me there is suppose to be another ring just below it(two thing rings with squiggly ring) so that the open end of the rings doesnt get out of place..
It can only be one of two options:
Either the oil rings are wrong (3mm ring pack instead of 3/16")
OR if the wristpin protrudes into the oil ring groove then you're missing what's
called the oil rail support which gets installed first and rests on the bottom of
the groove...then proceed w/expander and lower and upper oil rings...offset
of coarse.
Either the oil rings are wrong (3mm ring pack instead of 3/16")
OR if the wristpin protrudes into the oil ring groove then you're missing what's
called the oil rail support which gets installed first and rests on the bottom of
the groove...then proceed w/expander and lower and upper oil rings...offset
of coarse.
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
which one is needed for a Diamond Piston 11519? these are the specs on the site
LS1 Street/Strip - Flat Top
• Lightweight forging
• Small nitrous applications
• Offset wrist pins for quiet operation
• Ratios figured for -.010"(positive) deck@9.240"
• Standard 1.5mm x 1.5mm x 3.0mm ring package
• Premium 8620 pins included
• Gasket volume = 11.8cc
• Top ring down = .210" to .250"
• Valve relief depth = .165" intake and .107" exhaust
11519
Diamond Pistons LS1 Forged Flat Top Piston set w/ -2cc Valve Reliefs, 4.030" BORE / 4.000" Stroke / 6.125" Rods / 1.125" Comp Height / .927 x 2.500 Wrist Pins Included
LS1 Street/Strip - Flat Top
• Lightweight forging
• Small nitrous applications
• Offset wrist pins for quiet operation
• Ratios figured for -.010"(positive) deck@9.240"
• Standard 1.5mm x 1.5mm x 3.0mm ring package
• Premium 8620 pins included
• Gasket volume = 11.8cc
• Top ring down = .210" to .250"
• Valve relief depth = .165" intake and .107" exhaust
11519
Diamond Pistons LS1 Forged Flat Top Piston set w/ -2cc Valve Reliefs, 4.030" BORE / 4.000" Stroke / 6.125" Rods / 1.125" Comp Height / .927 x 2.500 Wrist Pins Included
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
and here is the best pic i have of the wrist pin and the oil ring .... it does have a gap there where u can easily see the rings....So im asumming i need the oil rail support?
Last edited by txh0tb0i972; Oct 12, 2011 at 10:49 PM.
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the engine together ????? If you bought the 3/16" oil rings then they didn't
fit w/ expander because 3/16>3mm...also the 1/16" compression ring won't
fit where a 1.5mm groove is...hard to tell from pics but my guess is correct
rings missing expander. That thing had to smoke and detonate like crazy.
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Verdad Gallardo Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
smoked like u walked into a pot heads house! but i didnt not put it together I paid to get it put together and went down hill..... now its getting rebuilt due to a broken rod which was due to a non tighten rod bolt.....
where can i get the expander or the rail support?
where can i get the expander or the rail support?
