Ring endgaps and their correct postioning - Team Camaro Tech
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post #1 of 4 (permalink) Old May 4th, 04, 01:56 PM Thread Starter
Join Date: Dec 2003
Location: Atlanta, Ga.
Posts: 17

Now i am totally confused. I have read 4 different opinions of where the best positioning of the piston ring end gaps should be placed around the axis of the piston, now i get out the instruction sheet that came with my rings and they say something altogether different again. The instructions with the rings say that the top and second end gaps are directly opposed but that the oil ring end gaps, while not lined up with each other, should be postioned on the same side of the piston...HELP!!!!

I used to wonder....now I too, just don't know.
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post #2 of 4 (permalink) Old May 4th, 04, 05:25 PM
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Join Date: Dec 2000
Location: Kentwood, MI
Posts: 8,097

Can't find any notes on the subject, but as I recall, the top oil ring goes one inch to one side of the oil rail gap, the bottom oil ring goes one inch the other way.

The compression rings do get put opposite each other, but honestly I don't think its that big of a deal because they rotate in the groove anyway.

Ever pulled a motor apart and found the rings in the same spot you installed them? I haven't. Just follow the directions that came with your pistons and I'm sure you'll be fine.

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #3 of 4 (permalink) Old May 5th, 04, 02:26 AM
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,288

Ditto what Eric said,
I have seen 3 or 4 different positions depending on the ring manufacturer etc. YOu can't go wrong following the directions for your rings.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md
1971 Chevelle "Heavy Chevy" original owner

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post #4 of 4 (permalink) Old May 5th, 04, 04:24 PM
Join Date: Apr 2000
Posts: 21,341

Both of the guy's are right!

But all I did was just make sure none of the ends were on top of one another b/c I blow-torched a piston b/c the ends were stacked on one piston in my old '64 Ford fairlane S/W's 221", V-8 motor, (was supposed to have been a 260"er, but??), years ago and had to put the 221"er back in it out of my old '63 Merc. Meteor..

Years later, I did a dingle-berry, shade-tree, $150 overhaul to the old 260"er and ran her another, (I kid you not), 100,000 miles more just a putzzing around!! Heck, it had at least 117,000 miles on it then b/c it only showed 17,000.. Might a been 217,000??

Loved that old Wagon!!



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