should i put new rings on used cylinder walls???? - Team Camaro Tech
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post #1 of 6 (permalink) Old Jan 13th, 01, 12:16 PM Thread Starter
 
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need to know if it needs to be bored agian before putting new rings and pistons cause it has 20,000 miles and has a little wear on the cylinders not for sure if im going to put new rings yet because its a 400 small block and is already bored 30 over so dont wanna go no more so might end up using same pistons dunno thanks for the help
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post #2 of 6 (permalink) Old Jan 13th, 01, 02:09 PM
 
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If you re-ring the motor you NEED to give the cylinders a hone. If you don't the rings will NOT seat. Double check your piston to wall clearance before honing cause the bores maybe worn. If they are worn then a new hone will enlarge them even more with piston rock/slap as a result. Not good!

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post #3 of 6 (permalink) Old Jan 14th, 01, 05:31 AM
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May not need to be bored but definately hone it!

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post #4 of 6 (permalink) Old Jan 14th, 01, 06:08 PM
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Probably should talk to a good machinist, have him look at the cylinders if possible. Today's moly rings work well on a smooth wall. Standard steel rings might need a quick hone. If you can still see the hone marks in the cylinders, and you might, you might have a very good surface for the moly rings.
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post #5 of 6 (permalink) Old Jan 14th, 01, 08:46 PM
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Lots of good info here: http://www.hastingsmfg.com/service_tips.htm

Looks like you should use a hone or glaze breaker to insure proper break in of the rings.
David

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post #6 of 6 (permalink) Old Jan 15th, 01, 08:16 PM
 
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I echo the comments of the others, you need to hone the cylinders in order for the rings to seat properly. It is a must.
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