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Old 08-27-2006, 08:59 PM
Jay Jay is offline
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carbon ring

My 83- 617engine has about a half inch carbon ring at the top of the cylinder. Is this a problem that I should address before reinstalling the head? If so, how do I remove it without scratching the cylinder liner? Thank, Jay

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Old 08-27-2006, 09:03 PM
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Normal deposit on a diesel, and indeed a lot of gas motors.
As long as it is not so thick it's not flaking off, leave well alone...removing it can and does drop some down into the first ring land area.

Only real reason to remove it is if you are pulling the pistons out.
Blow out the cylinders with compressed air or a vacumm cleaner and instal gasket and head.



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Old 08-27-2006, 09:07 PM
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That ring is from the distance between the top of the piston and the first fire ring. Normal as long as it's not a really big lip.
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Old 08-27-2006, 09:12 PM
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Leave it alone unless you are removing the pistons. fyi - AutoZone loans out a "ridge reamer" which is the tool used to remove it prior to removing the pistons.
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Old 08-27-2006, 11:11 PM
Jay Jay is offline
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Thanks, friends. I'll leave it alone. Jay

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Thank you, Jay
83MB 300D 241K "The silver coffin"
10 Prius lll 1K
95 MB E300D 120K Mable
02 Saab 9-5 Areo 131K
Cannondale SR500
www.thecornerstonefamily.org/
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