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Old 04-08-2002, 04:40 AM
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Cool Trouble Installing Oil Rings

Guys I am slightly ashamed to admit it but while inserting the pistons in my 2.8 I snaged the oil rail of the oil ring and bent it on the way down. I have ordered rings for a single piston but I want to know what went wrong. I used a ring compressor and it apeared to be holding the rings back tight all the way around. I used lots of oil. And lightly raped on the piston with a hammer handel. All the other ones went in without a hitch. Any advise is appreciated.

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Old 04-08-2002, 02:34 PM
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Many machinists neglect to put a chamfer at the top of the cyl after honing, perhaps this is what happened to you. The Gods live in the details.
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Old 04-08-2002, 08:37 PM
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Remove one of the pistons that went in the bore with no problems, remove the oil rings and and then measure and compare the ring land groove diameter and width (of the good piston) and the problem piston. I have had problems in the past with pistons that had the ring land grooves machined incorrectly. This caused the same installation problem as you described. GOOD LUCK!
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Old 04-09-2002, 04:52 AM
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Cool

Thanks for the advise guys. I will look into it and see what I can discover.
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Old 04-10-2002, 02:30 PM
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And sometimes it just happens when everything is well planned and prepared. I spilled a martini the other night and there is nothing I know more about in life than a good martini!
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