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Old 03-25-2010, 02:45 PM
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Piston ring orientation

I am reassembling my zz4 this weekend I am using stock zz4 piston PN 10159436 and stock zz4 rings.
Does anyone know the orientation for the piston ring gaps I know that the top ring is 180 degrees from the second ring but what about the third set should the three gaps line up or should they be spread out.

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Old 03-25-2010, 05:07 PM
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Never line up gaps, even on the oil control ring. I stagger all the gaps about 180 degrees.

Vince
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Old 03-25-2010, 07:17 PM
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the two top rings should be 180 off from each other and the gaps should line up with each side of the wrist pins. The bottom three parts of the oil ring should be 120 degrees apart.
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Old 03-25-2010, 10:42 PM
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Just randomly spread them around. Once the engine has run a while they are constantly on the move.
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