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  1. #1

    Join Date
    Jan 2019
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    United States
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    Honda

    unusual piston ring for GXV 140

    In my previous post, I was debating on rebuilding the GXV 140 on my harmony mower. I went ahead and dove into it after finding a NOS crank and connecting rod, and being able to hone out the block and get all the scratches out. I purchased a handful of parts...so far, I'm only out around $50 or so in parts, and I'm gaining some education on how to do this. I ordered new rings, Genuine Honda rings, part number 13610-ZG9-003. The oil ring looks completely different from the one that came off. For lack of a technical term, The "zig-zags" of the original one go up and down in relation to the piston, and are much smaller than the oil ring I got with the ring kit, where the "zig zags" go in and out. Also, the two ends are labeled red and green, what does that mean?
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  3. #2

    Join Date
    Nov 2014
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    10,396
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    Australia
    Mower
    Victa slashers & Push , Rover Rancher II's, Cox ( several ) & White LT120 + GT 200

    Re: unusual piston ring for GXV 140

    Quote Originally Posted by av-geek View Post
    In my previous post, I was debating on rebuilding the GXV 140 on my harmony mower. I went ahead and dove into it after finding a NOS crank and connecting rod, and being able to hone out the block and get all the scratches out. I purchased a handful of parts...so far, I'm only out around $50 or so in parts, and I'm gaining some education on how to do this. I ordered new rings, Genuine Honda rings, part number 13610-ZG9-003. The oil ring looks completely different from the one that came off. For lack of a technical term, The "zig-zags" of the original one go up and down in relation to the piston, and are much smaller than the oil ring I got with the ring kit, where the "zig zags" go in and out. Also, the two ends are labeled red and green, what does that mean?


    That is the spacer for the oil scraper ( bottom ring ) and the shape of it is inconsequential .
    All it has to do is hold the thin scrapers apart and square to the piston/ bore.
    We all get taught to fit each part with the gap separated by 120 deg, but they rotate in service so I have never seen the logic in doing this and it makes them harder to install.
    AFAIK there is no difference as to how the spacer goes in so the paint markings might ( I don't know definately ) just be for identification as it is hard to write on the spacer
    Much the same as colour coding on springs.
    OTOH the upper & lower compression rings should be marked top

  4. #3

    Join Date
    May 2010
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    5,589
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    Illinois
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    kioti/rhino finish mower

    Re: unusual piston ring for GXV 140

    The difference oil compression ring could be due to a part supercessions. The paint on the ends of the ring basically are there to make sure that you don't overlap them when you install it.
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  5. #4

    2,500 Post Club

    Join Date
    Jul 2013
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    Georgia
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    2010 simplicity broadmoor 46" deck 20hp vanguard

    Re: unusual piston ring for GXV 140

    https://www.hondapartsnation.com/oem...v_series/parts

    check out these parts for your GXV140 engine, you can contact these folks with all numbers from your mower & engine, making sure you have correct rings etc. for rebuild.

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