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  1. #1
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,907

    Default Looking for a piston ring

    I want to replace a one piece, iron oil scraper ring with a multi-piece steel type.
    It's for a single cylinder motorbike engine.

    Dimensions are to suit cylinder bore size of 87mm, ring groove height 5/32", depth of groove a bit over 5/32".

    Are there suggestions for suppliers?

  2. #2
    Join Date
    Dec 2007
    Location
    Adelaide
    Posts
    586

    Default

    Not sure if JP Pistons in Windsor Gardens, Adelaide is still operating, some years back they made me a set of rings for a Honda S600 Roadster.
    Back in the day when I was playing around with bikes multi-segment rings were known as Cord rings, maybe do a search for Cord ring set.

  3. #3
    Join Date
    Apr 2018
    Location
    Perth
    Posts
    168

    Default

    Try HB sales 27 Church st Perth 6000 (08) 93283043

  4. #4
    Join Date
    Dec 2005
    Location
    South Australia
    Posts
    1,660

    Default

    JP are still in business brings back memories, quite some years ago they were the only company in Australia or the UK who could supply standard size pistons for a Cortina I was rebuilding

  5. #5
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,907

    Default

    Thanks familyguy & China.

    I won't deal with JP as they gave me wrong info in the past so I wasted money.

    I have some Cord rings that I bought for another bike. They look like a stack of compression rings with rounded edges, that work as a wiper (oil control) ring.
    That's not the style I'm looking for now. Do Cord also make rings with top & bottom chromed rails and seperator between them?

  6. #6
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,907

    Default

    Quote Originally Posted by Sparksy View Post
    Try HB sales 27 Church st Perth 6000 (08) 93283043
    Thanks Sparksy,

    The landline phone number has been disconnected, now they are using moble number 0411 864 249.

    George at HB Sales had a look and could only find a ring that is a different design from what I'm after. It is solid, similar to an iron ring but with a groove behind where a spring resides.
    I might still get it if I can't find one with two separate rails and an expander between them.

    Jordan

  7. #7
    Join Date
    Jul 2008
    Location
    near Warragul, Victoria
    Posts
    3,736

    Default Rings

    Used to be a few specialist firms making piston rings. I found this one with a quick google search.

    Products | Phoenix Piston Rings | Clayton North | 03 9544 9169

  8. #8
    Join Date
    Apr 2018
    Location
    Perth
    Posts
    168

    Default

    Quote Originally Posted by nadroj View Post
    Thanks Sparksy,

    The landline phone number has been disconnected, now they are using moble number 0411 864 249.

    George at HB Sales had a look and could only find a ring that is a different design from what I'm after. It is solid, similar to an iron ring but with a groove behind where a spring resides.
    I might still get it if I can't find one with two separate rails and an expander between them.

    Jordan
    Good to hear HB sales are still going. They were extremely helpful when I was rebuilding a couple of 1970's Aquascooters about 20 odd years back. had the odd sized rings for the piston in stock.

    Like this one.
    Attached Images Attached Images

  9. #9
    Join Date
    Aug 2010
    Location
    Toorloo Arm, VIC
    Age
    39
    Posts
    1,307

    Default

    Quote Originally Posted by nadroj View Post
    I might still get it if I can't find one with two separate rails and an expander between them.

    Jordan
    If you're talking about this type:

    phOilring1.jpg

    I've got some here as part of a set that were supplied with a set of pistons made by (from memory, I didn't get them done) this mob in Dandenong: https://specialpistonservices.com/

    They mention bikes on their website, so might be able to source the size you want.

  10. #10
    Join Date
    Oct 2004
    Location
    Southern Highlands NSW
    Posts
    1,907

    Default

    Thanks for the tip, J&H.

    Yes, that's the 3 piece ring I want.

    This firm says they can supply a ring in the required size: https://www.autosurplus.com.au/

    I ordered it and a scraper ring for the second groove.
    Hopefully my old 4 stroke banger will use less oil than a 2 stroke in future.

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