File fitting rings today...?
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File fitting rings today...?

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    Senior Member XClutchboy725's Avatar
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    Default File fitting rings today...?

    Question:

    I'm file fitting a set of Mahle rings today. There are 2 distinctly different colors of rings. I believe one is moly coated ductile iron and the other is cast iron. Which color is the top and which color is the bottom? Is the coated one the darker of the two?

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    Senior Member VAMI's Avatar
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    The moly ring is always top.Dots go up if they have dots.

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    Senior Member XClutchboy725's Avatar
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    Thanks, and just to clarify... The Moly ring is the darker colored one?

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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by XClutchboy725 View Post
    Thanks, and just to clarify... The Moly ring is the darker colored one?
    The "darker" ring is the iron ring, if you look closely the moly filled ring is silver with the darker iron edges.

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    Senior Member XClutchboy725's Avatar
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    Thanks Barry! Whew... I almost did that wrong.

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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by XClutchboy725 View Post
    Thanks Barry! Whew... I almost did that wrong.
    Ok,, most companies package the ring to show "top" and "2nd", but that isn't always the case. Most rings will have "dots" on the top, or the instructions will show which way they go in. You will notice a very distinct difference in hardness when you file the rings, I suggest doing the darker iron 2nd rings first, since they are softer and require less work to file. That way you don't get used to the amount of work it takes to cut the moly top ring, and then get over zealous and cut too much off the iron rings before you realize what you have done.

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    Senior Member XClutchboy725's Avatar
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    That sounds like a good plan. Thanks again!

    Jeff

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    LP-25.com Infomaniac's Avatar
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    If no dot the inside bevel up for the top ring and inside bevel down for the second ring.

    Dark ring in the second groove as indicated above.

    I file all the top rings first and push them down in the hole. Then do the second rings and leave them up top.

    That way when puttings the rings on the pistons, you grab the second ring out of the hole first.

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    Senior Member XClutchboy725's Avatar
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    All Done! 4.471 bore with ring gaps at Top= .022 Bottom= .024

    No nO2 for me!

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by XClutchboy725 View Post
    All Done! 4.471 bore with ring gaps at Top= .022 Bottom= .024

    No nO2 for me!
    open that top up to say 30

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    Senior Member XClutchboy725's Avatar
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    Quote Originally Posted by IMPATIENT 1 View Post
    open that top up to say 30
    LOL! I'm keeping my mouth shut! He did all I asked him to do to make it right.

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