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Thread: Oil leak

  1. #1
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    So my ScG has developed an oil leak from the rocker box on the rear cylinder. Not a bad one, but a leak none-the-less. I'm friends with a HD tech who is going to help me change out the gaskets on both cylinders. My question is to people who have done this before : Do you have any preference as to a gasket brand?

  2. #2
    Senior Member lunaticfringe's Avatar
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    matt: supposedly the stock H-D available top end gasket sets are new and improved pieces for the rocker boxes. having said that, you can't go wrong with either Athena, Cometic, or James.

  3. #3
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    I got new gaskets from HD about 6000 miles ago, and haven't seen a leak yet.

  4. #4
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    I have the exact same leak/problem. I just have to get around to rotating my engine and doing it. In for gasket suggestions.

  5. #5
    Senior Member rchuff's Avatar
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    just make sure the surfaces are oil free when reassembling boxes. i used hd gaskets and no problems.

  6. #6
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    I did my rear one at the beginning of this summer. Didn't rotate the engine. It's like a puzzle but you can do it. No leaks since. The new gasket is a lot thicker.

  7. #7
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    Wow! I would like to see a write up on the no-rotation rear gasket swap. Not saying i don't believe you just would like to see how you did it.

  8. #8
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    There is no way to remove rear rocker cover on a factory XB without rotating the engine.
    HD Parts, new gasket is thicker and stiffer, black in color vs the old orange part.

    HD/ Buell Part # 17362-07B Gasket, Rocker cover. Outer perimeter gasket, HD/ Buell Part # 17695-07B Gasket, rocker cover. Inner gasket. Outer is $6.55 each, inner is $1.75, Total with Texas tax was $17.97

  9. #9

  10. #10
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    I guess you didn't try hard enough.

    I had to grind down an allen wrench to fit under the cross braces to unscrew the top 4 bolts. Once I got them out, I pulled the old gasket out, it was ripped at the back left corner (where all the oil was leaking). There wasn't enough room to pull the rockerbox cover all the way out but I could lift it up enough to wiggle the new gasket over top of the cover and into the groove. Screwed the bolts back in and put the rest of the plastic parts on. Bam, no leaks all summer.

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