Buell Puking Oil Out Front Cyl Breather - Harley Davidson Forums: Harley Davidson Motorcycle Forum
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post #1 of 14 (permalink) Old 12-06-2012, 09:29 AM Thread Starter
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Buell Puking Oil Out Front Cyl Breather

My son rides a '03 XB12S. He had the engine rebuilt a couple of years ago. It's now blowing a significant amount of oil out the breather on the front rocker cover. I suspect a ring or piston problem. Is there anything we should check before I talk him into pulling the engine? He's pretty frustrated and is talking about selling the bike in it's current condition but I'm trying to tell him we can fix it and he can sell it for more money. He's been thinking about selling it and getting a cruiser anyway but I don't think he will get much out of it the way it is.

thanks, dozer
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post #2 of 14 (permalink) Old 12-06-2012, 09:43 AM
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Bad umbrella valve?

Leave the gun. Take the cannoli.



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post #3 of 14 (permalink) Old 12-06-2012, 10:05 AM
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Umbrella was my guess as well, since it's only doing it from one cylinder.

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post #4 of 14 (permalink) Old 12-06-2012, 10:07 AM
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.................drain obstruction??
Scott

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post #5 of 14 (permalink) Old 12-06-2012, 10:08 AM Thread Starter
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Umbrella valve? Easy fix?

later, dozer

p.s. thanks fellers
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post #6 of 14 (permalink) Old 12-06-2012, 10:13 AM
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Should be as easy as pulling the rocker box cover.

Cylinder Head Rocker Box

Leave the gun. Take the cannoli.



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post #7 of 14 (permalink) Old 12-06-2012, 10:21 AM
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Quote:
Originally Posted by Hillsidecycleco View Post
.................drain obstruction??
Scott
Maybe....Oil drains pushrod tubes for the most part.

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post #8 of 14 (permalink) Old 12-06-2012, 10:34 AM
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Quote:
Originally Posted by misinlink View Post
Should be as easy as pulling the rocker box cover.

Cylinder Head Rocker Box
To repair: You'll need to pul. the top cover, AND the rocker arms, and second "slice" portion.

Regasketing the entire top end of the rockler boxes. If you pull JUST the cover on the front, you can check to see if it's all good.

If not, removing the rest will be necessay, since you have to pull the umbrella through the rocker plate.

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post #9 of 14 (permalink) Old 12-06-2012, 10:39 AM Thread Starter
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Thanks for the link, link but the Buell is a little different. It actually has a PCV valve, we'll try changing that and I'll let ya'll know.

later, dozer

p.s. at least your link gave me some idea where to search
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post #10 of 14 (permalink) Old 12-06-2012, 10:49 AM
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Sorry, but that looks like an easier fix / check as they appear to fit into the top of the rocker boxes.
I'm sure Dave or Schmidtys will correct me... s

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