"O" rings between inner and outer primary covers?
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Stage III
Joined: Feb 2008
Posts: 3
Likes: 1
From: West Palm Beach, Florida
"O" rings between inner and outer primary covers?
I was checking my primary chain the other day and noticed something hanging down from one of the "towers" that the long bolts go through. I touched it and it stuck to my finger. It was a broken "O" ring. I got it out and looked at the other tower. It had a loose broken "O" ring hanging from it also. I got both of them out but really couldn't find out where they came from. They were about 1/2" in diameter. There's no leaking problem and it appeared they were both just hanging there waiting for someone to find them. I bought the bike used and the previous owner put chrome inner and outer covers on and installed after-market forward controls. I don't know if the covers are HD or after-market. The bike is a 2003 FXD and I've put about 20k miles on it since I bought it. Is this something I should worry about? I'm going to Sturgis and have replaced tires, battery, cables, spark plugs and wires so I really don't want to break down for something so stupid.
Any help will be highly appreciated.
Any help will be highly appreciated.
Outstanding HDF Member
Joined: Jan 2010
Posts: 2,030
Likes: 195
From: Harford Co., Maryland
Might want to replace the primary gaskets. Should be able to pick up as a set or by part number from a dealer.
Tower gasket (part number 63869-06)
Primary cover gasket (part number 60547-06)
Derby Gasket (part number 25416-99C)
Edit: Tower and Primary gasket part numbers are for '06 and up Dynas
Tower gasket (part number 63869-06)
Primary cover gasket (part number 60547-06)
Derby Gasket (part number 25416-99C)
Edit: Tower and Primary gasket part numbers are for '06 and up Dynas
Last edited by Cowpokey; Jul 15, 2010 at 11:55 PM. Reason: Part numbers for '06 + Dyna
Thread Starter
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Stage III
Joined: Feb 2008
Posts: 3
Likes: 1
From: West Palm Beach, Florida
I think "Cowpokey" has correctly identified the part, tower gasket, that I'm looking for. Oh well, time for a trip to the Stealer.
Thanks guys!
Cruiser
Joined: Feb 2010
Posts: 176
Likes: 1
How many miles have you put on this bike yourself? Have you noticed any oil leaks? I know you said there wasn't but, I would look again. It there any sign of oil leaking past the bolts that you are looking at? I am guessing that the old "O" rings have come from someplace else during a maint. procedure and you have just found them. Not exactly sure what you mean by "towers". Do you have the capacity to post some pictures to better explain what exactly you are looking at?
Outstanding HDF Member
Joined: Jan 2010
Posts: 2,030
Likes: 195
From: Harford Co., Maryland
"Towers" are inside the primary, it's where the mid control shift linkage goes through, at least in one example.
Ultimate HDF Member
Joined: May 2008
Posts: 6,642
Likes: 48
From: Ogden, UT
Those o-rings go between the outer and inner primary on the long inspection plate bolts, not sure how they would fall out unless you removed the outer primary cover. Just unbolting the inspection plate will not dislodge them, at least not in my experience.
Only way to put them back in is remove the outer primary, since I doubt you could squeeze them in between the two..
Only way to put them back in is remove the outer primary, since I doubt you could squeeze them in between the two..
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