Crankshaft seal
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Stellar HDF Member
Joined: Feb 2007
Posts: 2,558
Likes: 280
From: Russellville, Arkansas
Crankshaft seal
1998 Ultra.....135,000 miles
Anyways.....been having a little clutch slippage and difficulty finding neutral. Engine oil a little low as well....it’s not burning or leaking.
Today, I removed the primary inspection cover and oil poured out. It was not overfilled during the last service.....approximately a quart.
I’m thinking the crankshaft seal has failed. I’ve never had one go bad before of all the Harleys I’ve ever owned. It is the original on this bike.
Anyone else had these fail?
Anyways.....been having a little clutch slippage and difficulty finding neutral. Engine oil a little low as well....it’s not burning or leaking.
Today, I removed the primary inspection cover and oil poured out. It was not overfilled during the last service.....approximately a quart.
I’m thinking the crankshaft seal has failed. I’ve never had one go bad before of all the Harleys I’ve ever owned. It is the original on this bike.
Anyone else had these fail?
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,541
Likes: 6,413
From: Honah Lee
Make sure that sleeve in not grooved. Usually, it can be reversed for a new surface. Interesting but as the oil gets full of trash, it imbeds in rubber and grooves the steel. Softer material cuts harder material if there is any abbrasive material. Hence cast iron and copper lapping tools.
Last edited by Jackie Paper; Feb 2, 2020 at 06:30 PM.
Stellar HDF Member
Joined: Jul 2011
Posts: 2,583
Likes: 115
From: Boston, MA
One of the easier repairs to do yourself. Only thing to make sure is that the seal seats nicely.
You will get a dozen people to tell you to put the spring inside, you'll get a dozen more saying to face the spring outside.
You will get a dozen people to tell you to put the spring inside, you'll get a dozen more saying to face the spring outside.
Road Master
Joined: Jun 2018
Posts: 757
Likes: 366
From: Winnipeg
I had to tear down the primary to the stator-:then i drilled two tiny holes in the seal 180 degrees apart. Inserted 2 small sheet metal(?) screws i had kicking around- used vice grips to pull it out. It was tight- so i had to tap out with a small hammer on the vice grips.
lubed everything up- spacer and seal- and tapped in the new one with a small punch.
lubed everything up- spacer and seal- and tapped in the new one with a small punch.
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Stellar HDF Member
Joined: Feb 2007
Posts: 2,558
Likes: 280
From: Russellville, Arkansas
I’m probably gonna replace the seal anyways....even if it’s not the problem. It’s original and I’ll be in that area.
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janiharley
Primary/Transmission/Driveline/Clutch
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May 20, 2010 02:04 PM
