Primary oil drip
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Tourer
Joined: Oct 2014
Posts: 398
Likes: 35
From: canada
Primary oil drip
Every time I come back from a ride I notice 2 small oil spots about the size of a dime under the primary and back around the rear pipe cover the following morning.I believe its not engine oil, I use the syn3 in motor and HD tranny and primary in the other 2 holes. Ive got warranty but just wondering how dealer will be able to tell without changing a lot of gaskets and seals?
Last edited by RKC1965; Jun 30, 2018 at 04:40 PM.
Road Master
Joined: Dec 2010
Posts: 1,049
Likes: 264
From: Fresno Ca
First check the drain plug and outer primary gasket to get the easy stuff out of the way. The most common place for it to be leaking from after that is the inner primary seal where the trans shaft comes through the back of the inner primary. It could also be the shift shaft seal on the trans or the trans seal behind the front pulley. The best way to find it is to lay on the floor with a mirror and flashlight and really inspect the area. It helps if you have a jack to raise it up
Seasoned HDF Member
Joined: Sep 2005
Posts: 5,072
Likes: 104
From: Prescott, AZ
Oil drips can be a real bitch to find - oil travels and can fool even the best - I had a leak on my 04 that drove me nuts until I found where the clutch cable rubbed a hole in it... Now of course yours does not have that cable - if possible - CLEAN the engine than run or ride easy and try to get the oil to leak then follow back... good luck, is it under warranty?
Club Member
Joined: Mar 2009
Posts: 66,126
Likes: 51,458
From: Niles Canyon Ca.
You get a small bright light and a wand mirror and do some squinting, anyone with half a clue will track a leak before just ripping into ****. At face value mine looked like an inner primary or trans seal leaking, using said procedure I tracked it to a bubbling head gasket. Wipe it down particularly underneath, ride it and get busy looking.
Grand HDF Member
Joined: Mar 2011
Posts: 4,816
Likes: 1,320
From: Good roads, cold beer
Every time I come back from a ride I notice 2 small oil spots about the size of a dime under the primary and back around the rear pipe cover the following morning.I believe it’s not engine oil, I use the syn3 in motor and HD tranny and primary in the other 2 holes. I’ve got warranty but just wondering how dealer will be able to tell without changing a lot of gaskets and seals?
May need to fire the bike or ride a little after applying, then let sit, it should help you find where the leak is at.
Thread Starter
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Tourer
Joined: Oct 2014
Posts: 398
Likes: 35
From: canada
Oil drips can be a real bitch to find - oil travels and can fool even the best - I had a leak on my 04 that drove me nuts until I found where the clutch cable rubbed a hole in it... Now of course yours does not have that cable - if possible - CLEAN the engine than run or ride easy and try to get the oil to leak then follow back... good luck, is it under warranty?
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Road Master
Joined: Sep 2016
Posts: 1,048
Likes: 492
From: Heart of Georgia
Before you do anything check the torque on the outer primary. If the outer primary gasket is leaking you should be able to run your hand along the seam and feel where it’s seeping out.
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