Help finding what is leaking - Page 2 - Harley Davidson Forums: Harley Davidson Motorcycle Forum
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post #11 of 41 (permalink) Old 09-09-2019, 05:33 PM
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Run fingers under oil line fittings coming out case, under cam chest, under air cleaner
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post #12 of 41 (permalink) Old 09-09-2019, 07:21 PM
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Different size mirrors and a flashlight will work too ...

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post #13 of 41 (permalink) Old 09-09-2019, 11:15 PM
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Likely coming from the air cleaner. Could have a loose breather hose.

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post #14 of 41 (permalink) Old 09-10-2019, 12:06 AM
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Looking at the picture and unless hes just cleaned the bike, the oil is not coming from the air cleaner. If it was, it would most likely be all over the side of the bike as well and he would have some serious crankcase breather issues if that much oil was running through the A/C.


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post #15 of 41 (permalink) Old 09-10-2019, 11:51 AM
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I agree with Jason. I had one of those leaks on my last bike that made me crazy trying to pin it down. Turned out to be a leaking shaft seal or bearing between the primary and crankcase.

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post #16 of 41 (permalink) Old 09-10-2019, 11:51 AM
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From my un-experienced view.. it feels like oil. It accumulates on the bottom of the right side of the frame. Where it eventually leaks to the ground. I can run my fingers along the bottom of the frame, and feel it, to me it feels like oil.




Wish I had a lift of some kind, someway to jack the bike up high enough. It was all I could do with the help of my phone camera, getting to the drain plug for the transmission when I changed it out the other day. I've tried what I could do to look on the underneath of the bike. Feel like wherever this leak is, it's something to the right side of the bike, don't appear to be anything directly on the bottom of the bike leaking.
Suspect #2?

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post #17 of 41 (permalink) Old 09-10-2019, 11:57 AM
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Looking at the picture and unless hes just cleaned the bike, the oil is not coming from the air cleaner. If it was, it would most likely be all over the side of the bike as well and he would have some serious crankcase breather issues if that much oil was running through the A/C.


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Actually, if you look closely, there isn't a huge amount of oil on the floor. I could easily see that running across the cam cover and down, especially if it accumulated in the bottom of the AC cover until the bike is parked and leaning slightly to the left. I just found a similar drip on my EVO which prompted me to re-route the breather hose away from the AC (not sure why I hadn't done this already).

Of course the real answer is to clean everything up and go for a ride then watch with a good flashlight to trace the oil to it's source. This really isn't rocket surgery.
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post #18 of 41 (permalink) Old 09-10-2019, 12:09 PM Thread Starter
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Quote:
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Suspect #2?
The leak appeared before changing out the transmission oil.



Quote:
Originally Posted by <G Man> View Post
Actually, if you look closely, there isn't a huge amount of oil on the floor. I could easily see that running across the cam cover and down, especially if it accumulated in the bottom of the AC cover until the bike is parked and leaning slightly to the left. I just found a similar drip on my EVO which prompted me to re-route the breather hose away from the AC (not sure why I hadn't done this already).

Of course the real answer is to clean everything up and go for a ride then watch with a good flashlight to trace the oil to it's source. This really isn't rocket surgery.

I have tried this. But I've heard some good suggestions here, to help me try and take a closer look.
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post #19 of 41 (permalink) Old 09-10-2019, 01:26 PM
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My guess is, judging from where that oil spot on the floor is, it's residual oil from filter changes. The oil runs down the case and clutch cable and dribbles from the lowest spot on that side of the engine !
I would go to the car wash and pressure wash the underside of the frame and get everything nice and clean for once, then see if the oil spot on the floor returns.
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post #20 of 41 (permalink) Old 09-10-2019, 08:44 PM
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^^^^^^^^^ No matter how careful I am when changing the oil filter, it never fails that oil "spills" below the filter and gets all over. For about a week I have drip marks on the floor.


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