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Author Topic: oil leak dripping from bottom of primary  (Read 7176 times)

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rlundy

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oil leak dripping from bottom of primary
« on: June 21, 2020, 01:11:50 AM »

I have an oil leak on my 07 Ultra Classic CVO screamin eagle 110.  I have new inner primary housing with new hardware, main seal, new gasket.  Also new outer primary cover gasket.  New o-rings on drain plugs.  It leaks a good bit when on jiffy stand.  When on my lift straight up, it's not leaking.  Could it be a leak from oil pump, line,etc??
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cdulaney17

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Re: oil leak dripping from bottom of primary
« Reply #1 on: June 21, 2020, 07:05:00 AM »

Primary derby cover, where you fill the primary?

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cdulaney17

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Re: oil leak dripping from bottom of primary
« Reply #2 on: June 21, 2020, 07:11:15 AM »

Another thought is... Are you sure it's primary oil and not engine oil?

On a jiffy stands, the engine oil in the pan would slosh to the left and over the engine oil pan gasket.

Check the oil pan gasket too.

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scotman623

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Re: oil leak dripping from bottom of primary
« Reply #3 on: June 21, 2020, 12:12:32 PM »

Check bottom of primary derby cover first....
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Twolanerider

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Re: oil leak dripping from bottom of primary
« Reply #4 on: June 21, 2020, 12:39:01 PM »

Consider the entire system you're describing.  It does leak when leaning to the left on the kickstand, correct?  It does not lift when standing straight up on the lift, is that also correct?

If I read correctly and all other things are the same the only difference is where the fluid is when leaning versus where it's not standing up.  Derby cover gasket or ring.  And then only if you've got enough oil in it to reach that far.

That fluid is thin.  It can leak past the derby cover then drip off down lower and you'll not always notice it at the derby cover.  Plus you should always start any parts-swap troubleshooting with that which is easiest/cheapest first.  Derby cover qualifies there.  If the leak is there but the gasket doesn't fix it make sure the surfaces are flat.
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VANAMAL

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Re: oil leak dripping from bottom of primary
« Reply #5 on: June 21, 2020, 03:26:05 PM »

You can also take a look at the shifter seal. They were famous for leaking
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OBB

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Re: oil leak dripping from bottom of primary
« Reply #6 on: June 21, 2020, 05:24:02 PM »

You can also take a look at the shifter seal. They were famous for leaking

I've got that issue going on with the '12 I recently bought. Not looking forward to that repair bill. It's something that's out of my comfort zone to pull everything out of the primary just to get to it.
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Twolanerider

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Re: oil leak dripping from bottom of primary
« Reply #7 on: June 21, 2020, 08:20:12 PM »

I've got that issue going on with the '12 I recently bought. Not looking forward to that repair bill. It's something that's out of my comfort zone to pull everything out of the primary just to get to it.


That's not a terrible chore.  Be brave! 

Or...

Canton is about 825 miles from here.  Ride over and we'll do it at my place and drink beer(s)!!
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OBB

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Re: oil leak dripping from bottom of primary
« Reply #8 on: June 21, 2020, 08:33:55 PM »


That's not a terrible chore.  Be brave! 

Or...

Canton is about 825 miles from here.  Ride over and we'll do it at my place and drink beer(s)!!
If you were closer that would be great as I'd love to learn how to dig that deep into a repair like this. I did see a comp getting changed out at MV a few years ago and that was about enough to convince me that without a proper table lift, I'd rather not do it at home.

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Twolanerider

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Re: oil leak dripping from bottom of primary
« Reply #9 on: June 21, 2020, 11:52:44 PM »

If you were closer that would be great as I'd love to learn how to dig that deep into a repair like this. I did see a comp getting changed out at MV a few years ago and that was about enough to convince me that without a proper table lift, I'd rather not do it at home.

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Well balls !  And I was looking forward to beers  :huepfenlol2: .

You wouldn't be the first that's rode in here for free bike service.  How bad is the seal leaking?
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fastfreddy

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Re: oil leak dripping from bottom of primary
« Reply #10 on: June 22, 2020, 06:16:21 PM »

  :jack:   free bike service!?!$$!  note to self call don first  :2vrolijk_21:
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OBB

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Re: oil leak dripping from bottom of primary
« Reply #11 on: June 22, 2020, 07:19:48 PM »


Well balls !  And I was looking forward to beers  :huepfenlol2: .

You wouldn't be the first that's rode in here for free bike service.  How bad is the seal leaking?
More of an annoyance than anything right now. Enough though that it leaves a Nickle size spot on the ground after sitting at work for about 9 hours. I just stopped it off last night since I bought it about a month ago and it took maybe 4-5 oz. Emphasis on maybe.

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OBB

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Re: oil leak dripping from bottom of primary
« Reply #12 on: June 22, 2020, 07:20:34 PM »

  :jack:   free bike service!?!$$!  note to self call don first  :2vrolijk_21:
Now that's funny stuff right there.

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efrbc1

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Re: oil leak dripping from bottom of primary
« Reply #13 on: June 23, 2020, 09:03:35 AM »

When you have the seal changed, make sure you use a Cometic seal.  The HD seals are garbage.
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Twolanerider

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Re: oil leak dripping from bottom of primary
« Reply #14 on: June 23, 2020, 12:17:54 PM »

  :jack:   free bike service!?!$$!  note to self call don first  :2vrolijk_21:


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