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[RG13]

I have a 2013 RG CVO with just under 7,000 miles.  I'm noticing an oil seepage at a seam underneath the rear jug.  It's the area btw the rear jug and tranny.  There's a seam there that joins two cases.  I cleaned it the other day with Brakleen and after I took a ride about 30 miles it was wet again.  Has anybody had this issue and what should I do?  Does fixing this mean that the whole motor has to be torn down?  Any info would be appreciated.

[Ironhorse]

Can you post a picture?

Just trying to determine if the leak is from the base gasket of the rear cylinder and it's running down to the area between the engine and tranny, or if it is leaking from somewhere else.

[RG13]

I'll have to post the picture later on today.  I'm at work.  However, I think you're right, it might be coming from the base gasket of the rear cylinder and seeping to were this "seam" is.  It's not like it's dripping oil and leaving a puddle.  It has a wet look.  I'll post the pic tonight.  Thanks

[Fired00d]

I think I know the area you are speaking of... it is where the transmission and motor meet. I have seen what you are describing in the area I mentioned on my bike. When I inquired about it I was told there is nothing (fluid storage) in that area but don't remember exactly what I was told the reason for this issue was.


 
Ride Safe,
Fired00d
 

[RG13]

I will definitely post a pic of it tonight so you guys can see exactly where it is.

[grc]

The older Twin Cams had no fluid in that area between the trans case and the engine cases, but often displayed that same wetness at the seam.  It usually went away after cleaning it thoroughly a couple times, and I'm not sure anyone ever came up with a definite reason for it being there.  It could be slight weeping from the base gasket of the rear cylinder, or it could be oil left on the interior surfaces from manufacturing that wick to the surface (there is no gasket).  It could even be mist from the breather hose for the trans.

On late model Twin Cams the external oil lines from the engine to the oil pan were eliminated and replaced with internal passages that DO run between the trans and engine cases.  I've never heard anyone say they had an actual leak from those, but I just mention it as a possibility if you find no evidence of seepage from the base gasket and the wetness persists after cleaning it well.

Jerry

[RG13]

Thanks Jerry.  I do think that it's coming from the base gasket.  I will take a picture of it tonight.  I should have posted a pic with my original post.  Will definitely get the pic up tonight so you guys can see it.  Thanks again...

[Twolanerider]

I think I know the area you are speaking of... it is where the transmission and motor meet. I have seen what you are describing in the area I mentioned on my bike. When I inquired about it I was told there is nothing (fluid storage) in that area but don't remember exactly what I was told the reason for this issue was.


 
Ride Safe,
Fired00d
 

Not the same on the newer bikes Dood.  What used to be done what are a pair of external oil lines is now done internally. So that harmless vapor collection that we would see no longer is the case.

[Fired00d]

Not the same on the newer bikes Door.  What used to be done what are a pair of external oil lines is now done internally. So that harmless Vapor collection that we would see no longer is the case.

Ahhh, ok.

 
Ride Safe,
Fired00d
 

[Twolanerider]

Ahhh, ok.

 
Ride Safe,
Fired00d
 

It's ok.  I still love ya man  !

[Fired00d]

It's ok.  I still love ya man  !

Thanks, and back atcha

 
Ride Safe,
Fired00d
 

[RG13]

These  are a couple of pics of the oil leak.  Notice that a little of the powder coating peeled off just below the cylinder and the wet spot is below that.  What do you guys think?  Is it the base gasket?

[RG13]

Here is one pic

[RG13]

Here is the 2nd pic.   Again, is it the cylinder base gasket.  If you look at the picture above this one, the powder coating is peeled off and below that is what looks like an oil leak.  Note, that I cleaned this area of any oil, took it out for a 30 mile ride and the wet spot appeared again.