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oil leak

francod123

francod123

Cruisin' Guzzisti
Joined
Aug 2, 2013
Messages
432
Location
Maryland
noticed some oil spots on my manifolds and saw that there was a tiny bit of oil on the cooling fins of my v7 stone. I just changed the oil and installed the sump extender. Maybe I put a little too much in there? It did shoot some into the air box which seems normal, but also the oil filter cover and some other spots around the crankcase had some oil residue. I basically put in 2.5L which the sump extender calls for, but perhaps a little too much. The oil leak from the cylinders has me worried though. I don't want to blow a gasket or something. Not sure what this could be and it just started after the oil change. Hard to tell exactly where it's coming from. Any insight is appreciated.
 
here's a photo of where it seems to be leaking, on both cylinders. right at the middle joint, and also some at the bottom of the last fin where it meets the engine. Could it be that both gaskets went bad or is it just a case of too much oil in the crankcase?
 

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A couple questions: How many miles on the bike...and which bike exactly. If it's super low mileage, did you re-torque the heads yet?

It is not normal to pump oil into the air box so I'd guess that you over filled at least a little. From what I can see in the photos I don't think your oil leak is serious....but then, I'm not riding the bike so I don't know how much is blowing back all over you and the bike. Just that the photos don't show me much oil. Even a teaspoon of hot oil can make a mess at highway speed. I have a Roadcrafter that will attest to that fact!

Peter Y.
 
pyoungbl said:
A couple questions: How many miles on the bike...and which bike exactly. If it's super low mileage, did you re-torque the heads yet?

It is not normal to pump oil into the air box so I'd guess that you over filled at least a little. From what I can see in the photos I don't think your oil leak is serious....but then, I'm not riding the bike so I don't know how much is blowing back all over you and the bike. Just that the photos don't show me much oil. Even a teaspoon of hot oil can make a mess at highway speed. I have a Roadcrafter that will attest to that fact!

Peter Y.
Click to expand...

Hey Peter,

It's a 2013 v7 Stone. Has about 3200 miles on it. Bought it brand new. I installed the sump extender when I did the the most recent oil change a couple months ago for the spring season. I basically just used the OEM recommended Agip Eni oil's container as my guide because it had measurements on the bottle. Perhaps I put "just that much" more into it than it needed. Not much blew into the air box, but then I noticed this leak from the fins. It is/was not much at all and it's not like there was oil going everywhere by any means. But, it did leave a few small splash marks on the exhaust manifolds which is what made me notice it. I just don't want to blow a gasket on the heads and have to deal with that crap. I feel like it's an overfill problem because both sides did it, which makes me think that it's not something initially faulty with the gaskets, etc.. Or perhaps it is just coincidence that they both needed to be addressed. One day you're more than excited about these machines and the next day you're a ball of anxiety and want to get rid of the stubborn sonofabitch! :)

And yes, the heads were re-torqued. I took it to the dealer for the 600 mile first service, when I had never worked on a bike before and had not yet researched or even belonged to this site for guide/info. I'm assuming the mechanic didn't overlook re-torquing the heads, although you never know...but it's a reputable place.
 
I would check the valve cover breather hoses, where they connect to the covers and at the airbox, along with the hoses themselves. Additionally, check the airbox drain connector on the left side under the side cover, especially since you recently removed the throttle body and likely unbolted/moved the airbox in the process.
 
makarushka said:
I would check the valve cover breather hoses, where they connect to the covers and at the airbox, along with the hoses themselves. Additionally, check the airbox drain connector on the left side under the side cover, especially since you recently removed the throttle body and likely unbolted/moved the airbox in the process.
Click to expand...


I'll give those a look as well, thanks for the tip.
 
I think I seem to have found the problem. The oil breather hose where it leads out the crankcase seems to be kinked a little bit right where it joins the two hoses behind the starter motor, because I see oil residue right at that union that looks fresh.
 
I need a section of that oil breather pipe (hose) to replace it because it is kinked. Went to my dealer, they didn't have it (they didn't even look, assholes). AF1 racing sells it but I'm not sure which one to order because there is no picture and the language is ambiguous.

I'm pretty sure it's this:

http://www.af1racing.com/store/Scripts/ ... duct=40809

It's a special oder item and it's $17, and it probably wouldn't get here for 2 weeks at least. There has to be somewhere locally to get some of this breather hose, which looks to be like 1/4in pvc. Any thoughts anyone?
 
Since you need to remove the hose anyway, take it to an auto parts shop and see if they can match it up. If that fails, find an old time hardware store (not the big chains) one of the guys there will probably do all that they can to match something up for you.
 
john zibell said:
Since you need to remove the hose anyway, take it to an auto parts shop and see if they can match it up. If that fails, find an old time hardware store (not the big chains) one of the guys there will probably do all that they can to match something up for you.
Click to expand...

Thanks john, I'll have to look into that. I'm sure the dealer had some but they're known for being assholes. He was just like "oh no, uh uh nah don't have it." I could smell the lack of interest or care in his breadth.

Anyway, for now I tried to uncrimp it a bit and then I put a screw style fuel hose clamp on there somewhat snug to help keep the shape round. We'll see how that goes. In the meantime I'll look for it or just order it from AF1.

Has anyone else checked out their breather pipes? Seems like a bad spot to rout it just behind the starter motor. The starter motor must have been pressing against it and finally crimped it enough. Or maybe it just worked it's way into a bad spot. Just a thought.
 
ordered the breather pipe from apriliasuperstore.com per the same part number in the v7 manual. But, I don't think it's the right one. One end is a 90 and the other has a much wider opening/hole, and it doesn't seem as stiff/hard as the one on the bike. This hose is a bit more pliable. Doesn't feel as stiff either. The manual lists like 3 or 4 different sections of this breather pipe in the diagram but they're all the same part number so not sure whats up. I'm gonna keep looking I suppose, or try to go to a local shop that might have it.
 
if anyone has any info on this or an extra one, please chime in. It's the oil breather hose that is one of two under the 3 way union valve behind the starter motor. It's a stiff hose, can barely squeeze it together with my fingers. All the parts sites don't have pics and I don't want to spend another $20 getting the wrong one again. Any help is appreciated.
 
So I put a new breather tube that isn't the exact same thing but was close. Still getting a small leak at the join where the heads meet the cylinders. Could be a gasket or something I suppose. Probably gonna take it to the dealer. Thought it might still be overfill, but I don't think that's it.
 
francod123 said:
So I put a new breather tube that isn't the exact same thing but was close. Still getting a small leak at the join where the heads meet the cylinders. Could be a gasket or something I suppose. Probably gonna take it to the dealer. Thought it might still be overfill, but I don't think that's it.
Click to expand...


Got it at the dealer now to replace gaskets, etc. Got a second leak at the final drive again on the way up?! That's the second time that will have to be replaced.

I think the oil leak at the heads though has something to do with removing the throttle body, because the TB sleeves are a bitch to get off and I bet it somehow made that head gasket joint loosen up or something, because it's quite odd that both sides would be weeping a little oil at the fins. So, keep an eye out if any of you have removed your throttle body.
 
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