Persistent oil leak at filler pipe

[ElevenFifty]

I've replaced the o-rings and it got a little better, but still leaking. I've order the entire assembly - pipe, cap and new o-rings. I've always been a little amazed that this whole assembly looks to be just pressed into place with no positive locking mechanism to afix the pipe into the valve cover.

 

Am I missing something here?

 

Is there a 'best' way to insert these plastic parts?

 

Has anyone come up with a reasonable alternative (though it didn't leak a drop for 80K so I probably shouldn't complain)?

 

Thanks as always -

 

David Hunt ;~)

[philbytx]

I had a similar issue. You just need to ensure that it is evenly pressed into the hole. The second time (besides cleaning out the hole), I lightly smeared the o'ring with oil and then used a screwdriver handle to press the assembly down evenly the second time and, thereafter, never had a problem

[Mark_Turner]

This will solve the problem

 

http://www.ascycles.com/detail.aspx?ID=1912

[tobyzusa]

Mark,

 

I assume you installed this? How is the bottom (female) piece different than stock? That's where the leaks occur. I'd buy this if it reallly works, but I don't see how its different from stock by looking at the picture.

[4wheeldog]

Even better, lube the "O" ring with silicone grease. Lubing with oil can let oil creep past the ring, where using a dissimilar lube will stop the wicking. Good Luck!

[Mark_Turner]

Yes I bought it cause I had the same issue. It replaces the insert and is locked in with a couple of set screws and the cap is metal instead of the cheap plastic. Cap screws in for a much tighter fit, no leakage and it is also somewhat of preventive of someone tampering with your oil filler.

[AndyS]

I've replaced the o-rings and it got a little better, but still leaking. I've order the entire assembly - pipe, cap and new o-rings. I've always been a little amazed that this whole assembly looks to be just pressed into place with no positive locking mechanism to afix the pipe into the valve cover.

 

Am I missing something here?

 

Is there a 'best' way to insert these plastic parts?

 

Has anyone come up with a reasonable alternative (though it didn't leak a drop for 80K so I probably shouldn't complain)?

 

Thanks as always -

 

David Hunt ;~)

 

Are you talking about the Oil filler cap?

 

If so, you could get a slightly chunkier O ring. I am not sure what cross section size it is, but for instance, if the stock item is 5.33mm you could go to say a 6mm item.

 

Andy

[SAAB93driver]

Fixing Oil Filler and Cam Cover Leaks

http://www.ibmwr.org/r-tech/oilheads/orings.shtml

 

or get the replacement gizmo from Moto Techniques

http://www.moto-techniques.com/bmw.htm