Oil filler leak...this one's got JFP written all over it!

[Stl-986]

If they said it was seeping, they prob meant at the block. There is an o-ring on #16. Not all that difficult to replace, even with the intake in place. Just remove the cross over tubes and you will be able to get to it. If you are replacing #15, might as well replace #16.

[blue62]

I forgot to mention that these plastic hoses become brittle with age.
So with that in mind be gentle when disconnecting part #15 from #16 so you don't damage the connector part of #16. If you damage that connector you will either have to replace hose part #16 or figure out a way connect the two sections so you do not have a vacuum or oil leak.

[Frodo]

Thanks guys, I appreciate the guidance.

Originally Posted by Stl-986

If they said it was seeping, they prob meant at the block. There is an o-ring on #16. Not all that difficult to replace, even with the intake in place. Just remove the cross over tubes and you will be able to get to it. If you are replacing #15, might as well replace #16.

I don't for sure recall what verb he used. "Seeping"? "Leaking"? Just not sure. But I clearly recall him saying it was a very difficult job; I specifically remember him calling it a "real knuckle-buster." From that, and from what you say here, I get the impression the leak must involve the longer piece (ie part 15 in the diagram), since it would seem to be the much harder piece to free up and remove.

Now I just need to decide if I think I can get it off part 16 without breaking that part

[blue62]

Frodo
If section #16 is leaking at the O-ring or anyplace along the length of the oil fill pipe you will see a slight oily residue. The oily residue will cause the road dust and dirt to stick to the engine. If there is no oily residue you can blow the dust and dirt off with an air hose. So just by blowing you engine off you can tell if you have any leaks or not. If you have any oily residue you most certainly have vacuum leaks as well.