Hey, in the process of removing the valve covers, the o-ring around the partial load breather disintegrated. The hose / fitting itself is fine.

Do you all know the part number or where I can purchase a new one? After a lot of searching, I can't find any information

Here is a pic of the o-ring

 

The circled o-ring should not be there as it does nothing (someone has added it thinking it will seal). The o-rings that seal are the ones on the pipe fitting (in-between the pliers "needles" on your pic) and they go into the fitting on the cam cover.

 

Interesting, I thought these came standard on the X308s. Here is another pic showing the o-ring.




Hopefully it won't matter, because I can't find a replacement anywhere!

 

Just had a look at my spare cam cover - the yellow compound that looks like an o-ring is actually squeezed-out excess resin that glues the fitting to the cam cover. You can leave it as it is, partially chipped off (as on my spare cover) or you can scrape off the remaining portions for neater appearance.

 

That's the fella!

Thank you, I shall be able to find it now, and ream to 2.5mm.

 

The same seal is weeping on my engne and valve cover on that spot is always slightly messy.