What's this missing pipe and do I need it?

[admwllms]

As above really, any chance anyone can tell me what this missing pipe is by the oil filler and if it's important? Was never connected with the bus. I think there's also one missing below it that goes to the crankcase or something? The only pipe I've got that does kind of fit from the air filter into the oil filler goes into the oil filler port, because it's too small, which obviously isn't ideal so I didn't fit it. Perhaps there's some kind of attachment or something that makes it fit.

If needed, any links where I can buy it would also be appreciated!

 

[who?1]

Find some rubber hose that fits it mate, it a breather pipe and needs to go to the oil bath air filter.

If it's not installed you will blow oil all over your engine bay!

 

[admwllms]

Thanks dude, good to know - much appreciated!

 

[Nugsy]

as above, it connects into the pipe on the air filter, you can see it in the background on your picture