air Nipple orientation on 914 airbox

? it will be more easy to answer if you can show the picture please.

Hi Xing Wang,

Will post pictures of airbox and damaged nipple tomorrow.

Many thanks, John

Please see photos of nipple 940555 and airbox. Which way should the hole at the airbox internal end be facing?

Many thanks for any info.

Yes, this is high pressure line , when throttle goes to 115% the turbo make pressure,  that high pressure this this specific nipples transfer through enricher to carburetor for supply of maximum fuel/gas.if you doesn't connect this nipples to Enricher , the supply of fuel at 115 WOT can be disturb and you can't go on 5800 Rpm.

Nipples working on pressure base.just installed new part  downward ? and fully tight with loctite .

I looked through the heavy maintenance manual and could not find where this is addressed. It seems like a good question. The hole in the nipple is clearly a specially shaped hole. But maybe the thing about the special shape is that it makes it so that it doesn't matter what direction if faces? Is there any mark on the outer portion of the nipple that coincides with the orientation of the hole? We need a 914 expert to jump in here.