1996 850 non-turbo flame trap: small hose nipple at manifold?

The small brass nipple is on the right hand side of the inlet manifold (alternator end) and is almost impossible to see, touch, reach and anything else.

There is a moulded piece of rubber in the shape of a U-turn which fits to the manifold and the other end to a piece of hard black plastic tubing (nylon?). This runs under the manifold to the flame trap, where another piece of rubber connects it to the part you know about.

Having said that I have fitted a new hose to mine twice without removing any parts in the vicinity. It's not easy but just take your time. I actually used a piece of ordinary rubber hose and made a big loop, rather than get the custom made part.

I often wonder just what the arrangement achieves, but I put it back the way Volvo made it anyway.

Regards Barry

Thanks, Barry. I'll start looking. I do wonder also how this system is working...the small hose draws a vacuum at the flame trap, and the oil vapors travel up the large hose? It seems like a poorly designed system.

Andy