Help... PCV replacement work stopped...

skinner777 · Post by **skinner777** » 16 Mar 2010, 13:10

Hello all...

Posted an Oily smoke S60 problem last night and received a reply from jaBalckburn with details of changing PCV on an 850, very useful upto the point where I attempted to lift the manifold up and away, relalised that the fuel pipe to the fuel rail passes through the manifold and therefore prevents the movement to the left to expose flame trap/oil seperator.So as some of you will know the pipe leads from the fuel rail to the rear of the rail, loops under the manifold to a bell shaped piece and then contines down through the engine bay...another solid pipe, looks like white plastic leads from the manifold, this pipe is covered in a soft rubber. My question is which of these am I able to diconnect without having to break or replace.

I have disconnected everything else including the large hose at the bottom of manifold. I have NOT removed the fuel rail from the manifold... All answers and assistance is appreciated.

skinner777 · Post by **skinner777** » 16 Mar 2010, 13:13

Sorry forgot to tell you most impotant information...the car is a 2.0 T S S60 179PS

Post by **jblackburn** » 16 Mar 2010, 13:26

I removed the fuel rail entirely from mine when I did this. It makes it easier to get the manifold off, as you can kink that fuel line on the right up and out of your way. Relieve the fuel pressure first at the valve into a cup or shop cloth. I believe it's a 18mm wrench to disconnect the fitting at the end.

The bell-shaped thing is the fuel pressure regulator, which you can disconnect the lines from.

Here's a bit more tips for you:
http://volvospeed.com/vs_forum/index.ph ... el-98-v70/

If you don't have a Volvospeed account, he's got 3 very helpful pictures at the bottom of the post there that you need to be signed into the site to see.

I'm going to (attempt) to do a whole write up for this site at some point within the next few weeks that I hope will address some issues people have run into in replacing this system. If you have any tips or anything as to where the setup of your engine is different than ours in the 850/-70 series, feel free to PM me any comments or leave them in this post

As for your other questions I never answered the other night, worn rings would show up through a compression test. Turbo seals would result in a lot of oil through your turbo and intercooler pipes, and smoke through the exhaust. Give the PCV system a good cleaning first, and rinse the oil off of your turbo hoses. If you are still blowing smoke after the PCV repair, then you need to investigate further, but some people's problems are resolved entirely by cleaning this system.