P80 PCV System Repair on a Volvo 5-cylinder (-1998)

[xero890]

Hey I just did the PCV job today with the same kit from FCP, and everything went great. Just a question though, in the kit there were two small hoses that I didn't end up using. One is a hard plastic line in a bag, and the other is rubber or silicone (it's quite flexible) and has a braided sheath on it. What are these for? Did I miss something?

[jblackburn]

I believe you may have the two hoses here at the bottom of the box. If you re-used them from the old oil separator, they're probably OK, but I changed all of mine.



Here's what FCP shows in their kit:

[GoinFor300KMi]

xero890 is referring to different hoses - I recently bought the FCP kit and mine had the same two hoses he has described. The thin plastic one I put in a box of stuff I keep that might come in handy some day. The thin rubber or silicone tube with braided exterior is also in the same place, I used some of it to reengineer my vacuum connections. I didn't care for the integrated vacuum/intake tube assembly that was in the kit, it was too difficult to connect to the attachment on the top of the intake manifold and I was afraid it could pop off someday. I Duplicated the original setup. FCP told me that the kits are generalized for a variety of models/years, so you might end up with an extra piece. It's cheaper than making a hundred different kits.

[rsavin]

I'm in the middle of this job on a 94 850 Sed...NON-Turbo. It seem to me i'st a bit more difficult on this model vs. a Turbo. I absolutely could not get to the lower left side bold w/o removing the fuel rail. I really didn't want to do this but it ended up being not very difficult and got that fourth lower bolt out MUCH quicker. Another big problem I had was that damn EGR valve which is mounted on the bottom of the intake on the right side. It has a copper 3/8th" tube with a pressure fitting going into the EGR on the bottom. Getting this disconnected was a BEAR! I ended up having to use heat to get the tube and fitting out. BUT, only after I disconnected everything connected to the manifold (and I mean everything). With this EGR tube the only thing left holding the manifold in, and after many attempts at beating it off (kind of gently though), I resorted to heat which freed it and then I could totally removed the manifold. I have read a ton of writeups on this job before starting it but have not come across any that mention this EGR connection. Just figured I would add my experience in case someone else runs across this EGR situation. A Turbo apparently does not have an EGR in the same place. Over and out!
Rsavin

[BigRed]

I'm half way through PCV job on a '95 Turbo Sedan. It does have an EGR.

It did stump me a bit as none of the write-ups had one. I used an adjustable wrench to get the compression fitting loose. But it still wouldn't disconnect. I started searching the site and found a post that said pull, HARD! And I did and it came loose.

Anyone know if the threads need something like teflon tape when going back together? It looked like there was something on the threads.

[volvomileage]

i did my pcv last summer , thanks to the help over here, i used oem parts made shure all was done by the book. however i have the dipstick smoking like a train, i cleaned up and changed the flame trap, changed the small vaccum hose thats on the flame trap housing and no change, when i rehauled the pcv i made shure the two holes in the block were obtruction free, it c ant be that the system is full , i use synthetic oil and barely do 10000 miles per year i am stumped !

any ideas ?

[tranmkp]

Just curious, I had a 164 for 20 years - as it got to 300k, It was starting to get a lot of blow by - I removed the valve cover and installed two off road breathers - /drip tanks. MOunted them to the firewall. Both had two small K&N filters on top - I had zero issues will oil leaks after that. Cant we just plug the holes in the case and vent the engine from the top?

99xc70
95 850
93 940

[jblackburn]

I apologize, I have not looked at this topic in a while.

i did my pcv last summer , thanks to the help over here, i used oem parts made shure all was done by the book. however i have the dipstick smoking like a train, i cleaned up and changed the flame trap, changed the small vaccum hose thats on the flame trap housing and no change, when i rehauled the pcv i made shure the two holes in the block were obtruction free, it c ant be that the system is full , i use synthetic oil and barely do 10000 miles per year i am stumped !

any ideas ?

What happens when you open the throttle a tiny bit? There may be just too much blow-by for the system to handle at idle.

Just curious, I had a 164 for 20 years - as it got to 300k, It was starting to get a lot of blow by - I removed the valve cover and installed two off road breathers - /drip tanks. MOunted them to the firewall. Both had two small K&N filters on top - I had zero issues will oil leaks after that. Cant we just plug the holes in the case and vent the engine from the top?

Some people have made a supplemental 'catch can' device to help out the existing PCV system. There's something about that earlier in the discussion. But the bottom 2 ports act as oil drains, and when I had a blown hose quite a bit of oil leaked out of there, which makes me think that a lot of oil gets blown around through this system, at least on a turbo car. So...I don't really know

[jonbaum]

Do you have a picture of what the flame trap looks like and it's location? I am assuming that this is where the vacuum comes from. I had so much pressure that I blew out the rear camshaft seal. Go figure.

Jon

[jblackburn]

I did that too.

If you have an NA motor ONLY, you have a flame trap. Here is the location: http://www.volvospeed.com/Repair/ftrap.php

Your signature above says you have a GLT though, which is a turbo motor. You'll have a PTC instead.