All advice is appreciated.

My 89 245 is leaking oil. Based on my reading here, I think it is caused by excess crankcase pressure. Apparently the flame trap can become clogged or the positive crankcase ventalation valve has failed.

Problem is, I haven't been able to figure out exactly where these things are in the various hoses etc. surrounding and connecting to the fuel injection. I looked for anything that connected to the crankcase but came up empty. My manual (Haynes) is of almost no use as it only supplies a general drawing of how a pcv system works as opposed to guidance as to component location.

Can anyone provide guidance?

Thanks

Joe Zimmerman

I also have the same problem with an 89 240, B230F non-turbo. Where do you live. Perhaps I can stop by and show you.
diyer

PCV system is not a picture in itself, like a part, but a group of parts that would not all show up in a pic. Ask your Volvo dealer for a print out of the flame trap system, or pcv system. Much better than looking for a pic.

Guy, at the very least, get a Bentley Manual, and/or the Appropriate manual. Volvo manual is even better.

diyer

Quick test to see if the PCV system is working somewhat.

Engine idling, preferably not real hot yet.

Remove oil filler cap, replace with palm of hand. You should feel a slight vacuum pulling on your hand. If yes, system working, at least at idle speed. If no vacuum, PCV system needs work.

Following is based on my experience with my 1988 240, and assumes that your 1989 will be the same.

Look at the block, above the starter. See a good-sized black box. Look down through the intake manifold between rail #3 and #4. See a "thing" there with a hose connecting to the main air intake accordion hose.

That "thing" contains the flame trap. The trap sits inside a hard rubber piece on which that hose covers the entire top. The hard rubber piece sits on a short hose which in turn sits on top of that black box.

The hard rubber piece has a tee from which a small diameter hose connects to a fitting on the intake manifold, look on rail #2.

Easiest way, depending on budget, is to get from a dealer new stuff except for the black box. Not the brass fitting, that can be well cleaned. Hoses are of a compound that it not attacked by oil. Do this one time, then you'll know what to do next time. Takes new flame trap, new hard rubber piece, new long hose, new short hose, new "S" hose.

East job. Can make a rear main seal leak (expensive repair otherwise) seem to stop entirely. BTDT.

Good Luck,

Bob

:>)

Thanks BC and others.

I had already done the quick test (saw it in another post) and found that there was pressure. As soon as I pulled the flame trap out, I had vacum. Eureka!! Another win for the brickboard!!

I will admit I felt a bit stupid when I checked the new IPD catalog which arrived yesterday. They have an excellent section on this problem and all the necessary parts to fix it. My order will be placed tonight.

Thanks for the help.

Zimm

Since you have an 89, I believe your car has the same setup as my 90. It's kind of difficult to describe the location but here goes...

Stand on the passenger side of your engine looking at the valve cover. Look beyond cylinder# 4's spark plug (the one closest to the firewall) to the other side of the valve cover. You'll see a couple of black hoses underneath the fuel rail (long metal tube type thing). One fat hose coming from the driver's side and one skinny one coming from the intake manifold. These hoses connect to the flame trap - look below the 2 hoses. Voila!

Repost if you have any more questions.

--
Jim 90 244DL 245K

large bore hose (thick as your finger) gose to it for mthe air inlet, small bore hose (thickness of a good size pencil) to the inlet manafold. Flame trap is buried (good choice of words!) under the inlet manafold on top of the oil breather box.

if you have a 240 with the type of engine wit hthe large rubber 'bellows' fro mthe inlet manofold to the air flow meter thingy (i.e a vertical rubber pipe aboutr 6" accross) remove that pipe/bellows and its right behind it, without removing the pipe its a SOB to get at...

now on a b230ft (like my 940 has) you can just get at it....ah progress! my 850 is even easier!

I hesitate, but like a moth drawn to a flame... I would like to ask you:
if your 78 year-old mother said to you, as mine recently said to me, that her 1994 Buick (ugh! but she likes it) was aging too far, and she'd look for a (last?) car, and had enjoyed a ride she took recently in my 1986 745... and you thought you might get her into a used Volvo, what would you do, based on your experience with the 900 and 850?

I suppose it may be a toss-up?

From HER end of it, though:

- I would like to protect other people from her, as much as protect her, if she bumps big-time, she she hasn't yet. Praise crush zone$! Knock on wood.

- It's got to be, as far as possible, simple, reliable, cheap (relatively speaking, I know).

- I'd be delighted to build on what I know of the Volvo RWD cars, but the latest 4-cylinder Volvo FWD is almost 10 years old. Hmmmm...

Thanks for whatever you may be able to say about this. I appreciate it!
--
Gregg; Mpls, MN; 1987 745, 1967 Amazon 4-dr.