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

[Mad Dog Tannen]

So I just completed this and the dipstick is still popping out when I race the engine. What else could cause this?

[jblackburn]

So I just completed this and the dipstick is still popping out when I race the engine. What else could cause this?

If you're sure you cleaned all the ports in the engine block - especially the one that goes around the corner at the oil pan, Run a compression or leak down test. Your rings may be worn and more than the PCV system can handle. If that's the case, you could rig up a breather box system to help the stock setup out.

If that test shows decent results, maybe the port in the oil pan is clogged from the bottom.

[thez]

So I just completed this and the dipstick is still popping out when I race the engine. What else could cause this?

If you're sure you cleaned all the ports in the engine block - especially the one that goes around the corner at the oil pan, Run a compression or leak down test. Your rings may be worn and more than the PCV system can handle. If that's the case, you could rig up a breather box system to help the stock setup out.

If that test shows decent results, maybe the port in the oil pan is clogged from the bottom.

Did......did you just skip over my question? How dare you....

[jblackburn]

Did......did you just skip over my question? How dare you....

Whoops sorry. I usually am viewing the forum from my phone app anymore and I'm not sent an email update unless I view the topic I've replied to recently.

Anyway, yes, that little piece does fit to the lower port of the oil trap. The rubber lip faces the canister.

That rubber hose may have well been factory - my car had that exact same thing.

[thez]

Did......did you just skip over my question? How dare you....

Whoops sorry. I usually am viewing the forum from my phone app anymore and I'm not sent an email update unless I view the topic I've replied to recently.

Anyway, yes, that little piece does fit to the lower port of the oil trap. The rubber lip faces the canister.

That rubber hose may have well been factory - my car had that exact same thing.

Thanks man. Appreciate the info. That little hose with the clamps seemed so out of place though.....weird...

It surprises me that people are replacing some of these parts. Cleaning them saves allot of money. I only really needed to replace the two bits that connect the canister to the block. The coolant hoses and vacuum lines can be found at the auto parts store.

[jblackburn]

Did......did you just skip over my question? How dare you....

Whoops sorry. I usually am viewing the forum from my phone app anymore and I'm not sent an email update unless I view the topic I've replied to recently.

Anyway, yes, that little piece does fit to the lower port of the oil trap. The rubber lip faces the canister.

That rubber hose may have well been factory - my car had that exact same thing.

Thanks man. Appreciate the info. That little hose with the clamps seemed so out of place though.....weird...

It surprises me that people are replacing some of these parts. Cleaning them saves allot of money. I only really needed to replace the two bits that connect the canister to the block. The coolant hoses and vacuum lines can be found at the auto parts store.

Your car has a better designed system than the older models, so I can understand that you didn't need to replace much. On the 98 and earlier, the canister is usually fine but the plastic hose is usually brittle and snaps into 27 pieces when you touch it to pull it off the turbo and oil box.

The rubber hoses, especially the one on the right side of the box, usually swell up and may burst over the years if the bottom port is clogged. The one on the top of the box could probably be reused unless its a URO hose. Then it just leaks all over.

[thez]

Has anyone ever looked into deleting or simplifying the PCV system? It seems a bit overkill if you ask me. I've seen far more complicated engines running far simpler systems.

[rmmagow]

It does really seem ridiculous. Every other car I've owned that had PCV, you pulled the thing out of the valve cover and shook it to see if it was working or bought a new one for 5 bucks and put that in. This Volvo thing is totally nuts! More work than dropping the tranny on my truck.

[jblackburn]

It's a good idea in theory. Condensing and dumping the oil vapor fumes back into the crankcase is a much better idea than just blowing it back into the intake manifold where it dirties up valves, intake runners, etc.

It just clogs up over the years...and is a pain to get to. Once you've done it a few times, the job is much easier.

I've seen worse designs. You have to remove the intake manifold on a Ford Escape V6 just to change the spark plugs. Idiotic.

[xHeart]

Would draining coolant few liters from the plug under the radiator eliminate the need of pinching bleeder hose, and any spill at removing upper radiator hose? Save and refill afterward.