I just realized some of the PCV fittings are broken, how can I delete the entire system and run the fumes into a catch can for collection?

Supposedly you can use sheet metal screws on the intake manifold orifices, but what size? Also what kind of hose do I use? Lastly what's the best location and mounting method for the canister?

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

The crank vent system is supposed to return blowby gas to the inlet stream, so that pollutants can be burned. Crankcase fumes account for about a quarter of the unburned HC produced by your engine. What would your catch can accomplish? If you want to go neanderthal, they used to use a simple draft tube in the old days...just a solidly mounted tube terminating under the engine, in a low pressure area. Because you know, if you drop it under the car it just disappears. And if you can't see it, it isn't really there.

With the catch can you can simply dispose of it at any facility that recycles oil.
Full chimp mode would be venting it to the atmosphere. I don't want to do that.
It also reduces carbon build up on the intake valves. Will also simplify the PCV system while protecting your engine from possible failure.

A broken or cracked PCV barb will allow unfiltered air to enter the engine, increasing wear.

__________________
1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

My understanding of a catch can is a device that condenses oil in PCV vapors. The catch can only holds oil. Vapors have to go somewhere - to the intake to be burned or less desirable places.

Having a catch can still requires solid PCV plumbing so I’m not sure if it gets you out of bringing things up to snuff anyway.

Where you mount it and how you route the plumbing are matters of creativity. What kind of catch can are you intending? Which car are you doing first?

Sixto
98 E320s sedan and wagon
02 C320 wagon

Doing it on the 97 E300, I thought about doing an oil separator, but wasn't sure I could pull that off.

I THINK the oil separator is more involved? Which is why i'm going with a catch can.
Plan on using ATF coolant hoses as plumbing, seeing as those last a very long time.

__________________
1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

Go back a step and explain why you are doing this and what you hope to accomplish.

Why?Stock PCV system is fragile and cumbersome. Mine is cracked.


I want simplicity, durability, and the ability have a cleaner running engine.

__________________
1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

The PCV system is one of the simplest of all pollution control systems. It's just tubing and an oil separator. Fix it and forget it for another quarter million miles.

Ok, I'll just fix it.

__________________
1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

I don't know if the forum will let me post my pic again but I'll give it a try. If not you can look it up in my build thread.


Won't let me post it again but look in a thread titled "Breather - Just Wondering....." A search there ought to show the pic.


I'll agree that a breather isn't choice #1 but they will work. Mine gets very little in it but of course I also don't go many miles, like maybe 20/year (Mutt IS a race truck). Neither do I have visible smoke come out the breather even though almost all my operation is WOR against a wall of air. As far as prepping the engine - well, you use what works. You can buy vacuum line rubber plugs at any auto parts store for any male line ends and for female ends you can cut a short piece of steel tube, shove it in a cap of appropriate size, then slide that assembly into the female. Basically it's time to go all Hot Rodder and do whatever it takes.


Dan

If you have the picture in peachparts or another site, copy the URL of just the picture and paste it in your post between (img) (/img) tags using square brackets in place of parentheses.



Sixto
98 E320s sedan and wagon
02 C320 wagon

Thanks Sixto - I'll try to remember that the next time. But I'm OLD......


Dan

Just get the MANN deal and save the headache

O.K., I'll bite :

? What's the Mann deal ? .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

MANN oil - air separator