Oil Catch Can, Eliminate that knock!

I'm thinking if I put one in, to put it as close to the source as possible. I'm under there with the panel removed every six months, for oil change, so no big deal to check.

My thought would be to cut that U-shaped hose (that goes from pcv to intake manifold) around the middle, put in one of those splice spiggots (3/8" dia?) pull off and rotate the section of the hose on the pcv valve side 180 degrees, push a short section of new hose onto the pcv outlet, and connect both hose ends to OCC, say within a foot of the pcv valve, towards the driver's side.

Just figure out something to zip tie it to. Hopefully there's room, I suspect there is.

 

It's an interesting idea. How would you get to remove the canister to empty it?

Pixel XL ?

 

At each (6 monthly) oil change. I'm under there, with the panel off, regular as clockwork. More fun than Christmas, lol.

Didn't someone (@danlatu ?) say when he's checked that glass one it was just a few tablespoons accumulation? I'm wondering about those miles of (uphill) tubing too, though I guess it doesn't really matter: the oil gets stopped either in the OCC or the hoses.

 

Amount of blow-by all depends on the engine's condition and climates. You'll want to experiment.

Pixel XL ?

 

The typical OCC opens by unscrewing the bottom from the top? That should be easy from below at oil change time. And you have a drain pan right there.

 

That bolted panel the pcv valve screws into seems to do that, though maybe not that well. It looks like the crankcase gasses go through some baffles, and there's a drainback.

 

I'm thinking: disconnect the current hose at PCV valve, attach a short (say under 2') coil of reinforced clear tubing (3/8" ID) having SS wool mesh along it's length. Reconnect to the current hose with a hose barb splicer. Rely on the hanging-down loop and the mesh, to trap and accumulate airborne oil. Maybe sub a fuel filter for the hose barb splicer.

 

Might try it without the SS wool mesh first. I'm a little reluctant to have metal shaving that close to the intake, without adding some sort of final filter.

I'll coil and zip-tie it so there's a couple of loops, have the connections at the top and the loops hanging down, and hopefully oil will accumulate at the bottom of the loops.

I'll clean out the oil that's accumulated at the base of the throttle body, and then check after say 1000 kms, see if oil is accumulating in the throttle body again, and how the tubing looks. If the first loop of tubing beyond the PCV valve has some oil, and the second loop looks near-clean, I'll know it's effective. Doubly so if the throttle body base is staying clean.

And if it's overwhelmed by the volume of oil, then I can utilize what I've got with a more kosher OCC.



Four feet of hose, the Brass Hose Barb Splicer and two clamps was $10.43 (can) plus tax. The hose description (hopefully ok) is:

TOMAHOCK 3/8" ID 5/8" OD BRAIDED VINYL

 

don't skip the mesh, it helps a lot. in all the years I've never had problem in my other cars (& I don't expect to have one in the Prius).


BION

 

that's what I use for normal:


BION

 

Hey danlatu
Would you recomend me installing an occ now that im done with my head gasket issues? All fluids were replaced. Car runs great again but im thinking bout that occ idea.i still have about 50k to drive the cartill somewhere in 2018. Doesnt look that complicated.
Im still monitoring oil level. Been almost 2000 miles since replaced gasket. No signs of oil level dropping.

 

Installed that hose, with SS wool along it's length, well a 2' section. Also pulled off the throttle body and cleaned out the tablespoon or two lurking in there. Did NOT need to disconnect any coolant hoses. DID need the car raised and underpanel off. Throttle body nuts/bolts torque is 7 ft/lb btw.

THEN, with everything installed and buttoned up, went back inside, and snapped, ordered this:



ETA Sept 14

 

Got the Moroso oil/air seperator in, no bashed knuckles, but mentally and physically knackered. Also removed and cleaned intake manifold. Many thanks to @NutzAboutBolts for the videos!

Fashioned a bracket for the OCC on the lower cross beam, and basically mounted for access from below.

I'll post some pics in @NutzAboutBolts thread, where to mount OCC.

 

And the state of the intake manifold at your advanced high mileage state?

You'll probably be the lowest mileage data point we get.