Eliminating the b*tch tube.??

[MR 325]

A valve adjustment with gasket should be $100 or a little less.

[Wild Ride]

Why do people have a problem with this tube exactly? I've done several with no issue.

I definitely struggled with it. It is a pain to get the spring loaded tube to avoid severing the o rings during install.

[StereoInstaller1]

use 2 wire ties as spring compressors, cut them off after installation.

[MR 325]

I've never even used zip ties. The trick is to use grease. The tube and spring will stay down.

[dclowd99011]

I've never even used zip ties. The trick is to use grease. The tube and spring will stay down.

How do you use grease? Lube up the bottom and push the tube down?

[Vincenze]

How do you use grease? Lube up the bottom and push the tube down?

The pressure of the spring is too high.
Just use two small zip-ties.

[dclowd99011]

Turns out my tube is dented so it was unable to actually go into the recess. I’ve ordered a new one so hopefully this will be much easier to deal with.

[zaq123]

The pressure of the spring is too high.
Just use two small zip-ties.

that spring is not high tension by any means. One can definitely replace the top o-ring by just pressing down on the tube with one hand and put the o-ring with another. Zip-ties just make the job a little easier

[Vincenze]

that spring is not high tension by any means. One can definitely replace the top o-ring by just pressing down on the tube with one hand and put the o-ring with another. Zip-ties just make the job a little easier

Generally, there is little space for manipulations as the intake is installed.

[moatilliatta]

Installation and removal of "Bitch" tube should be a sticky.

I do wonder what would happen if you did delete it.

[digger]

Installation and removal of "Bitch" tube should be a sticky.

I do wonder what would happen if you did delete it.

Not much would happen if you deleted it for normal driving on a stock healthy engine as the oil return holes are probably big enough to deal with blowby when you combine total area of them.

[moatilliatta]

Not much would happen if you deleted it for normal driving on a stock healthy engine as the oil return holes are probably big enough to deal with blowby when you combine total area of them.

Think it does much for balancing crank case pressures or drain back from cylinder head?

[digger]

Think it does much for balancing crank case pressures or drain back from cylinder head?

Don’t think it does anything for balancing crank case pressure as it’s a single hole. It will let pressure escape easier in general but not from front to rear which is what balancing does . As for how much flow it depends on the engine condition and how you drive it may not be missed. From memory 1 cfm is about most blow by you’d expect

the oil that drains down it will find the next easiest way. I’d need to have a look to see how big of a pool it would make but I’d think it would not be significant.

I wouldn’t delete it personally as my engine is not a low rpm, low hp new engine.

im sure there are ways to improve it, better quality orings would be a start so they don’t go hard as fast. Perhaps additional preload on the o-ring would help

[hasa]

I have thought that the tube lets crank case pressure to enter head, whereas the holes at opposite side will drain oil back to pan. If crank case pressure should enter head only through drain holes, the drainage could be disturbed.

[Northern]

I think it's just for airflow up to the head, since all blow-by has to get from the block to the head for the PCV hose.
Otherwise you have oil draining one way down the oil drains, and air moving the other way.

Might not cause drain issues, but might end up with more oil saturated air that comes out the PCV?