[VE] VZ and VE Alloytec PCV Problem/Fix

[Fu Manchu]

No and the Tesla valve concept’s the closest thing to anything.

 

[Immortality]

I'm no expert but from what I have seen PCV valves must open/close(or regulate) based on the amount of vacuum applied. I come to this reasoning because OEM PCV valves don't work well on modified engines with big cams that have much less vacuum at idle. Apparently there are aftermarket PCV valves that work with low vacuum or there is this,

M/E Wagner Performance Products – High Performance Crankcase Ventilation Systems

A performance PCV valve that is adjustable to suit your level of vacuum.

 

[Davidaj73]

Hi Guys. Ok need to reconfirm revised valve cover gasket to address Crankcase ventilation. Recent FB post on Alloytec Group has me confused.. Attached.

 

[Fu Manchu]

All gaskets are made fit for purpose. If they were not, they would not be able to be sold.
There’s some over analysis going on in that.

Just buy what you can afford.

Pressure problems are created by blocked or sub par PCV. Fix and modify the PCV as per this thread and you fix a lot of oil leak problems in the motor. You won’t stop already present leaks caused by too much crank case pressure, but you will slow them until the gasket is replaced.

One of ours had oil everywhere. Not anymore and all I did was modify the PCV.

Let’s not over think that one is better than another.

 

[Immortality]

Can I get a "hallelujah"?

 

[Just Damo]

Can I get a "hallelujah"?

 

[Silver07ve]

View attachment 207622 So I did the second one that goes on my VE Calais.

This PCV came from my VZ. (I used a spare on that)

Of note is that the two holes are actually slightly different sizes. A smidge under 1.5mm.

You can see the bits of red thread lock.
(Remove: Visegrips, rag over the PCV, twist back and forth, then pull.)

View attachment 207625
You can see the mark left on that ridge from the vise grips, so hence why I suggest a bit of rag over it.

View attachment 207623

View attachment 207624

You can see the holes are small.

Drill 2mm for the bottom and 3mm for the top.

View attachment 207629

View attachment 207631
I did drill 1.5mm for one hole and 2mm for the other, but considering it isn’t written anywhere that the two holes are different sizes (or why) I said “meh” and did the other at 2mm as well, like I did on the first one that went on the VZ.

View attachment 207630
Top at 3mm.

I used a magnet to clean up swarth and then a good squirt of throttle body cleaner through it. The straw fits down the holes now.

View attachment 207628
To reinstall, I used a 12mm deep set socket.
View attachment 207627
Tap it in gently with a small hammer. A short socket extension helps make it easier to tap in.

*It should remain harder (more resistance) to blow through from the top than it is to blow through from the bottom. (Had to be careful how I wrote that)

I just took mine off and it seems to be nearly new! Which it might’ve been replaced im unsure, I don’t have the right size drill bits but when I get them I’ll take it off again and do it!

 

[Fu Manchu]

As long as it’s clean inside

 

[Silver07ve]

As long as it’s clean inside

I tried uploading what came out of it but the file was too big, nothing even came out just cleaner in one end and out the other, only gunk is on each end, still gonna drill holes to prevent it from building up

 

[krusing]

Soak in Degreaser,
Wash it with Clean Water,
And use compressed air to blow the gunk out if possible.