[VE] VZ and VE Alloytec PCV Problem/Fix

[scaredyet]

I read a few comments that this mod causes other issues down the track like excessive oil and needs a catch can.

 

[Fu Manchu]

This mod causes the PCV system to work how it is supposed to and was introduced by GM themselves in recent years.

It can be argued not doing this mod also causes the same things.

Excessive oil in the intake is also one of the symptoms of the PCV system not working how it should with blocked or restricted ventilation from the right hand side of the motor.

It is accepted now that catch cans on almost all modern cars are a good thing. Certainly on Alloytec based GM models.

Not sure I can be arsed though.

 

[Dayvo]

This mod causes the PCV system to work how it is supposed to and was introduced by GM themselves in recent years.

It can be argued not doing this mod also causes the same things.

Excessive oil in the intake is also one of the symptoms of the PCV system not working how it should with blocked or restricted ventilation from the right hand side of the motor.

It is accepted now that catch cans on almost all modern cars are a good thing. Certainly on Alloytec based GM models.

Not sure I can be arsed though.

This mod causes the PCV system to work how it is supposed to and was introduced by GM themselves in recent years.

It can be argued not doing this mod also causes the same things.

Excessive oil in the intake is also one of the symptoms of the PCV system not working how it should with blocked or restricted ventilation from the right hand side of the motor.

It is accepted now that catch cans on almost all modern cars are a good thing. Certainly on Alloytec based GM models.

Not sure I can be arsed though.

I found that fitting a catch can to.my lfx motor was a pretty easy job .

 

[VS_Pete]

I found that fitting a catch can to.my lfx motor was a pretty easy job .

And easy to maintain too.

 

[Fu Manchu]

I found that fitting a catch can to.my lfx motor was a pretty easy job .

I found that I can't be arsed because of motivational disabilities.

 

[greenacc]

Those with catch cans, have you seen a difference in the amount of oily stuff collected in your catch can when using good synthetic oil compared to cheaper oils?

 

[Immortality]

Can't comment on types of oils but driving styles definitely seem to effect how much oil is captured.

 

[Dayvo]

I found that I can't be arsed because of motivational disabilities.

I'm like that at work

 

[Hannan Horsfield]

I did the PCV mod.
Had a spare valve cover. Gave it a go.

Amazing difference.

Pulled the spare off with a claw hammer. Plucked it out easy. But you can’t do this when it’s in the car.

In the car, use visegrips. Put a thick cloth over. Lock the grips, twist back and forth and pull.
They are in with dob of Red thread lock.

To get the PCV hose off, there’s a tab to use. Press in? Out? Can’t recall.

I checked out the Camaro forum. They say 5/64ths and 7/64ths are the drill sizes to use.

I converted that to 3mm for the top hole and 2mm for the bottom.

Soaked the valve for a few days (forgot about it) Throttlebody cleaner evaporated. Left this muck View attachment 207594

It (the wrecker spare) was clogged solid. Couldn’t see through. Heaps more came out after this. Did many many soaks and cleans.

Got it super clean.

Drilled the holes. After this, getting the straw on the throttle body cleaner inside the valve was easy. More schmutz came out. Bits of carbon. Easy to get the metal out after drilling.
Another soak and in it went into the VZ.

The one that came out was ok. Not clogged. Could see through it.

Didn’t expect anything to happen.
However each day, the idle and revs smoothed more and more.
Always has trimmed revs as you drive. The tacho gauge just twitches up and down. Bugged me. Not anymore. It’s pretty much steady as now.

Vacuum seems better. Why??

Smooth acceleration. Smoother than Barry White walking in yogurt.

Would recommend to everyone.

There were no changes made or fuel added during this change.
I take it the ECM has been slowly relearning fuel trims now the crank case gassed are flowing better.

I didn’t get any data before hand.

Will be doing this on my VE Calais now that the VZ is super happy with it.

Again, it was a pleasant surprise.

This came from my VZ one (much cleaner) View attachment 207595

Fuel consumption improved as well.

Thankyou so very much for your detailed description. I haven't attempted it yet. Waiting for a cool day and patience. Thankyou so much as I now have the confidence to give it a go. ☺

 

[greenacc]

Can't comment on types of oils but driving styles definitely seem to effect how much oil is captured.

Yes I have been told that driving them hard with a lot of high revs spews more oil into the intake pipe so no doubt into the catchcan too...