20 replies to this topic

[Cliffvxr]

hello here is my How-to CCV-Bypass ( cliff crankcase vent bypass)

I am Dutch so my English is not 100% ( please be gentle )  

 

Before the bypass my Z22se used every 550 miles 1 liter of oil ,after the bypass the intake stays clean and after 1000 miles

the oil dipstick level is stil at MAX !!!!

 

Take the rocker cover off and drill a hole at the intake side in the middle crankcase vent canal of the rockercover.

then shut down the Egr-valve i made a 1 hole plate so the valve can be placed back so you don,t need an egr cheater

 

then cut off the Egr pipe and make a connection

add an extra o-ring 2mm so the egr-pipe closes airtight in the intake manifold

 

please use hard pvc hose because the space is very tight

 

then i made a stainlessteel bracket for extra suport 

 

 

Attached Files

•  ccv bypass1.jpg   37.99KB   23 downloads
•  ccv bypass2.jpg   48.67KB   23 downloads
•  ccv bypass3.jpg   27.23KB   21 downloads
•  ccv bypass4.jpg   54KB   21 downloads
•  ccv bypass5.jpg   23KB   21 downloads
•  ccv bypass6.jpg   49.81KB   20 downloads
•  ccv bypass7.jpg   36.86KB   21 downloads
•  ccv bypass8.jpg   36.13KB   20 downloads
•  ccv bypass9.jpg   52.69KB   21 downloads

Edited by Cliffvxr, 26 December 2015 - 05:33 PM.

[Exmantaa]

I read your post on the dutch Opel forum about this. Did you not go from 1l oil per 1000km to zero with this mod?

 

Worth to mention that you need to block off the original pcv path in the cover/head that goes to the orifice between cil 2&3...

[Cliffvxr]

that,s correct with this mod i already drove over 1500km and still no oil use

 

to block off the Original path is indeed a option by my engine it wase already completly closed by pollution (THE MAIN RESON ) of the oil use

 

so i dit not block it off again

[CHILL Gone DUTCH]

are you still a NA ?

 

its the SC cars which have a big issue 

has it been tried on a SC

[Exmantaa]

No, he's NA.

But the strange thing the Z22SE seemingly has this huge oil use issue with only a blocked pcv orifice in the manifold... 

[Cliffvxr]

No, he's NA. But the strange thing the Z22SE seemingly has this huge oil use issue with only a blocked pcv orifice in the manifold... 

The strange part of it all is when the pcv is replaced by a new one the huge oil use comes back in no time That's why I made the crankcase ventilation external . I think that the high crankcase pressure is also the problem with the sc engine because the crankcase vent is also internally the basic of the engine is the same as the na

[Cliffvxr]

ccv-bypass update after 1855 km oil is just under max

the extreme oil use is gone!!!!!

 

 

 

 

Attached Files

•  dip stick.jpg   25.59KB   12 downloads

[fezzasus]

You've connected the exhaust gas feed from the EGR into the rocker cover?

 

You're going to get very oxidised oil.

[Exmantaa]

No, if you read the 1st post he has shut off the EGR valve and then used the old egr connection to the intake manifold for his new crank cover PCV hose...

[fezzasus]

Got it. I saw the steel pipe and assumed it was from the exhaust side, but now I think back to the EGR valve, there isn't any external pipework connecting the EGR to the exhaust side.

 

So my read from this is that the internal oil weir system isn't fit for the blowby rates of a supercharged engine.

 

I've just bought a Pro-Vent 200 and will try to couple that with removing the weir system in a SAAB rocker cover.

[oakmere]

Also a little confused with this. The pcv is in the head not the rocker cover?

[oakmere]

Just looked at this again and it looks like it dose go through the rocker cover. Dose any one know how it flows through the block and rocker back to the small hole in the inlet manifold.

[haggi961]

What about chills idea? Then there's no need for drilling holes. It's the route I've gone down and also Peter thinks it's a good idea.

[Exmantaa]

What's "Chills idea"?

[CHILL Gone DUTCH]

I've run this for over 12 months
There is minor oil usage

[Cliffvxr]

Just looked at this again and it looks like it dose go through the rocker cover. Dose any one know how it flows through the block and rocker back to the small hole in the inlet manifold.

 

the left canal is open to the crankcase the middle canal is going to the pcv in the inlet ,only those two canals are connected in the rocker cover thats why i made a direct conection between the rocker cover and inlet manifolt to keep a open crank case ventilation by 3mm

Attached Files

•  crankcase vent bypass.jpg   41.8KB   9 downloads

[Sutol]

Chill have you checked the laminovas for fouling?

[CHILL Gone DUTCH]

I will be checking when the inlet comes off to put WI on So the answer in short is NO But I've done everything I can to reduce restriction to allow air in And also tried to reduce the the vacuum from SC to pull the gasses out

[Sutol]

I will be checking when the inlet comes off to put WI on So the answer in short is NO But I've done everything I can to reduce restriction to allow air in And also tried to reduce the the vacuum from SC to pull the gasses out

Well it's good that your oil consumption is relatively normal now. If oil is collecting on the laminovas I wonder how much effect this has on heat transfer??

[CHILL Gone DUTCH]

I think it makes quite a big difference I hoping that some carefully placed water jets will keep all the inlet well steam cleaned aswell as cooling charged air