SR23L has had its crankcase breather deleted! Need advice

ONLY for ADVANCED technical discussion about the 240sx!
User avatar
rc1honda
Posts: 585
Joined: Mon Aug 11, 2008 4:25 am
Car: 1992 240 sx
2007 BMW 335xi
2008 Honda CBR1000RR
Location: Chicago burbs

Post

Ok I am kinda at a loss and need some insight.

I now have a 2.3L SR up and running but I am so confused about the breather setup.

Everyone knows about the intake manifold T and how the front goes to the intake and rear goes to block right? Ok, well what do you do when the engine block breather hole has been deleted with a aluminum plug? I mean billet aluminum.
Even now I can feel the back pressure through the valve cover.

So what do I do? Do I need a vac pump now? I'm really at a loss. I have the front if the T capped and the rear going to catch can then turbo intake as it stands.

I can get a picture up later for sure.

So really I am asking is how am I supposed to vent the Crankcase pressure and how important is it? I always thought is was essential to vent the crankcase in one form or another either to atmosphere or to the intake.

Here is the picture.

Image

As you can see there is a billet plug deleting the port where cranck case pressure is usually used to vent. What do I do?


User avatar
CSUPUEBLOTIM
Posts: 742
Joined: Mon Mar 31, 2008 3:45 pm
Car: 1992 240sx Sr20det Coupe Silvia Front

Post

Was it installed for machining purposes or was this engine running before you got it?


Return to “240SX Technical Forum”