Catch Can Problems

[townzy92]

heyy fellas, just bought a skyline and old mate i bought it off set up a catch can so its not drawing back into the intake , any ways the tall tube that runs back into the intake he had that blacked off and the 2otherscoming off the cam covers ran straight into the catch can, problem being the catch can will fill up with oil within half hour wtf, but i set it up back to the way they come out of factory, whats am i doin wrong ?

[Hiroshima Screamer]

is it happening all the time or under boost? im having similar issues with mine but mainly happens under boost.

[townzy92]

not sure mate, i empty it go for a little drive and come back and there is like 300ml oil in it, im not driving it hard or high boost, if i drive on the high way for 30 mins it fills right up, but soon as i hook it up to the ols set up its fine ? so weird

[BOOZTJUNKEY]

Have u had the car recently serviced ?

Possibly to much oil getting forced pass the rings

U could setup a tempoary drain into the dipstick if it is too bad?

Also are the breathers on the can the same size as the rocker cover ?

Possibly the can not having enough volume and pressurizing the sump cause it's not breathing as it should ?

Have u tried taking of the can?

Edited October 25, 2011 by BOOZTJUNKEY

[townzy92]

yeah all the tubes on the rocket cover are the same, um im hopeing its not rings, yeah oil pressure is spot on

[BOOZTJUNKEY]

What about amount of oil ?

A compression test would be the next thing I'd do to check rings

[beemae30]

Do a compression test. Otherwise connect the dipstick tube to a manometer and check crankcase presssure.