question about a t25 turbo

is it possible for my turbo to be bad and pressurise my oil pan through the oil return? i have way to much crankecase pressure and i cant figure it out my rings/valves all cheaked out fine. the turbo does have shaftplay

Have you checked your PCV valve? A bad or clogged PCV valve will cause excessive crankcase pressure, possibly causing your dipstick to pop out - I'm assuming this is how you know you have too much CC pressure? Anyways, I'd go about checking the PCV valve first.

my pvc valve runs of vaccume from the manifold but when i boost it closes the valve so i ran a hose from the valve to the air filter pipe (the only place that still has vaccume) but its filling my pipe with oil? i was told not to use a pvc valve with this setup
so i just put a plastic 90 degree tube in its place