dubulup

yes it will...and a catch can (between) will pull the nasty **** out so you don't injest it.

GoodfellaFD3S

iTrader: (213)

Each FD tends to react differently, but when speaking of depressurizing the crankcase----running a line to the turbo inlet works the best, you're actually getting a suction effect. A catchcan can be run inline if so desired. I currently dont have my catchcan mounted because I have to find room for the damn thing with my new setup, I was hoping to bolt it down with the custom bracket I have that worked with my BNRs, but with the new single that spot won't work. I temporarily have the bottom nipple on my filler neck uncapped.

GoodfellaFD3S

iTrader: (213)

Word.

GoodfellaFD3S

iTrader: (213)

I've also noticed in the past (BNRs were very sensitive to crankcase pressurization/blowby problems) that running a thicker oil in warmer temps made a big difference. I typically run 20w50 in the summer and 10w30 in the winter anyway, but on occasion when the weather quickly changed and I was caught with thinner 10w30 in summer months, I'd have some smoking problems. Going to a 20w50 cleared it right up.

mono4lamar

iTrader: (32)

I stated simply that putting a line to the compressor cover would not take care of the problem at hand. This being that the acual nipple drips oil. So putting a line on that and putting it to my compressor cover would add vacuume to the dripping spout and help it make its way to the compressor, or it will just follow a line there now. Maybe im thinkin of it wrong but looks like it would just suck oil into the compressor cover.

Yes adding a catch can would eliminate this problem by not allowing the oil to make it into the compressor and helping the crankcase breathe.

If i sound like im argueing im not. These are my assumptions so please tell me if im wrong and explain if you could. This is turning into a lengthy thread...

mono4lamar

iTrader: (32)

I checked the checked the valve today... its good! oh and is is suppose to be a check valve or a pcv? i went to autozone to get one the same size and it said pcv on the box took it out for some strage reason and blew into it; both sides allowed air passage! i thought pcv valves were suppose to restrict one way! i wish i could splice in a line from the compressor cover to the small nipple on the fill neck and drive it but the roads are nasty around here from a storm! any other ideas of things to check indoors?

-Lance

GoodfellaFD3S

iTrader: (213)

I'd recommend getting the oem pcv valve from malloy, they aren't too expensive.

mono4lamar

iTrader: (32)

^ yeah but i checked the valve and its ok...

i might go for the worst case senario, pulling the downpipe and looking at the turbin fins. if thats ok i'll pull the turbo and see if theres oil on the turbo manifold off the engine. just try to see where the oil is coming from! the turbos got 4k on it though....

dubulup

you shouldn't be able to blow thru both sides...that means BOOST is getting into your oil pan (could blow out your front cover gasket) and filling your turbo oil drain and pushing oil past your seals into your exhaust.

Cap the PCV...run a line from the lower oil filler neck, into the intake so it is always a vacuum. this will solve your problem. With the PCV capped I doubt you will have any oil spraying...hell, just uncap the bottom nipple and cap the PCV and see if that helps.

(when you say compressor cover, I hope you don't mean the housing because that is pressurized)

mono4lamar

iTrader: (32)

^ no my pcv valve does not blow both ways... its only the one way. i stated that the ones in autozone did... i was confused why theirs did.

capping the pcv... what exaclty do you mean? there are two nipples on the filler neck, what do i do with each one? which end of the pcv am i suppose to cap (intake mani side or oil fill neck side)?

from the upper intake manifoldi have a line running to the pcv then from the pcv to the top nipple on the filler neck. the smaller nipple on the filler neck that points down i currently have capped cause it leaks oil.

Mahjik

iTrader: (1)

He means to cap the one on the oil filler neck which goes to the UIM, but leave the one that goes down (which eventually ends up on the primary turbo elbow).

dubulup

cap the UIM, and the filler neck...and uncap the lower nipple on the filler neck (that should have a line to the vacuum source)
correct

just out of curiousity...which way does your PCV allow air to pass?

Filler -> UIM

or

Filler <- UIM

mono4lamar

iTrader: (32)

it allows air to go to the oil filler neck... i guess i'll try eliminating the pcv and opening the smaller nipple pointing down! i hope this eliminates my smoke problem but i have a feeling it wont just because it seems to simple

dubulup is this how you run?

dubulup

well, it sounds as if your PCV is backwards...you don't want boost to fill your oil pan.

you want the "hot oil vapors" to be sucked out under vacuum and the PCV (check valveness) to stop boost from entering that nipple.

I have a 1995, which mazda eliminated the PCV...and I run a catch can between the lower nipple and the intake.

mono4lamar

iTrader: (32)

i try putting it in the other way... hopefully i didnt say i put it in backwards! i'll just blow through it and point the air toward the intake manifold! thanks for the help!!!

supraturbo1987

iTrader: (4)

Would there be a reason to remove the PCV and just cap it off?

dubulup

so when it fails it doesn't blow out your front cover gasket (if you have a paper one...and if you don't know if you have a paper one or not...you do)

supraturbo1987

iTrader: (4)

oops...I meant would there be a reason NOT to remove the PCV and just cap it off?

dubulup

so you want to have non-working parts under your hood with more unnecessary parts...like caps

supraturbo1987

iTrader: (4)

i am an idiot. I don't make sense. Sorry! Not really sure what i was trying to ask.

dubulup

let me simplify your decision...in 1995 Mazda removed the system completely (my car never had one from the factory).

we good?