Oil in the intake Plenum

[silverFX]

First, is this normal? Second, I don't like it and would like to make this stop. How?

I am installing my new PowerLab spacer.

(side help, what size socket do I need for the spark plugs) Yes, I have them already but maybe you guy have a tip or two for me before I change them out.

TIA

 

[fxlr8]

Socket

5/8" hex

 

[EG3]

it's normal but there's a cheap way to solve it. Try this:
http://www.infinitifx.org/viewtopic.php?f=14&t=802

Alternatively, you can buy some aftermarket oil catch cans but this one is pretty effective..

 

[Frankiago]

Completely agree with Ege, except that seems to be a little excessive. I had oil in my plenum most times I've seen it, but the DIY oil catch made a very big difference. Just remember to remove the filter though, it comes out easily with a pair of pliers, and if you're worried about the oil passing right through when the filter is removed, don't be. There isn't enough velocity for the oil to continue on the path so it hits the side of the catch and swirls around at the bottom.

There's also a nifty little drain plug at the bottom so you don't have to unscrew to drain.

The o-ring in mine got expanded somehow though...

 

[LIRob]

Side note on the spark plugs. You're going to need an extension for the spark plug socket.

I also found a breaker bar very helpful for removing the old plugs. As I recall they're torqued down to around 18 ft-lbs. The additional leverage the breaker bar provided made it much easier to break them loose. The swivel head also allows you to finger tighten during the install which helps prevent cross threading.

I don't have enough posts to put up an image of one but if you go to Google Images and search on breaker bar you'll see what I mean.

Torque specs:
Spark Plugs = 18ft-lbs
Coil retaining bolts = 36 inch-lbs

Good luck.

 

[Chedman13]

it's normal but there's a cheap way to solve it. Try this:
http://www.infinitifx.org/viewtopic.php?f=14&t=802

Alternatively, you can buy some aftermarket oil catch cans but this one is pretty effective..

I bought the Jeg's kit - works great, catch a lot of oil. I left the filter in there had no issues of it clogging so far (1 yr). If it ever goes bad I'll just buy another kit from Jegs.

 

[theMerchant]

here is another good read, they talk about making your own separator also.

http://autospeed.com/cms/article.html?&A=0338


and for you die hard Nismo guys (not naming names lol)
http://www.nengun.com/nismo/oil-separator


and this one: nice and shiny
http://www.forgemotorsport.com/content.asp?inc=product&cat=0002&product=FMUNCT

 

[EG3]

here is another good read, they talk about making your own separator also.

http://autospeed.com/cms/article.html?&A=0338


and for you die hard Nismo guys (not naming names lol)
http://www.nengun.com/nismo/oil-separator


and this one: nice and shiny
http://www.forgemotorsport.com/content.asp?inc=product&cat=0002&product=FMUNCT

$400 for Nismo, $100 for Forge and machining for the diy one?!? I still prefer the one @ the .org.. It costed something like $35-40 for me and works very well and very easy to do.....

 

[theMerchant]

ya, me to . I did the diy today using the univeral air/oil separator. Only thing I would suggest is to plug up the botton of the unit, since it allows air to be sucked back up (causeing a 'leak' in your PVC line). parts cost me ~$25

 

[Frankiago]

I don't get what you mean by "plug up the bottom of the unit." Mine is exactly like I bought it, except filter removed from the inside. The nipple at the bottom that covers the small valve doesn't allow air in nor oil out of the hole on mine. Shouldn't be required to plug anywhere, as this is just a drain line, held shut via spring pressure I believe.

 

[theMerchant]

I don't get what you mean by "plug up the bottom of the unit." Mine is exactly like I bought it, except filter removed from the inside. The nipple at the bottom that covers the small valve doesn't allow air in nor oil out of the hole on mine. Shouldn't be required to plug anywhere, as this is just a drain line, held shut via spring pressure I believe.

I noticed when the car was on the positive air pressure from the plenum sucked air in from the bottom nipple (no matter which way the valve position was). I opened up the bottom assembly and its a basic needle valve , but air can still come in , not out. Look at the original posts pics you can make out a small cap on the bottom. Anyways it doesn't hurt to plug it since we want to catch the oil.

 

[theMerchant]

Im replacing my DIY oil catch with this one: (about $30)

 

[theMerchant]

just an update:
Oil catch installed :top:

View attachment 148981

View attachment 148982

 

[fxlr8]

Cool, I need to put one on mine.

 

[theMerchant]

Cool, I need to put one on mine.

hopefully my pics will give you an idea as to where to mount it. I used self tapping screws on the hood sensor and used provided brackets.

 

[fxlr8]

hopefully my pics will give you an idea as to where to mount it. I used self tapping screws on the hood sensor and used provided brackets.

Unfortunately I don't have much room with my noise maker. :frown: