Keep your combustion chamber clean Oil Seperator

aldive · January 7, 2006

I installed the oil separator early this morning.

The install is rather simple. Just locate the vacuum line from the PCV valve to the intake manifold and disconnect it at the manifold. Insert the splicer into the free end of the vacuum line and add new 3/8 " hose. Next put a new hose on the nipple on the intake manifold.

I temporally mounted the filter using tie wraps. the line from the PCV vale was cut to length and attached to the inlet side of the filter, The line from the intake manifold was attached to the outlet side of the filter.

The truck was started and evaluated for leaks; none were found.

Time will tell how much residue the catch bowl accumulated.

JDraper · January 7, 2006

Al, great minds must think alike

...I installed mine this morning too..

Oil Separator with 3/8" NPT Fittings from Craftsman--$21
2' of 5/8" Radiator Hose and 2 90° PCV Fittings from Advance Auto--$4
2 Brass 3/8" NPT to 5/8" Straight Barbs and one 5/8" to 5/8" Brass Barb From Bossert's Hardware--$5
Keeping oil out of your intake manifold--Priceless.

aldive · January 7, 2006

Jeff, you were the greater mind; I paid Steeda way too much for mine.

Nice install, my friend.

Rick · January 7, 2006

Jeff, did your PCV have the electrical connection? I can't tell from the photo.

MONMIX · January 7, 2006

aldive said:
You would still need one for the PCV line.

That is for the PCV line.

the other hose from my intake goes to the IAC

JDraper · January 7, 2006

Rick said:
Jeff, did your PCV have the electrical connection? I can't tell from the photo.

Yep, my PCV has the electrical connection on it too...

sparky2263 · January 7, 2006

The problem with simply putting a filter on the valve cover to filter incoming air (and allow blowby to escape to the atmosphere) is unmetered air. When the PCV system is flowing in (95% of the time) the air that comes through is not seen by the MAF slightly leaning the mixture. Certainly, fuel trims will compensate for it, but is it a good idea?

Dunno. Ain't gonna find out either.

MONMIX · January 7, 2006

sparky2263 said:
The problem with simply putting a filter on the valve cover to filter incoming air (and allow blowby to escape to the atmosphere) is unmetered air. When the PCV system is flowing in (95% of the time) the air that comes through is not seen by the MAF slightly leaning the mixture. Certainly, fuel trims will compensate for it, but is it a good idea?

Dunno. Ain't gonna find out either.

I dont understand.

The MAF sees every thing that goes through the intake to the TB. No more no less.

Does the air that goes IN through the filter on the valve cover end up in the intake some how ?

sparky2263 · January 8, 2006

Where the filter is located on the valve cover, a tube would normally go to the air intake tube. That way, air drawn in through the PCV system is seen by the MAF.

Remove the tube, put a filter on it, and the MAF doesn't see it.

Yes, the air that goes in the filter ends up in the intake. Through the PCV valve. Remember, the PCV is a metered vacuum leak.

Glacier991 · January 8, 2006

It would be of interest to see LT fuel trims before the mod, and then after. I understand what Sparky is saying, I just sense that LT trims would make up for any leaning tendencies.

I don't know if it is just me but have you folks noticed how much smarter as a group we are becoming on this board that's to the ever increasing brain trust here? A couple years ago no one discussed fuel trims, FMEM etc... and the like. Now it is more commonplace. I like it.

Btw...Welcome to Elite status Sparky

sparky2263 · January 8, 2006

Thanks Glacier. There are definitely some sharp guys here. I like it.

Turdle · January 8, 2006

To back up what sparky say's, I remember the install instructions for my Pro -m meter say if you use a crankcase breather, it must have a tube going to intake located between maf and throttle body.

MONMIX · January 8, 2006

Glacier991 said:
It would be of interest to see LT fuel trims before the mod, and then after.

We can do this easily.

Either my MAC or my PRO-M doesnt like cold. Any thing 40 or less the truck runs like poop. ( another topic another time )

In the winter I run my stock intake, all hoses and breathers in stock locations.

Summer time the MAC intake as shown in the photo is my set up.

I have a Matco MD-1000 scan tool which can pull LT fuel trims.

This would be cool with me. I obviously want to run this thing at its ablsolute optimum

aldive · January 8, 2006

Kevin, why do you think the Mac and Pro M don't like cold?

MONMIX · January 8, 2006

aldive said:
Kevin, why do you think the Mac and Pro M don't like cold?

Technically ?
or practically ?

When it gets below 40 it takes on the " bad O ring " characterstic. Runs like absolute ****, fuel out the exhaust big time. Till it gets warm then it purrs like a kitten.

I put on the stock intake and the problem is gone. Simple deduction tells me the issue is intake OR PRO-M.

A perfect blend of laziness and contentment leave me to put on the stock intake and not bother with investagating or diagnosing.

aldive · January 8, 2006

Do you run the Pro M with the stock intake tube? Does this combo also cause your problems?

Rick · January 8, 2006

I run the Pro-M with the stock intake tube. No problems.

MONMIX · January 8, 2006

aldive said:
Do you run the Pro M with the stock intake tube? Does this combo also cause your problems?

No, totally stock set up in the winter ( other than K&N filter and cut open intake box )

aldive · January 10, 2006

Has anyone else installed a filter on the PCV line on an Explorer?

Skibum1989 · January 10, 2006

I attemped to build something similar to this a few months ago...
http://www.explorerforum.com/forums/showthread.php?t=143571&highlight=pcv+jar

but it was pretty leaky so i gave up on that enterprise altogether.

Keep your combustion chamber clean Oil Seperator

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