I was just wonderin if there is a filter type element that needs to be changed every so oftem in the REM Oil Seperator i am gonna order one today and was just curious if there is filter i need to replace at certain intervals. Also would it cuase any adverse effect to pour any collected oil form sperator back into the motor every fill up ? thanx guys

 

It's a porous, bronze filter I think. No problem in putting the 'caught' oil back in the eng.--I'd do it--or in my lawn mower eng. It's still oil.

Dan

 

I haven't had to clean it yet...Paul told me to remove it every few months and clean with simple green, then put it back on...I pour the collected oil back into the crankcase. Can't think of any reason not to

 

I wonder how long these will last because they are designed to remove water from the air and not oil. I guess though the oil probably doesnt do anything bad to them.

 

You're right Michael. All of the filters I have seen being used for oil separation on the Lightning PCV lines are "coalesing" type filters. These filters require a cleaning service in order to maintain efficency. If they are not cleaned periodically, they stop working. There are companies that manufacture oil separators which are designed for just that purpose and require no maintenance but these units tend to be rather expensive and have not yet proven themselves in a crankcase ventilation system which is closed to outside venting. I have seen them in operation on aircraft engines. They are rather small and very functional, but vent to outside air. So...for the meantime...we still have to clean out our filtering media for our filters to keep working.

 

the mod really isn't needed,

all you need is a breather cap and a ball bearing to plug up the hose

 

Hey beefcake...not to disagree with you, but, there is a correct way an an incorrect way to install a crankcase breather. With one breather cap, on the passenger side valve cover, a chip must be installed inorder to recalibrate the air fuel mixture or else ultra lean conditions will take their toll on your engine fairly soon. The only other way to vent crankcase gasses to atmosphere properly is to vent both sides of the engine. That means you install breathers on both valve covers. Unfortunately, this makes your engine no longer smog legal. The cheapest and most simple option, until someone comes up with something better, is to add the oil separator like the one from REM.

 

One thing to remember is that a PCV valve will reduce positive crankcase pressures MUCH better than a breather filter. It actually will allow the engine to perform better by allowing the presurized gasses to be "Sucked" out instead of pushed out.With this occuring at a quicker rate, the engine can spool up a bit quicker as well. This practice is proven with large displacement superbikes(called a pair-sucker) like the Hayabusa, and has shown a 3-4 h.p. increase on the dyno. Thats actually a lot for a 160 rwhp motorcycle.Now, this happens to work out to a 2% increase in power, but may vary with our trucks. Nevertheless it IS an increase. Something to think about before you disable the PCV.

 

I have also seen these vacuum pumps used on V8 drag race engines. The theory is the less crankcase pressure the better. Of course, these engines run for such short periods of time that oil in the crankcase vapors doesn't mean anything. Most drag vacuum systems of this type run through a puke tank which is drained of oil after each race.

 

which hose needs to be plugged up?

 

i'd have to go out and look exactly which one on the passenger side,

i have 2 breathers, one on the drivers side, i plugged the line going from there to the air intake tube

i also added one on the passengers side a couple weeks ago, i still need to plug up the hose i'm telling you about, just have been lazy

 

brap: You put the ball bearing in the hose where it attaches to the PCV valve. It's a rubber connection/fitting. Just pull it off the valve, push the bearing into the rubber connector and then push/attach it back on to the valve. Be sure you have installed an oil cap breather at the same time.

Dan