This last January, our fellow forum member, GEE PASTA, posted a thread on a makeshift Oil Catch Can. He noticed that when working on the lower collector, there was a small amount of oil in the said. I had noticed the same when installing the MREV+ back in October. Subsequently, other members had posted about the same experience.
At that point, I gave serious consideration to installing a Stillen Oil Catch Can. However, due to its size, I did not know where to install it.
Just recently, our friend, DaveO found a great thread in a FX forum,which dealt with this issue. DaveO posted his results and pics of his makeshift oil catch can for his Z.
I took DaveO's lead and have done the same. Many have stated that this is not neccessary. That may or may not be true and I will not argue that point. Nonetheless, for those of you whom may have concerns with regard to this issue . . . Here is my makeshift Oil Catch Can DIY.
The parts needed and shown above are:
1. 2 - 1/4" dia. threaded (male) to 3/8" barbed fittings
**Edit: 2 - 3/8" elbows and 2- 3/8" x 1" nutted nipples
These additional parts are reflected in the pics in post #46.
A 16 gauge anodized Aluminum bracket was added, as well.
2. 2- 5/8" hose clamps
3. 2 feet of 3/8" dia. Fuel line hose **(edited: After some 3 days of using the fuel line hose . . . I swapped out the said for fuel injection hose. This new hose prevents the hoses from collapsing during idling rpm and may prevent the "Sucking" sound, which some have experienced.)**
4. 1- Mini All Purpose Filter with 1/4" dia. threaded female connectors
The 3/8" dia. fuel line hose was purchased at Kragen for $2.40. Everything else was purchase at Home Depot for some $17.00. So, this quick and easy mod cost me less than $20.00.
Note: The filter comes with comments reading . . . "Avoid synthetic oils, chemicals, solvents, paints and fumes which may cause bowl failure."
The above 3/8" dia. hose needs to be removed. This existing hose connects to and from the PCV valve and to the fitting at the lower collector, which is shown.
This is what it looks like after the existing hose has been removed. Note the oil residue at the base of the yellowish PCV valve.
Apply some white teflon tape to the threaded portions of the 2 - 1/4" dia./3/8" dia. fittings and thread them into the filter. Note the "ARROW" stamped on the filter housing. The arrow is the side of the filter which will be connected to the lower collector.
When all is said and done . . . The following pics are the final product. This little project took all of 30 minutes including the snapping of the pics.
I reused the existing hose clamps at the PCV valve and lower plenum connections and used the new hose clamps at the new filter assembly.The glass bowl is easily removed. When removing the bowl, note that there is a thin rubber "O" ring, which can fall out. The entire assembly can be removed at the PCV valve and the lower collector connections in a matter of seconds, if one should wish or need to replace the existing OEM hose assembly.
Thanks to GEE PASTA for pointing out a potential issue . . . And thanks to DaveO for digging up the info to afford me a very simple and cost effective mod.