Hi all,

Started my next new project after discovering on a routine maintenance that my turbo has sucked oil into the intake via the crankcase vent .... new this was going to happen. Oil vapor into the intercooler is very bad, it lowers the efficiency and gets it all nasty in there.

In my case the extra blow by is most likely due to short trips (12 miles a day) during the week days and the rings not seeing enough temp to seat correctly.

So my new project, oil separator for cummins 6.7 ...

What makes a good separator for this engine ? Several things ! This is not a gas engine so it has to be durable, it has to have proper flow, has to be easy to service, and most important, it has to separate !!

Here is the one I am going to use and detailed pics of the break down.

Oil separator unit:


The bottom plug is the drain. The top silver knob is the dip stick, top port is output, middle port is input. The in and out ports are 3/4" like the factory pipes. This is very important ! You do not want pressure to build up in the crankcase !

Dip stick:


Here is the unit with the dip stick removed.

Unit opened:


This shows the collection area.

Unit opened:


This is the unit top. This shows the dual O rings (no gaskets used) and the screens. Some units use a steel wool to trap, other do it with a series of screens. I prefer the screens, easier to clean and get back in and work well.

Overall:


Next, will be working on a mounting setup. Will be installed on the passenger side against the secondary battery box. Plenty of space, nothing in the way and direct access to the crack case tube and turbo intake tube.

More to come ....

Cheers.

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