Reason to install a catch can

[Jaydo93]

hi guys i have a 2010 zd30crd ute and i wanted to know where di you buy your catch can and how did you install them?
thanks

[mudski]

Here's a pic of how much oil the Can catch's. This was a 6k'ish service too.
20140325_152844 (Medium).jpg

As to the above question. I have some coming. My last lot sold quicker than expected, Albeit Provent copies, they are a fair bit cheaper. I'm running one and have been since I bought the car around 20 months ago. Still works, the plastic housing hasn't cracked, filter works (obviously), the pressure relief valve spring is still there and hasn't dropped out or blocked up.

Its amazing how much oil is actually going back into the air intake when you see this all come out. I wash my filter every service too so it's nice and clean for the next 6thou.

[Hodge]

Will provent stop oil mist completely ? I'm not sure, but my IC is still slightly coated in oily mist long after provent was fitted. Not as much as without the catch can, but I'm pretty sure it's coated the new IC with a bit of oil. Catch can is definitely "catching" as there is a puddle of oil accumulated in the can.

[GU_Mudstar]

All depends on the filter, the best prevention is to not let any engine blow by back into the engine at any time!

Coming from sports car, though highly illegal, alot of us guys tend to just vent the catch can into the atmo, its the best thing to do, and will pro long the life of the engine by miles..... especially on any cars that run a Air flow meters, Skylines, Evo's, wrx etc etc

Seeing how much oil mist and blow by coming from any engine, especially on a diesel, Zd30 and TD42, its incredible how nissan can let this happen, There was a thing us Honda turbo guys used to do to pass it legally, and that was to let the exhaust do the suction and keep it legal, much like a EGR, instead of venting back into the engine, we would re-route it and vent it back into the exhaust, it makes more sense and 9/10 would make it more legal than venting it into the atmo, this scavaging effect and will often be the better solution as it promotes a negative pressure in the crank case and oil catch can pulling all the fumes out and burning it in the exhaust rather than in the engine, though i have not actually seen anyone do it on a commercial vehicle it can be done

[89gqpatrol4x4]

is it worth while putting one on a soon to be turboed 89 td42?

[nissannewby]

is it worth while putting one on a soon to be turboed 89 td42?

The 4.2's are a different beast. Legally you are better off having one and also for your engine as they do work.

[89gqpatrol4x4]

The 4.2's are a different beast. Legally you are better off having one and also for your engine as they do work.

Thanks, I knew about the benefits of having one on a skyline but as the td42 is very simply I wasn't sure. Another add to the list LOL