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nissan
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Discussion Starter · #1 ·
Hello,

Some oil catch cans collect only oil, some - oil and water (turned to jelly after some time). In order to find out what is the reason water vapours to enter the crank case, please everybody who drained his oil catch can to participate this Questionary:

1. Engine cylinder volume (1.4L / 1.6L / 2.0L / etc.)
2. Engine mileage
3. Fuel (gasoline / diesel)
4. Crank case ventilation type (simple vent / PCV system with fresh air ventilation of the crank case)
5. Oil Catch Can type (empty can / internally modified can / with filter element)
6. EGR (yes / no / blocked)
7. Average weather conditions between last 2 drains (dry cold / wet cold / wet warm / etc.)
8. Estimated mileage between last 2 drains
9. What you drained (only oil / 20% oil and 80% water / jelly with little oil / etc.)



Before to start thinking about the reason, please wait for some raw "material". :)
 

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nissan
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Discussion Starter · #3 ·
Let me be the second too,

Let me be the first,

1. 3.0L turbo
2. 155 000 km
3. Diesel
4. Simple ventilation system
5. Internally modified can
6. Operational EGR
7. Wet cold weather
8. 1000 km
9. Jelly with some oil droplets


YouTube - Oil Catch Can Drain after 1000 km

The jelly was heated up in microwave, but ramained jelly.
 

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Go Hard or Go Home
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3,197 Posts
Suggestions

Just a suggestion or four,

How about adding oil quantity in motor when last serviced & oil quantity in catch can, max boost & oil type mate?

1. 3.0L turbo
2. 159,000 km (10,000km on new long motor)
3. Diesel
4. Simple ventilation system
5. Internally modified Monza catch can
6. Blocked EGR
7. Hot, dry & wet & cold weather
8. 5000 km
9. Oil
10. 8.3 ltrs
11. ~15mls of oil in catch can.
12. 16psi max setting
13. Dello 400 multigrade
 

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nissan
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511 Posts
Any chance of subtitles? for the video ;)

Interesting tread, haven't fitted catch can , need to before intercooler arrives!
 

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nissan
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Discussion Starter · #6 ·
Any chance of subtitles? for the video ;)

Interesting tread, haven't fitted catch can , need to before intercooler arrives!

To make subtitles is pointless because these are my friends and they don't say anything significant. At the end there was an opinion that the drain is frozen mixture of water and oil. So later we put the glass in microwave and heated it up, but there was no change. The jelly/goo turned to hot jelly/goo. Small oil droplets were visible inside all the time.

If you are planning OCC, consider Provent type. If you go my way, bear in mind that my OCC is far too effective. The result is more often to drain it. The oil condenses first. After that to collect water is useless. Water vapors are not dangerous for the intake. If you buy empty can and stuff it with large surface metal, make it to the middle of the sight glass, no more. And place the OCC away from hot surfaces like turbo or exhaust pipes.

Have a nice time tuning. :)
 
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