What's in the OCT after 4 months?

[drexchan]

Many doubted the functionality of an OCT and today i am going to show you the proof that an OCT does work.

NOthing to do, so took out the OCT and.. hey! It's heavy.. Shake it a little .. liquid inside apparently!

It works..

So i drained the oil out.. it captured about 100 ml of the PCV blow-by in extremely dark color: drain-out from the OCT

Accidentally spilled it and you can see how dirty it is: it's dark and dirty!

So, i washed the OCT using petrol. Just pour some petrol through the hose and do a "milk shake"... this is what i got: yucks!

Discovered some leakage from one of the hole that was supposed to be sealed. Remove the seal and redo a silicone oil seal.

Then reinstalled it back and started the engine... seems like the idling now became irradic (from the vacuum gauge reading)..

Must be something wrong in the previous setting (remember the leakage?) that the ECU has adapted to.

So, no worries, reset the ECU and make sure everything is working fine, re-adapt the throttle position and everything went so smooth.

So, OCT works. Just clean it once a while..

 

[DLegend]

yeap, OCTs do work. I poured the contents of my OCT out in front my 'non-believer' mechanic, then he now believes.... hehehe...

 

[Doink]

what is oct???care to pm me wat it means?thank you

 

[ftzone]

doink,

OCT = Oil Catch Tank
Prices ranging from RM90-RM300 depending on brands and quality.

 

[rattan]

Can u explain where to where is a OCT installed... saw there is one input and one output.... tq

 

[drexchan]

PVC valve --> OCT ---> intake manifold

 

[gavan]

aikz? some said the OCT is installed where the valve rocker cover connects the hose to the air-filter box?? im confused now :(

 

[DLegend]

same thing, because the air still flows into the intake manifold from the airfilter box.

 

[drexchan]

aikz? some said the OCT is installed where the valve rocker cover connects the hose to the air-filter box?? im confused now :(

Tried that for 4 months and nothing was catched inside the can. What you need to do it to disconnect the hose to the intake hose, seal the nipple, and install a small breater on the hose. Like this: engine breather

same thing, because the air still flows into the intake manifold from the airfilter box.

Not same. One has vacuum, one doesn't.

from the intake hose, air is being sucked into the cam cover.
from the cam cover, air is being sucked into the intake manifold. However, during hard runs (full throttle), the pressure inside the cam cover can be so high that the vacuum of the manifold can't neutralize that. This will result in having oil vapour kicking back to the intake hose. That's why some car has an oilly intake hose, filter element (not K&N), and throttle body.

Disconnecting the breather hose and selling the nipple will prevent these. No need OCT.

------------

To know how much oil vapour your engine can generate... open the oil cap after the engine is being shut down. See the vapour fuming out..

 

[rattan]

I wonder, if this OCT is so called effective why does the car manufacture's does not include one even as an optonal specs ?

 

[khguan]

normal car users duno how to maintain an OCT mah... n additional cost to production too...

 

[AXXeLL]

i agree with rattan,
if this OCT is so effective, why car manufacturers neither include it in original spec nor optional spec?
If car manufacturer's could install in HID's, vibrating seats and other gadgets... why not install this effective gadget which only cost from Rm90 - Rm300...

if car owners knew to service their vehicle, clean their air filters and drain their black oil....
why would they not know to maintain this OCT ?

*dont shoot me pls, correct me if i'm wrong... hehe...

 

[drexchan]

because.. if they do so, we will have one project less to DIY.

 

[huakenny]

because.. if they do so, we will have one project less to DIY.

lol...........

 

[hey_guy]

Ok... i found this useful thread when i happen to do some research on OCT and breather :)

I have some questions maybe kinda stupid to some :p
- Can i use a breather without an OCT and vice versa? Whats the effect if doing so?
- Air flows thru breather to the cam cover which the air i believe is hotter than air from the intake hose. So isn't not so good since the air is hotter goes into the cam cover?

Thanks in advance for answering my questions. Cheers~