[DIY] Oil catch tank

[sarled]

Well, I guess if you are diligent in changing out these then it should be okay, especially if you haven't got paper elements inside. Maybe the trick here is to buy the filters that you are using (without paper).

 

[vr2turbo]

Taikos... m-o-d-i-f-i-e-d filter.



I used to own a OCT but stupid me sold it. Now I'm too scrooge mcduck to want to buy another one.

Forgot you are DIY sifu......

---------- Post added at 11:38 AM ---------- 6 hour anti-bump limit - Previous post was at 11:34 AM ----------

No doubt it may trap oil. I don't dispute that. It's just the loss of vacuum that I worry is being overlooked. If your filter paper/element gets wet with oil, you lose vacuum. If your filter container gets filled with oil you will also lose vacuum. With this loss of vacuum your PCV system isn't really working to bring air/gasses out of your crankcase. This means your oil flow rate to your bearings is compromised. Your main and conrod bearings are probably suffering and you may not know it. Yes, your engine works but do you really know how well your bearings are doing now? Think about it - don't you think manufacturers would have added a RM6 filter for this system if there were no risks involved?

For my Hyundai, the link is from the left nozzle to TB. The right link with PCV valve I have added an air leak device and yes I do check the filter regularly. The oil caught is very little only and once the bottom of the filter has oil in it, it is changed....

---------- Post added at 11:39 AM ---------- 6 hour anti-bump limit - Previous post was at 11:38 AM ----------

Well, if any of these DIYers are like me, I have about 15 of those RM6 filters at home and change every month or so. Other times I just pour out the oil. And since my filter doesn't have any paper elements, I think the vacuum loss for me is minimal or none.

Just recently I inspected the hoses and the filter and found that the clamp around the filter wasn't completely sealing the connection between the hose and the filter so I could hear some vacuum noises there. Seems the rubber hoses will crack and become brittle over time. Lesson learnt is buy good hoses.

Yup, using the high pressure fuel hoses. Last much longer....

 

[cvkit17]

For my Hyundai, the link is from the left nozzle to TB. The right link with PCV valve I have added an air leak device and yes I do check the filter regularly. The oil caught is very little only and once the bottom of the filter has oil in it, it is changed....

Taikor, what air leak device are you using? pressure gauge?

And you said that u change the filter when there's oil at the bottom of the filter...did u mean the small reservoir below the filter? Mine has catched some amount of oil.. 2ml like that. Dont really knw when to change unless open up the filter and see if it's clogged. Even so, I need some gauges to do that :hmmmm:

 

[vr2turbo]

Taikor, what air leak device are you using? pressure gauge?

And you said that u change the filter when there's oil at the bottom of the filter...did u mean the small reservoir below the filter? Mine has catched some amount of oil.. 2ml like that. Dont really knw when to change unless open up the filter and see if it's clogged. Even so, I need some gauges to do that :hmmmm:

If little can still use, if not change the filter as it is not too expensive.

Air leak by suction, controlled by FICD from Kembara. The unit can be seen in the middle of the pic, on the right side of the DIY OCT. However if your car is not a guzzler you won't feel much effect. My Hyundai is a manual 1.8 and is under powered and guzzler badly. The air leak has improved my power slightly and I got more mileage out of it.

 

[cvkit17]

What's a FICD lol..apology for being noob wakakaka

Hmm..I think it is very hard to know how much vacuum pressure is needed for the system to run correctly. When we install the OCT, we already increases the static pressure in the system. I'm not too sure of them system itself actually..so my question here is..does it require high suction for the system to work smoothly without any problem; correct amount of oil being snuffed out?

 

[vr2turbo]

FICD is fast idle control device. Kembara uses a manual one that is why that was used and can be tuned.....

 

[tham.wai.keong]

Um... I change it every 20k km. But even then it's barely 1/4 full

This is an old topic, but just wanted to make an enquiry.

The oil fills up slowly in the fuel filter, but long before that, wouldn't the oil fumes
clog up the filter paper in no time, restricting air flow and vacuum suction as well ?

I had been doing the same thing for my old Iswara, though with a different routing.

I unscrewed the PCV valve from the engine cover, poked a small vacuum hose into the
outlet there, and connected the other end to the bottom inlet of the fuel filter.

Then I connected another vacuum hose to the filter's outlet on top, and routed the other
end to the PCV valve's inlet. That way, the oil fumes are filtered before it reaches the valve,
keeping it relatively clean of oil sludge.

I was using a Suzuki fuel filter before that, somewhat bigger than the Iswara's, but hard to
obtain in the parts shops.

 

[nassershah]

hi tham .., I've received email on this particular matter, thanks a bunch for the informations, though it's an old tread, I do appreciate the knowledge. I've changed to Hyundai matrix and gave the kancil to my son d.. lol.. God knows what he had done to the car by now..! Thanks again for the efforts and informations.. at least I now understood if one day my son can to me and asked... hahaha.. Thank you 3x..!

 

[Kevinho]

Hey Guys,
Anyone knows where to get these parts ?
It's to make an oil catch can.
http://www.team-bhp.com/forum/diy-do-yourself/117722-diy-cheapo-oil-catch-can.html

Elbow fitting
Pneumatic press fit elbow fittings
And the black colour glue this guy used.

 

[vr2turbo]

I just use a RM7 carb plastic fuel filter as my oil catch tank.....lol

 

[Kevinho]

I just use a RM7 carb plastic fuel filter as my oil catch tank.....lol

Me too bro, I used the iswara fuel filter like how izso did .
Thinking of doing this on the Vios dugong lol.

 

[vr2turbo]

Me too bro, I used the iswara fuel filter like how izso did .
Thinking of doing this on the Vios dugong lol.

Give you something to do. Plastic carb one nothing to do, just hook up.....lol

 

[Izso]

Hey Guys,
Anyone knows where to get these parts ?
It's to make an oil catch can.
http://www.team-bhp.com/forum/diy-do-yourself/117722-diy-cheapo-oil-catch-can.html

Elbow fitting
Pneumatic press fit elbow fittings
And the black colour glue this guy used.

JBWeld you can't buy here. Superlon black coloured sealant might work but I'm not sure how it'll hold up in engine bay heat. And if you're gonna make this skip the indicator as that's usually the biggest culprit for vacuum leaks.

 

[Kevinho]

JBWeld you can't buy here. Superlon black coloured sealant might work but I'm not sure how it'll hold up in engine bay heat. And if you're gonna make this skip the indicator as that's usually the biggest culprit for vacuum leaks.

Hmmm, good tips bro.
I was reading some stuff about the blow by gases.
Is it true that there is two hoses where one is routed to the intake manifold and another before the intake manifold ?
Which is one is the PCV and the other is the breather hose. One hose routes the gas back into the intake manifold at high load and another route the gas back at low rpm.

 

[Kevinho]

I uploaded the following document I found online with a picture of the blowby gases

 

[Kevinho]

is this the breather hose for the myvi K3-VE engine ?

shouldnt we route the breather hose to the oil catch can as well if the article says the breather hose also has blow by gas.

lol, i'm in need of experts opinions.

 

[Kevinho]

I never understood why engine manufacturers routed blow-by gases back into the intake manifold. All the oil vapour (read : Oil) gets trapped there and completely clogs the throttle body and intake manifold causing sluggish performance, inaccurate idling and in some cases engine dying off due to overly low idling.

In order to counter this problem, some budding aftermarket enthusiast created the Oil Catch Tank (OCT) and connected it to the PCV valve catching all the oil vapour therefore keeping the intake manifold relatively clean.

Picture taken from ZTH sales pages, copyright and all belong to the owner, not me​

So I was thinking, is there a DIY-er way of doing this OCT without spending too much? Yes there was.

Tools needed :
1. Iswara Fuel filter
2. Automotive rubber hose
3. Clamps

Locate the PCV valve in your car (usually it's a rubber hose going from your cylinder head going into your intake usually before the throttlebody).

Replace this hose with your makeshift OCT and you're pretty much done.

The Iswara fuel filter has paper filters in it which will trap the oil vapour (read : Oil) and collect it in the filter. So be sure to replace the filter once it fills up (eventually). RM6 bucks give or take!

Enjoy!


Disclaimer : I've only done this for my Wira, Myvi and Toyota Unser without adverse effects. I do not and will not claim that this works for all car makes and models

oh yea, you done it before lol.

 

[Izso]

is this the breather hose for the myvi K3-VE engine ?
View attachment 571442

shouldnt we route the breather hose to the oil catch can as well if the article says the breather hose also has blow by gas.

lol, i'm in need of experts opinions.

I've done this before. It didn't really work well for me. The plastic oil filter kinda compressed from the vacuum.

 

[Kevinho]

JBWeld you can't buy here. Superlon black coloured sealant might work but I'm not sure how it'll hold up in engine bay heat. And if you're gonna make this skip the indicator as that's usually the biggest culprit for vacuum leaks.

What if the indicator instead of using the press fit type but the one like the brass elbow fitting wan like the one on top.
Is it still possible that it's going to leak ?

 

[Izso]

What if the indicator instead of using the press fit type but the one like the brass elbow fitting wan like the one on top.
Is it still possible that it's going to leak ?

I dunno. The leak I've usually seen happen is where the indicator is connected to the can itself.