Oil catch can pics (engine bay)
- Thread starter D1v
- Start date
DO IT LIKE THIS:
Remember... no filter on the catch can.
In the above photo you could move the filter to the 1&2 spark plug vent... though a larger filter there would be a good idea if your running high power.
Check the inside of the 1&2 spark plug vent often as itll get oiled up over time.
im confused as im pretty sure that all oil catch can kits i have seen - have been fitted as originally above.
So your saying that all kits are fitted incorrectly - bearing in mine that some have been fitted by traders such as toby and dave??
Yes.
The vac in the inlet manifold will pull blowby gasses out of the crankcase via the catch can.
Yup, thats what im saying.
99% of people forget (or just dont know) that the PCV system is there to get clean-air into the crankcase as well as stopping pressure build up from blowby.
Most people will look at a race-car setup and think that its also ok for a road car... its not.
Race cars have their oil replaced and engines rebuilt much more often than street cars and because of this dont need the PCV system... they just need to get the blowby gasses out.
Photo is too small to say... cant see where the lines are going.
Blak_Mamber
Member +
If you have a mini filter on the rocker cover, wont oil piss through that all over your rocker cover??
It shouldnt.
There is a filter system under the cam cover to stop most of the oil getting through.
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well it basically goes from rocker cover to pipe on catch can.
other exit on catch can to atmosphere as per photo from nick at tuning developments how is was set up
Well its wrong because most of the oil your trying to stop getting into the inlet gets in via the PCV valve -> inlet manifold line.
This is where the catch can should be.
Captain Starlet
Member +
I myself am running what mwp has described with the filter and not noticed any drawbacks or any spill over.
just looked in my banzai mag at wepr demo car - sacha has got a breather filter on the rocker cover, and only one hose going to the catch can - but cant see where it connects too, but there is only one green hose.
im not calling you a lier MWP - but if you are correct - why has the vast majority (edit - not everyone) got it set up in pictures? inc traders who do motorsport too not just pootle round town on a sunday?
im not calling you a lier MWP - but if you are correct - why has the vast majority (edit - not everyone) got it set up in pictures? inc traders who do motorsport too not just pootle round town on a sunday?
This is what ive been trying to work out too.
Im guessing that someone copied a racing setup and it just went from there...
I dont think many people have really given it a 2nd thought as to what the PCV system on a street car is meant to do, so they just copy everyone elses wrong setup.
BTW, if you want further info on how the PCV system works, there is a chapter about it in the Toyota training manuals on autoshop101.
Blak_Mamber
Member +
Thanks mate. Big help. I actually remember Dave Burwash showing me to use this method on my motor. Which I will now do...
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Rory
Lifer
Yes i agree on the PVC, hence mine is gutted, and acting as a normal breather,a nd not working in conjunction with the inlet manifold vacume to operate.
Cant understand how air is being sucked in via the open port?
It breathes out, as if it breathes in then surely you are going to presurise the engine.
Another question, Why when you take the oil cap off when the car is running, the engine is breathing out, and not sucking in? From what you are saying, this should suck in?
Im not saying your/this setup is wrong, but i know mine works.
The PVC in my setup is gutted and is acting as a normal breather, as is the port between # 1 and 2 plugs.
The setup i have in place is simple but very effective, that works.
Cant understand how air is being sucked in via the open port?
It breathes out, as if it breathes in then surely you are going to presurise the engine.
Another question, Why when you take the oil cap off when the car is running, the engine is breathing out, and not sucking in? From what you are saying, this should suck in?
Im not saying your/this setup is wrong, but i know mine works.
The PVC in my setup is gutted and is acting as a normal breather, as is the port between # 1 and 2 plugs.
The setup i have in place is simple but very effective, that works.