LS-EXUAL
Those little rocker cover filters.....
As the title says........what are those? I have seen them on numerous highly modified and stock Commodores, they look like pod filters and you screw them into the rocker cover where you usually fill up with oil.
What are they and what do they do?
Last edited by Cobez; 12-05-2008 at 03:32 PM.
Originally Posted by wikky
Banned
Just breathers I throught, they usually run into your TB for some reason?
LS-EXUAL
Really? I have only ever seen them (or noticed them) screwed into the oil filler holes on rocker covers.........
Ecotech Power
Their on older cars and they are an oil breather cap. Their used for ventilater oil systems. I have one at home, i turned into a key holder, ill post pics and see if this is what you mean. I cant say ive seen one on a modern car.
Drop A Patch....
They are on heaps of modded cars, They are an oil breather.
Not sure if there is actually any point to them, but ive seen them on the oil lines going to catch cans and stuff as well
LS-EXUAL
Yeah that's another place i have seen em too! ^^^ I have a poster on my wall of a blue VK SS with a big stainless steel catch can that has one too.
Would they really do all that much though? I'm not gonna buy one or anything, i was just curious. I have always wondered what the **** they are.
Banned
Dosnt it have to do with emmisions and stuff, like on our cars the breather is routed to the TB and keeps all the "harmfull emsissions" locked up somehow, like is this what the charcol canister is for?
LS-EXUAL
I know the charcoal canister is for vapours etc, but i would have thought this filter was for the oil somehow. It looks identical to a pod filter on top of a little tube and you screw it into your oil filler cap on your rocker cover. I always thought they were a cosmetic thing that didn't really have much of a purpose.
Banned
If I can remember correctly V6's didnt have any breather hoses from their Rocker covers. I know what your talking about because I was playing with ne yesterday in my mates old Cleveland that we are putting to his ford. He has taken all the emmision gear off his engine (not that it had much to start with compaired with our cars). But if you take my car for example, the 5.0L. They come stock with hoses that come from the front of the rocker covers that lead into the TB, one of those hoses even has a little valve on it for some reason.
LS-EXUAL
Same thing maybe i'm guessing.........??
Site Administrator
As mentioned they are to help with when you get a buildup of oil vapour (hot pressurised oil/air mix). They simply let this vent to atmosphere rather then into the combustion chamber again dropping the octane rating.
THEY ARE VERY ILLEGAL!!
A catch can is just a better improved setup of the above, it allows the oil vapour to pass through a series of baffles to slow the oil down and seperate it from the air. The air will exit via the filter, and the oil collected in the catch can or drained back to the sump.
Selling FG G6E Turbo and buying a N/A Supra
LS-EXUAL
Ahhhhhhh i see!! So basically, venting it into the atmosphere is like letting off air con gas into the atmosphere legality wise?
Site Administrator
Pretty much. You can tell when a car is running them, can smell the oil vapour and will have a big black spot on the underside of the bonnet.
Selling FG G6E Turbo and buying a N/A Supra
LS-EXUAL
Errrr. It's amazing that car magazines will publish alot of that stuff in 2 page spreads etc. If the cops had that feature car around their local area they could sit and scan that page for things to defect that person for and BANG, they could pretty much write up a defect notice before they pulled him or her over next time they saw it.
Ah wells.
Site Administrator
Most modded cars that get two page spreads don't see much sunlightYou know TOYGMH, the VH (from memory) wags? Lives near me, seen it out twice in 4 years
Selling FG G6E Turbo and buying a N/A Supra
LS-EXUAL
Yeah i have seen that one. Screw having a car like that and not driving it. I had better tell my mate Daniel to take the little filter off of his VL turbz. Silly gino. It's so sick though bruz.
I have them on all my breathers on my mini lol..... fresh rebuild so not to much comes out of them, but my old motor at the right angle you actually see the vapor coming out
Japanese scientists have created a camera with such speed that they now can photograph a woman with her mouth shut!
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