I think the old post was a little unclear now I read it again , the filter on the catch that goes to the pcv valve seems to be the main issue as it creates an air leak that prevents the pcv valve from functioning as intended.
breather filter size for rocker cover? rep added
- Thread starter aaronw
- Start date
I think the old post was a little unclear now I read it again , the filter on the catch that goes to the pcv valve seems to be the main issue as it creates an air leak that prevents the pcv valve from functioning as intended.
dark_knight
Member +
to filter, or not
true. the 'pressure leak' would render the pcv valve useless so unless you remove it from the equation totally, it would be pointless plumbing a filter on a catch can with the pcv in-line..
true. the 'pressure leak' would render the pcv valve useless so unless you remove it from the equation totally, it would be pointless plumbing a filter on a catch can with the pcv in-line..
Put it this way - oriniginal setup for the breather was to connect it to the airfilter inlet right? That means it was getting a fresh filtered air when off boost and when On boost it was pouring bits of oil in to the air inlet and then it was burned with petrol! I kept the same setup but got different filter - and having just the filter would not get rid of oil/petrol mix (as it was set originally).
Your setup does mirror the original but the option put forward was catch can to pcv valve and rocker cover to catch vapour at idle , startup and off boost which your system has left as stock. In this setup it does also catch under boost so my guess is ( mods may help here ) there is residual low pressure from vaccum plus pressure drop from condensate not to mention pcv opening at gear change on a manual car that creates a pressure gradient from air filter to catch can. Some posts talk about moving the filter I guess closer to the catch so the gradient will be greater and double pcv valves in this case so negative pressure that occurs at times from the engine does not suck the oil back but will allow fresh air in.
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Wondering - How much oil over what time and oil type ; what max revs you usually do for that amount of oil and finally if known what bhp you have at those revs?
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Yeah the RPM is important - high oil pressure! High temperatures... etc...
Well at the moment the seal is leaking, so the dipstick stick will show that, but normally - it stays around the same level even after 3K miles oil change intervals - absolutely full to the top mark - that is the petrol mostly in there, not oil.
dark_knight
Member +
sleep
can i just throw a spanner in the works and say that so long as your setup lets you sleep at night, stick widdit..
lol
too many different schools of thought on this one that are not necessarily wrong or right..
can i just throw a spanner in the works and say that so long as your setup lets you sleep at night, stick widdit..
loltoo many different schools of thought on this one that are not necessarily wrong or right..