cyclone with modified rocker cover hose now being a breather hose. Second pipe to the cyclone is coming from the block. Original rocker cover small exit still goes down to the block as usual.
catch tank: a 76mm pipe bend with a metal mesh and a drain plug at the end, getting any fumes left and returns them to the turbo after the air filter. (where originaly the maf to turbo hose is).
Cyclone drains to the sump via a fumoto valve and also has a check valve incorporated.
PCV valve is ditched and only OEM check valve exists at the metal pipework that the N80 comes.
System has worked efficiently until engine was taken apart, and no oil was found in the hoses, in the catch tank or the cyclone. Check valve on the return to sump hose was used as at the time, worn piston rings pressurised the sump and backflowed the oil to the cyclone. This valve cured it and appears to be working nicely. I think the check valve is open during vaccum conditions allowing any oil to be drained to the sump.
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