looks pretty cheesy to me,  out it goes

That is factory, or at least the clymers manual references it. They simply call it "wire mesh." So, I would say leave it.

JakeB

rigidchop wrote on 03/25/08 at 15:07:58:


Maybe the PO was working on it and lost the original and put that piece in instead.

I think it's just supposed to catch the tiny oil droplets before they go out through the breather, keeping more oil in the crankcase and less in the airbox.  

JakeB

That's the oil seperator and should be put in the top cyl head assy (not in the cyl) just before the breather tube and keeps oil from being pumped ( sucked) out. See #41
http://fiche.ronayers.com/Index.cfm/Module/Main/TypeID/26/Type/Motorcycle/Mak...

I just took mine apart last night and saw the same thing I just hadn't had the time to ask the question yet!

I thought it was a little out of place but if it does that then I guess it prob should stay

T Mack 1 - FSO wrote on 03/25/08 at 17:45:48:


That was at the latest early sixties, when most engines still has just blow by tubes, except motorcycles and atv's which kept the simple blow tube into the eighties. The pcv is great, because it allows the crankcase vapors to be sucked out instead of just staying in the engine and creating sludge. That is another reason to get an engine up to temp and keep it there a while, allowing the oil to reach operating temp and vaporizing the volitile junk in it and the moisture then get sucked out and burned. On the Savage there is no pcv because the crank vent is before the carb, but still in the intake tract. A pcv is used after the carb/throttle body because it is in the portion of the intake that is senitive to vaccum. The pcv has a valve and calibrated spring inside that does'nt allow a huge vaccum loss that would upset the engine. Pcv's and egr's are both good for engines, and to remove either could only lead to decreased engine longevity. There is still even non-detergent oil out there for ppl who have antique vehicles that might be sensitive to modern oils(modern seal material should allow modern oil to be run). Sometimes during an oil change, when the drain plug is still out, I take the vent hose off the head and blow low pressure air thru the sreen, thinking if anything is gumming it up it will be blown out(where? yes back into the engine ). If crankcase pressure is not realsed durning engine operation, oil will begin to leak from the weakest seals, and there will also be excessive oil consumtion past the piston rings. I know this from older engines where a dirt dobber has made a nest in the vent hose, plugging it up.
Some racers put that sort of sreen material in the head where the oil drains back into the crankcase, in case of upper engine failure large chunks of material won't drain back and ruin the bottom end before the engine can be shut down.