Dec 29, 2011 · If you put a crankcase breather on, gases cannot exit your crankcase until the pressure inside builds ABOVE ambient. So, with a breather to atmosphere you are running …

Feb 17, 2016 · Harley Davidson Touring: How to Create Bypass Breathers Air cooled bikes like Harley big twins expand and contract with the heat soaking into the cylinders, much more so …

Oct 26, 2020 · 3) put the displaced breather element on the incoming side of that mini air filter (which temporarily becomes outgoing during the behavior in question). So basically, you would …

Feb 26, 2009 · We have a new valve cover breather assembly that replaces the cap on the oil fill tube located on the driver's side of the intake of the late model Hemi engine. The base of the …

Jan 14, 2016 · To answer the OP's question, you could vent the crankcase to atmosphere but you would have to open up both valve covers to do it properly and install filter/breathers on each …

Mar 8, 2025 · The "hunting" without the breather is interesting, still not sure why a breather helps. Assuming the other valve cover hose still goes to the air cleaner so it should not be needed. In …

Feb 2, 2016 · Figure 1. Filter cover hold down bolt. Step 2 – Remove filter element With the filter cover removed, the air filter is now accessible. Remove the (3) T27 Torx fasteners and retrieve …

Jun 17, 2019 · If you go to an autozone or oreillys, you can buy like a $12 crank case breather filter. Basically youll still that on the end of the tube coming from the manifold, and find …

Jun 7, 2016 · I've seen several setups on the 2.9 Whipple like the Whipple oil separator and a small breather filter on the bottom of the oil fill, Whipple oil separator and a hose going going …

Dec 14, 2014 · There is vacuum due to the PCV system. Intake manifold vacuum draws air/vapors from the crankcase through the PCV valve. That's the vacuum you feel. The hose …