Harley Davidson Evolution Oil Breather

8 Aug 12 2019.

Harley davidson evolution oil breather. In you 89 model the crankcase breaths from behind the oil pump through a tube that runs to the backside of the air filter assembly. 48 out of 5 stars. My question is i have a 07 roadking with 11000 miles on it and iam getting oil in my breather.

What causes that is the oil that was in the oil tank has passed through the oil pump into the cases. Change The Oil In A 1340 Evolution The 1340-cc Evolution engine was used by all Harley-Davidson motorcycles built between 1984 and 1998 when it was largely replaced by the new Twin-Cam 88 engines. Rick since 1994 Harley has used what we call a head breather system in that the crankcase breathers are located in the heads.

An internally broached allen allows for a quick and hidden installation method with the stainless breather element and circlip finishing the job. The design of the oil filter on the shovelhead uses one oil line which feeds the oil back through the filter and into the oil tank. Harley Evolution Engine Breather Diagram Pii Organisedmum De Harley Davidson Oil Pump Diagram Wiring Schematic Diagram Harley Evo Oil Line Fitting Creativehobby Store.

As a result a fine mist of oil in the vented crankcase air condenses in the air cleaner and must be cleaned out from time to time. Engine Breather Oil Collector designed to collect the oil mist. This is an age old problem for the Harley engine.

Radius breather bolts from Lowbrow Customs feature an innovative design with 5-ply sintered stainless steel mesh providing the proper breathability for your motor while keeping a slim profile and a completely custom look. V-Twin Mini Sifton Breather Bolt Kit for Harley. Do a leakdown test on it.

Discussion Starter 3 May 22 2020. Heres a drawing depicts the umbrella valves contained within the middle rocker box. Find the SS Crankcase Breather Reed Valve for 1993-1999 Harley Evolution Dyna FXR Softail and Touring models at Get Lowered Cycles.