- Wed Nov 09, 2016 6:01 pm
#63896
Search the old messages, Graham...
The reason oil is PUMPED out of the engine breather (and into the air filter) is due to poorly routed breather pipes.
The main breather vent pipe of the top of the oil tank can not have ANY dips or kinks in it or condensate sludge accumulates in the pipe. Then starts to 'Pack-Off' and the motors net internal pressure increases. Oil mist begins to settle in the pipe, and next the slug of elephant snot and oil is finally blow clear; into the catch-can and or the air filter and or Primary chain-case, and or the timing case...
The catch can fills and the gloop spewed out of the breather pipe TRIES to drain back into the timing case, the other smaller dia drain from the catch-can cause the primary chain case to slowly fill with oil. Then the path of least resistance is into the airfilter.
If you want a detailed explanation and instructions on how to fix, email me on: royalenfield AT clear DOT net DOT nz
I will send you a Word doc with all the info; simple and easy to rectify and no cost involved.
OR, search the old messages...