- Mon Sep 25, 2017 11:29 am
#71107
Mick,
not sure you understood my original post, I'm not talking about oil ways INSIDE the engine, but blocked EXTERNAL breather pipes, particularly the bit of 1/2" black hose that comes off the union on the top of the oil tank.
You say the oil tank is pressurised, and to some extent that is correct with the Electra-X: along with the later (2004 onwards) classic Bullet engines the factory changed the breather design, so that instead of venting into a breather pipe from the left side of the crankcase, the engine now breathes THROUGH the oil tank, and if the external breather hose get blocked by condensate (usually as the result of bad routing) it will fully pressurise the oil tank. The oil tank has through vents to the timing chest to allow for the return of oil, but excess pressure in the oil tank will also pressurise the timing chest. This is what forces oil from the timing chest up through the small hose back into the catch can, from where it will overflow into the air box if the original blockage in the main breather hose isn't cleared.
You probably managed 200 miles in that it took that long for the main breather hose to clog up. I suggest you go back and at least remove and clean out the hose, and if you do re-fit it to the catch can, make sure it has a constant rise with no dips where the condensate can collect and congeal (try fitting the straight end to the oil tank and the 90° bend to the catch can). I would try that before any to-end strip, as it is was a very common problem with a simple remedy.
A.