What makes the crankcase breather on a 300Tdi leak? Mine leaked; I replaced it; the replacement leaks. What could be causing this?
FWIW not really thrilled with the Allisport breather tank. Oil still gets around whatever baffles they put in it and makes its way to the intake on an otherwise healthy engine.
No sound. It leaks from the hole in the valve cover that the cyclone breather connects to.
I actually replaced the O-ring on mine with a Viton o-ring , no more leaks
Yep, mine has the o-ring. Mine is leaking from the body of the breather, near the bottom.
It's not awful but it's annoying.