Yangdong Y385 Siromer 304 engine breather blowing oil

steveroyce · Apr 29, 2017

Hi Guys we have a siromer 304 with a yangdong Y385 engine, we did a service on it and changed the engine oil and filter, now when the revs get reasonably high it blows oil up to the breather ( respirator) and it leaks out, should there be a gasket on the top of the breather, we just have a wing nut with a metal lid and no seal or gasket, it did not seem to be doing this before the oil change any ideas ?

steve

RonMar · Apr 29, 2017

You are refering to the breather on the right side of the engine block? During the oil change, did you overfill it? Did you use the same type oil(I use Rotella T 15W40) Excess oil will get splashed and more will be blown out thru the breather. Thinner oil will be more easilly carried thru the breather.

steveroyce · Apr 30, 2017

we have put in 7 litres of 15w40

Bob Rooks · Apr 30, 2017

Seven liters is just shy of two gallons. Seems like a bit much.

RonMar · Apr 30, 2017

And the level on the dipstick is?

steveroyce · May 1, 2017

from what i can see its not even showing on the dipstick now, it was about 3/4" up the dipstick when we filled it the dipstick looks like it has had something rubbing on it as it has like a wear mark on it