engine blowby

[Hotshoe]

Is it possible you're putting too much oil in the crankcase?

[mike1969]

Ya did install the 2 gaskets and metal plate at the top?. ............lm

Thanks Dave,That eliminates another possibility.

Any suggestions?

Yes,I made sure to use the gaskets with the 2 holes at the top.

Along with the air coming through the vent hose is a lot of oil. It seems to be ok when riding
on the level.The problem comes when going up a mile and a half long hill. After going up the hill I got about an ounce or so of oil dripped from the vent hose. There is also oil dripping from the left side header pipe where it connects to the head.


The bike has plenty of power, starts instantly and sounds great.

This thing is driving me nutz!

[mike1969]

Ya did install the 2 gaskets and metal plate at the top?. ............lm

Thanks Dave,That eliminates another possibility.

Any suggestions?

Yes,I made sure to use the gaskets with the 2 holes at the top.

Along with the air coming through the vent hose is a lot of oil. It seems to be ok when riding
on the level.The problem comes when going up a mile and a half long hill. After going up the hill I got about an ounce or so of oil dripped from the vent hose. There is also oil dripping from the left side header pipe where it connects to the head.

The oil is at the top notch of the dipstick.


The bike has plenty of power, starts instantly and sounds great.

This thing is driving me nutz!

[Hotshoe]

The oil around the header would make me think about proper torque of the 14mm cap nuts on top of the head and 10mm nuts by the spark plugs, possible head gasket issues, a crack in the head or deformation of the mating surface between the head and cylinders.
I saw you mention the head gasket several times, did you change out the two o-ring seals that go around the the oil passage dowels between the head and cylinders?

[mike1969]

Hotshoe,Yeah,New head gasket and o rings.

[davomoto]

Mike, just a thought. Is the oil at the top level of dipstick with it just setting on top of the threads, or with it screwed in? Holes in breather plate towards the front of the engine?

[mike1969]

Oil at the top level without being screwed in. The vent holes on the upper part of the engine closer to the rider ( wrong?)