what does it mean that oil is coming out of the crank case vent filter? head gasket? rings? and a little smell on anti freeze. this is on a 2002 ds that a guy asked me and i thaught it was the rings and the gasket? what do ya think, thanks

 

unless its really excessive, your fine.
Its normal to see small amounts of oil. After all, its a crank case breather.

 

well its more than usual, mine dont drip at all. but his was all over the carb and well lets just say it was a mess.

 

well before i moved mine the airbox got oil in it everyride and filled up the clear tube at the bottom of the airbox sometimes......... i just moved it up to the front of the quad under the plastic and put a uni filter on it.

 

Rings

To much crankcase pressure caused by blow by
In order to get new rings on her she's gonna get a new head gasket anyway[img]i/expressions/face-icon-small-wink.gif[/img]

 

Are you sure?

I can't remember mine ever not blowing oil out that hose, even with a new rebuild.

 

That is the usual reason for it coming out the vent hose in excess. I doubt yours is excesive. At least I don't recall it being excessive. My vent tube filter will get wet with oil also and i need to clean it once in a while. But i clean it often enough to keep it to a min.

 

When on Alky mine does it quite a bit on a new top end

 

well i got around tonight to do a leak down test and i had 70 lbs in and was holding about 60. so put some oil in the cylinder and then held about to 68lbs. so it looks like ill be putting new rings in this guys ds[img]i/expressions/face-icon-small-sad.gif[/img]. i can hear the air comming up from the crank case. i have the valve cover off.

 

It seem to be a common problem on the DS.

I think it is caused by the way the breather pipe connects to the crank case. The connection is quite low and if you take a high speed left hand corner, the oil moves to the right hand side and is splashed into the breather pipe. The same happens when you do technical riding and the go down steep hills and the oil moves into the breather hose. It is then blown out thanks to the crank case pressure created by the pistons downward stroke.

You will get this oil leak on brand new to very old DS's

The rings might be gone if you tested for leaks, but i don't believe it is the major cause for the leaking oil.