Bobcat 463 blowing white smoke and oil from valve cover breather tube

[Shaun463]

Looking for some guidance on trouble shooting a problem of a recently purchased bobcat. I have a 2003 bobcat 463 with 2100 hrs on it. It has ran fine for two months I have had it but I recently started seeing white smoke come from the engine compartment. I noticed this same smoke a month ago but it stopped (lasted 2-3 minutes) and hasn't returned until now. The bobcat doesn't have any issues starting and doesn't seem to have any sort of power loss. I changed all fluids and filters the day I bought it since the previous owner seemed not to maintain the machine. I recently started the machine and white smoke started pouring out of the valve cover breather tube. As I rushed to put it back on the trailer oil started draining out of the same tube.

Any ideas on how to start trouble shooting the problem would be greatly appreciated.

 

[Tazza]

Smoke and oil out the breather tube is blow-by, something has likely happened to damage a cylinder or piston.

Has the machine over heated at all?

 

[Shaun463]

Smoke and oil out the breather tube is blow-by, something has likely happened to damage a cylinder or piston.

Has the machine over heated at all?

Tazza,

The machine has not shown any signs of overheating since I owned it. I keep a close eye on the coolant temp gauge when operating it which I assume it works due the gauge starting out low and settles in at the high range of green when operating.

 

[Tazza]

The issue stands, if there is crank case pressure, you have an issue with your cylinders/pistons/rings