I'm going thru a qt of oil every 600 miles. My intake gaskets are leaking and replacing them as we speak. It is my understanding that the leaking can cause a vacuum in the valley and the intake valves can suck up the oil and burn it. Nothing ever comes out the exhaust to indicate burning oil. Not even on startup.
Since I have the intake off I took a looksy at the valves. Notice the oily carbon buildup and discoloration of the stems. I'm linking to 4 valves, all 8 are the same.
Is this being caused by the leaky intake gaskets, valve seals, or possibly a combination of both? Or, is there another issue?
I haven't pulled the heads.
If you click on the pick once to enlarge them, then click again, it really makes them big. It was tough getting decent pix....
Thanks,
Rodnit
Since I have the intake off I took a looksy at the valves. Notice the oily carbon buildup and discoloration of the stems. I'm linking to 4 valves, all 8 are the same.
Is this being caused by the leaky intake gaskets, valve seals, or possibly a combination of both? Or, is there another issue?
I haven't pulled the heads.
If you click on the pick once to enlarge them, then click again, it really makes them big. It was tough getting decent pix....
Thanks,
Rodnit