what does this sound like to everyone: my 6000 mile 355 is raining oil, and my breathers are oozing oil! I just cannot imagine where it could be coming from.... My cheap chrome valve covers seem to be bowed outside the retainers (little oil there), my manifold seems to have a few wet spots on the gasket (little oil there), my main concerns are that my breathers are oozing so much that I have little pools of oil on top of my manifold, and that i can see a steady river of oil behind the heads coming off the drivers side of the block, because of all the stuff in the way I can't see where the oil is coming from, I can just see it flowing from right below my oil plug right behind the distributor. And it is no lie, a river, the whole drivers side of my block is covered in oil, ITS EVERYWHERE!!!!!!! any ideas? I figure the head gaskets are good because there is no oil in the water and there is no smoke in the exhaust, I can barely see my oil plug but can't see anything running out... could it be a bad intake gasket? i can't beleive there is that much pressure at the gasket...?

 

there is a little 1/8 npt hole on the driverside top of the block, next to the dizzy where the oil sender goes. Is that hole used or plugged?

massive blow by?

did you overfill the oil big time?

 

I don't ever remember seeing another hole....? I can't imagine I'm getting blow-by, I've only got 6000 miles on it... And as for oil level, I actually have to add a quart every couple days to keep up with the leak... IDK......

 

ok, got out my angle mirror and I can see it bubbling out between the intake and the head..... is there anything I can do to prevent the pressure? I have two open breathers but I can see it coming out the filter over 2500 rpms, and almost spraying out at the 6000 redline....

 

Had similar problem on my new engine ( 383 ) when the rings took forever to bed in;
massive crankcase pressurization finding the weakest link anywhere in the seals
Leakdown test time maybe?

 

PCV system working?

 

Sounds like a cyl leak down test is in order, an oil leak from the front or rear intake gasket or a leaking oil plug, pressure sensor, valve cover or distributor gasket is one thing, toss in oil dripping out of breathers and it sounds like you have massive blow-by issues.

 

this game sucks.......

 

I put on an open breather because oil was making it all the way to my throttle body.....

 

Did you perform a ring seating procedure when you first got the motor running? If not, it may be too late for those rings, You can try to perform the procedure now and see if it helps. Fill the engine with 30 or 40 weight single viscosity oil. Non detergent is best but any single weight organic will work. Find a steep hill with little traffic where you can drive up and down several times at a slow speed without getting shot at. Place the trans in first or second gear and drive slowly up the hill, keeping the engine below 3,000rpm. At the top, turn around and go back down allowing the engine to hold the vehicle back. Use the brake only as needed to keep the engine below 3,000. Repeat this many times over a two week period. This should be done when the rings are brand new.

Also, did you check ring end gap? Did you clock the ring gaps according to manufacturer's instructions? Generally, the oil control ring gaps should be placed at 30 degrees from each other facing the front of the engine and within the recess between the upper and lower piston skirts. No ring gap should be in the piston skirt/thrust surface area. The lower compression ring gap should be set facing rearward in line with the piston pin. Top ring gap should face forward in line with the piston pin. This procedure is important for maximum compression and minimum blowby.