Sump oil being drawn into air intake how can i fix it

You have replaced the gasket

Smoke from where exactly? Under the hood? From the exhaust? You need to be more specific.

Hello Louis,

As you have no doubt learned by now, the only way fuel can get into the oil is via the injectors (carb?) and for that to happen a stuck injector had to be pouring gas into the intake, where it bypassed the rings and joined oil in the sump.

That's a lot of gas! Car must have been running horribly. If the gas was in the sump long enough to thoroughly dilute the oil, you may also have bearing damage from inadequate lubrication.

First, fix the source of the gas, then carefully check for oil pressure.

No easy fix, in that case??.

all the best.

check the oil level for over filling. Check correct viscosity of the sump oil in use.Have a compression test done to check for wear as this may be from excessive blowby. Check the air cleaner is clean as the turbo may be sucking air from the sump area as the air inlet may be partially blocked (air filter)

Hi
The engine produce little oil steam when is at normal temperature, this is normal.
This steam goes to the air cleaner for recycling.
Now, the reasons to see oil dripping from the air cleaner are:
Engine oil overfilled, or engine breather valve( if fitted) faulty, or the piston rings causing the pressure to scape into the oil sump ( this means engine damage).
get a technician to chem it.
good luck.

over filling a sump will cause burning oil , some engine performance problems at higher rpm, increase oil temperature and frothing of the oil
that will lead to PCV valve passing oil instead of vapour and that may effect he air intake sensors
The fix is to remove the excess oil and run the engine for a period of time ( 100 mile drive ) to remove the oil from the intake and allow the cat converter to burn off
the residue
The service person will say that the level is correct because they use a preset counter controller when filling sumps and it was probably not set for the correct amount for your vehicle
At this point do not panic and give the engine a chance to clear out the overfill results
After the run you could have a fault code reading to see if any sensors have been affected and then plan on a course of action

have you turned your engine over? if so your engine flodds with oil and pressure rises too high. it will spill into the exhaust system and air intake messy business. if you havent turned over the engine just drain excess oil out from sump under the evgine

Leaking valve cover gasket ? upper intake manifold leaking

According to Chilton's manual on page 159 under "Diesel Engine Emissions Controls" A Crankcase Depression Regulator Valve (CDRV) is used to regulate (meter) the flow of crankcase gases back into the engine to be burned. The CDRV is designed to limit vacuum in the crankcase as the gases are drawn from the valve covers through the CDRV and into the intake manifold.

Fresh air enters the engine through the combination filter, check valve, and oil fill cap. The fresh air mixes with blow-by gases and enters both valve covers. The gases pass through a filter installed on the valve covers and are drawn into the connecting tubing.
Intake manifold vacuum acts against a spring loaded diaphragm to control the flow of crankcase gases. Higher intake vacuum levels pull the diaphragm closer to the top of the the outlet tube. This reduces the amount of gases being drawn from the crankcase and decreases the vacuum level in the crankcase. As the intake vacuum decreases, the spring pushes the diaphragm away from the top of the outlet tube allowing more gases to flow to the intake manifold. NOTE: Do not allow any solvent to come in contact with the diaphragm of the CDRV because the diaphragm will fail.
It sounds like your CDR valve has been compromised. Time for a new one or at least a functioning used one.

Credit to - 82Chev @ http://www.dieselplace.com/forum/63-gm-diesel-engines/20-6-2l-diesel-engine/444625-cdr-valve-question.html

There is a oil drain return from the turbo charger to the sump. If the sump oil level covers the outlet into the sump, oil will build excess pressure tin the turbo causing the sealing rings to leak oil in to the intake manifold. This would cause smokey exhaust and loss of oil. Try this. Drain the sump completely, refill with the exact quantity of oil to Mazda spec. Dip the oil and if the new oil level is lower than the full mark on the dipstick, you have found the cause of the problem. Mark this new level with a scriber or file and fill only to this new level. Hope this is the solution.