86 Toyota Pickup 22R OIL in CARB/Air Cleaner

MARKSTUTS

MEMBER
1986 TOYOTA PICKUP

I just bought this pickup its a 86 pickup with the 22r motor with 228,000 miles. It starts and runs fine after it has sat for awhile, if you do any highway driving further than five miles and then it won't start. I took the air cleaner off and there was oil standing in the housing, and the filter was drenched in oil. I replaced the PCV valve, but there is another hole coming from the valve cover that has a hose going from it to the air cleaner. This is where its coming from. I took of the hose and started the truck, and there was alot of pressure coming from the valve cover. It was like steam with oil mixed in. ANy help would be appreciated.

2 Replies

DSPLC

MECHANIC
220 POSTS

I used to have an old car with the same problem. Mechanic told me that I have worn out piston rings. That is why some of the combustion pressure in the piston cylinder is going under the crankcase (should be all pressure going out in the exhaust pipe) causing the oil/steam pressure to go out of the valve cover. My only suggestions are:
1. When you change oil, use a thicker gauge. I used number 40. Do not use the thin oil 5W30 nor 10W30.
2. Add oil additive that thickens the oil or that helps lessens oil burning in the piston cylinder or the one that coats piston cylinder.
3. I did not connect back the pressure hose to the air cleaner. I bought a long hose (thickness same as the pressure hose), remove the old pressure hose from the valve cover and insert this new long hose and guide the other end all the way to the bottom beside(outside) the engine. 2 to 3 inches below the bottom of the engine. So that the oil will just leak to the road. Make sure to strap the hose so that it would not touch any moving parts or exhaust pipe. It works for me until I can afford to buy a better car.
4. Check your oil everyday before you use it. I believe your engine eats/burns oil.
5. Use spark plugs that are good in oil burning. I was recommended with Champion brand spark plugs.

If your engine is misfiring (rough engine). Check one of your spark plugs that is soak with oil. Replace only that one, not all. So, carry spare spark plugs.