All my spark plugs are soaked with oil. believe i have a bad valve seal or blown head gasket cause #1 cylinder has 20lbs compression,#5 has 120lbs. So i was pulling my intake manifold when i found oil coming out of the intake and straight onto the intake valves. I could hear it sloshing around inside and i poored about half a quart of oil out of the intake manifold. My vehicle has 162,000 miles. I have no idea how this much oil could get into the intake manifold and then into the intake valves. Pls help
Hi there. That type of oil volume inside the intake manifold is typically a sure fire indication of a blown head gasket. It’s also quite possible that this has occurred for an extended period of time. There are a few things that you can do to verify that this is the head gasket. First, check the oil itself. If it is milky or foamy then it means the head gasket is damaged and coolant is leaking into the oil galleys. If the head gasket is not damaged, excessive oil inside the spark plug well could also be a damaged O-ring but can also be the result of a failing piston or worn valve guides. Either way, the only way to correctly inspect and diagnose this would be to tear down the motor, so you might want to consider whether you are wanting to complete repairs or purchase a newer vehicle.
How to Identify and Fix Common car Problems ?
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This ventilation system manages the effective removal of combustion gases between piston and liner while allowing a very small amount of oil to escape past the pistons. Such a small blow-by is completely normal.
However, excessive crankcase pressure can cause oil to be pushed out of the breather and into the throttle body. This can be caused by worn rings or worn valves, oil sloshing (hard cornering), or too much oil in the crankcase.
What does cause this is a worn turbo (bearings and oil seals) or the PCV system. There is a shaft with a couple bearings in the turbo which are lubricated by engine oil. When the bearings wear or the oil seals wear, oil can make its way into the pressurized side of the turbo and be pushed into the intercooler.
One is the hard way, and that is to remove the intake and clean it with a good degreaser. The other way is to use a good carb and fuel injection cleaner. Remove the intake air tube that is attached to the intake/air box. Open the throttle plate and using a light, spray everywhere you can and see oil.
Specifically, if the PCV valve malfunctions, or is stuck open, it allows some of the oil that is used to lubricate the pistons and cylinders to escape. This wayward oil can then find its way to the surface of the engine`s spark plugs, resulting in a condition known as “oil fouling.”
The most common reasons for oil in the intake are a bad PVC valve or clogging in the oil passage. The best way to prevent oil in the intake manifold is to regularly change your engine`s oil and use a quality air filter.
Leaky O-rings (spark plug tube seals) are probably the number one cause of oil on spark plugs. Spark plug tube seals keep engine oil, coolant, and everything else on one side of your spark plugs, so they remain dry. If these rings fail, engine oil can leak into your spark plug well and onto your spark plugs.
When the throttle body gets dirty, it has a direct effect on how smoothly the engine operates. Signs indicating a problem include rough idling, jumpy or sluggish acceleration, poor fuel economy, and stalling. With the use of a throttle body cleaning product, the dirt and debris buildup are easily removed.
The pump sends the oil up to the main bearings of the crankshaft (in the lower middle), which converts linear energy into rotational energy. From there, the oil moves through oil holes drilled in the crankshaft, to the rod bearings, and then through an oil line to the cylinder head (in the upper middle).
Common signs include the engine constantly overheating, coolant leaking, engine misfires, and a decrease in power, acceleration, and fuel economy.
While the engine is running at the correct operating temperature, Increasing the engine RPMs helps the motor to burn-off carbon buildup within. The use of specialized fuel additives and fuel treatments will also aid the engine in removing these deposits.
An oil extractor is a device used to drain engine oil and other fluids from your vehicle. This device works by sucking the oil from the crankcase through a thin tube inserted into the dipstick opening. The pump creates a vacuum that pulls the warm oil into a separate container, which can then be recycled properly.
Common signs of a faulty PCV valve include excessive oil consumption, oil leaking, a blocked breather filter, and reduction in overall performance.
PCV Valve Replacement
If the valve doesn`t open and close on schedule, or if any part of the system clogs, the result can be a rough idle, sluggish acceleration or increased oil consumption. Rough idling is commonly caused by bad spark plugs, so problems with the PCV valve are often misdiagnosed.
Excess crankcase pressure may also occur if the PCV system vacuum supply becomes restricted. Excessive crankcase under-pressure, (vacuum) can occur if the fresh air inlet becomes restricted or the wrong PCV valve is used.
What happens to an overfilled engine? If you overfill your car engine with oil, your car may experience these problems: Pressure on crankshaft; proper pressure on crankshaft will prevent leaking. But excess oil in the engine will cause excessive pressure in the crankshaft component, which will cause leak.
Blue smoke from the exhaust: Bluish smoke can indicate your car is burning oil during the combustion cycle. Burning oil smell: A thick burning oil smell could mean oil is seeping onto hot engine parts. Frequent low oil light warnings: Regular low oil warnings can indicate excessive oil consumption or a car burning oil.
The intake manifold gaskets can develop external engine oil or coolant leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue.
The intake manifold gaskets can develop external engine oil or coolant leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue.
If there`s a noticeable thick burning oil smell coming from your car, it may mean that your oil is leaking. Oil can drip out onto the hot engine parts, creating this acrid smell. If your oil is leaking, it could also mean that your vehicle is overheating.
The oil acts as a sticky trap for incoming air contaminants, providing an important layer of protection to keep the air free of debris. These filters typically come pre-oiled with a specific amount so they can drop right in without the user having to do anything.