What causes blow by Cat c15?

What causes blow by Cat c15?

Yes it is possible that one of the turbos may be putting exhaust gas down the oil drain tube and causing your blow by. I have seen it before. You could also have a worn air compressor causing the blow by as well.

What causes blow by in a Cat engine?

Typically, blow-by is cylinder pressure leaking past the piston rings into the crankcase. Commonly, it starts as cylinder glazing or carbon forming in the top ring grooves, both of which allow cylinder leak down, and some oil burning. Oil burning produces further ring deposits, and more blow-by.

How do you stop engine blowby?

The best way to minimize crankcase vapor pressure – blow-by – is to seal the engine as efficiently as possible from cylinder pressure. One way is to minimize ring end gaps by custom setting the end gaps on the top two rings to fit the way the engine will be run.

Is a little blow-by normal?

“Blow-by” is a fairly common term across all types of engines—diesel, gas, etc. It’s important to note that some blow by is normal, as rings aren’t 100 percent infallible—not even in a new engine.

Is blow by bad for your engine?

Over time, blow-by can reduce engine efficiency as it coats parts of the intake in oil and fuel. This allows more blow-by into the crankcase, and because the engine is still cool and then shut down, that blow-by condenses in large amounts inside the crankcase and PCV system.

Why is my c 15 ACERT oil so low?

New filter would bring the pressure back up for a while until the new one plugged. Think it ended up being liner seals.

Why is my C15 oil filter plugged with soot?

I have seen C15s plug the oil filter with soot. This is usually caused by combustion gasses getting by the piston rings or the valve guides. Another cause can be an overfueling situation, again putting excess amounts of soot in the oil.

What causes black smoke in a C 15 ACERT engine?

This is usually caused by combustion gasses getting by the piston rings or the valve guides. Another cause can be an overfueling situation, again putting excess amounts of soot in the oil. A blowby test would determine if rings or guides were the issue. If the engine is pre-2007 EPA emissions you would see black smoke if an injector (s) were bad.

What causes the oil pressure to go down?

(KW tech for 10 years) Send in an oil sample, if changing the filter is what brings the oil pressure back up then the filter is plugging and the filter bypass is opening lowering the oil pressure. Had a E model doing the same thing was getting a small amount of coolant in the oil and plugging the filter dropping oil pressure.