Does Blowby burn oil?
Does Blowby burn oil?
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.
Does Blowby reduce power?
Over time, blow-by can reduce engine efficiency as it coats parts of the intake in oil and fuel. In forced-induction and intercooled engines, blow-by often coats the inside of the intercooler, severely affecting its ability to transfer heat and cool the intake charge. These issues become even more apparent with age.
What can I do about a blow by engine?
These engines had developed a fair bit of blow-by and were using more oil. They found that using the Flushing Oil Concentrate reduced blow-by and oil use in the older engines. They’ve even had engines with 2 million kms respond well to the Flushing Oil Concentrate.
Can a cat engine still run after a blowby?
Performance, oil control and blowby control quickly returned to normal. At 900,000 km, the engine was still running sweater than ever, and no oil consumption. His Cat engines are also running better, and the oil in them stays very clean right to the change interval.
How to avoid common causes of blow by and oil consumption?
Here are some common causes of blow-by and excessive oil consumption and how you can avoid them on your next engine build. The combustion process is never perfect. Even the best street engine never seals all that combustion pressure. A certain amount of cylinder pressure will always find its way into the oil pan.
What kind of oil pressure does a big block Chevy have?
This may sound simple, but we’ve seen this happen many times. In a situation that recently occurred at Westech Performance, dyno operator Steve Brule’ witnessed a significant dip in oil pressure above 5,000 rpm on a 600 hp 468ci big-block Chevy.
These engines had developed a fair bit of blow-by and were using more oil. They found that using the Flushing Oil Concentrate reduced blow-by and oil use in the older engines. They’ve even had engines with 2 million kms respond well to the Flushing Oil Concentrate.
What to do if oil comes out of blowby tube?
When you block the blowby at high pressure the dipstick is the first place that blows out, your thumb will usually feel the higher than normal pressure instantly though. A manometer is cinch to make and will cost you 10¢. All you need is loop of clear tubing filled partially with water taped to a 1×4” and  a tape measure.
Performance, oil control and blowby control quickly returned to normal. At 900,000 km, the engine was still running sweater than ever, and no oil consumption. His Cat engines are also running better, and the oil in them stays very clean right to the change interval.
What should the pressure be on a Cummins blowby?
Not sure on a Cummins but other diesel engine makers say the pressure coming out the blowby shouldn’t exceed 5 psi. Anymore indicates a valve or ring problem. If you don’t have a gauge setup to measure it just put your thumb over the end of the blowby, you should be able to hold it there without blowing off.
