What causes Blowby?
What causes Blowby?
During combustion, high pressure on the top side of the piston pushes combustion gasses, as well as droplets of oil and fuel, past the piston rings and into the crankcase. This mixture is known as “blow-by.”
How much power can a C13 make?
The Caterpillar C13 is an inline-6 diesel internal combustion engine made by Caterpillar. The engine is 12.5 liters in displacement (763 cubic inches). The cylinder size is 5.12 x 6.18 bore/stroke. The engine can produce 380-430 horsepower at 2100 RPM.
What causes engine blowback?
Blow-back is caused by the escape of exhaust gases from inside your engine’s combustion chamber to the crankcase or valve area. When the air-fuel mixture inside the cylinders fires, it creates tremendous pressure that drives the pistons downward.
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.
What causes a Caterpillar engine to blow by?
One of the ways to check if blow-by is too great is to put your oil filler cap upside down on the filler hole. If the cap gets blown off, there is too much pressure in the crank case. Blow-by can be caused from piston rings that are worn out. A cylinder with worn out rings will have low compression and will likely cause a misfire.
How to test the fan speed on a Caterpillar C13 engine?
Connect Caterpillar Electronic Technician (ET) to the service tool connector. Turn the keyswitch to the ON position. Access the “Fan Override Test” under the “Diagnostics” menu. Start the “Fan Override Test” on Cat ET. Set the fan speed to 500 rpm. Use a 351-8635 Tachometer Kit to determine the actual speed of the fan.
What causes a caterpillar to blow by the filler cap?
This is because the combustion pressure is just too great for the piston rings to hold completely. Excessive blow-by can caused by piston rings that are sticking in the bore. One of the ways to check if blow-by is too great is to put your oil filler cap upside down on the filler hole.
