What is the function of Conrod?
The con-rod connects the piston to the crankshaft to transfer combustion pressure to the crankpin. There are bearing portions at both ends, the piston side is called the small end, and the crankshaft side, the big end.
What does the Conrod transmit?
Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. The connecting rod is required to transmit the compressive and tensile forces from the piston, and rotate at both ends.
What causes a Conrod to break?
Excessive loads and or revs can stretch and break the con rod. This usually breaks midway at the weakest point. Tests can be carried out to determine the cause. Rods can be damaged and may fail due to overheating and distortion of the rod eye when fitting press fit pistons to rods.
Which connecting rod is best?
If you’re trying to make a lot of boost, an I-beam connecting rod is the best choice. When you need to lighten up the rotating assembly the H-beam connecting rod should be at the top of your list. These rods are a better fit for a naturally-aspirated engine where you’re turning a high level of rpm.
How many compression rings are fitted to each piston?
Automotive piston engines typically have three rings per cylinder. The top two rings— known as compression rings— are primarily for sealing the combustion chamber.
What are the forces acting on connecting rod?
The forces acting on connecting rod are: – forces due to maximum combustion pressure, force due to inertia of connecting rod and reciprocating mass. From the viewpoint of functionality, connecting rods must have the highest possible rigidity at the lowest weight.
Will a car run with a thrown rod?
No. If you’ve actually thrown a rod, that means there’s already a lot of destruction going on. A thrown rod means a portion of the rod is being thrown around inside the engine. As you run the engine, it will continue to cause more destruction.
Will an engine run with a bent rod?
If the connecting rod is slightly bent, you may be able to drive on it without too much of an issue. However, the cylinder with the bent rod will probably have lower compression than the others. If your compression numbers are within about 10% of each other across all cylinders, your rods are probably fine.