A thrown rod is usually the result of metal fatigue, insufficient lubrication or over-revving of an engine. When gasoline combusts in a cylinder, it drives the piston head downward, pushing the connecting rod and turning the crankshaft. If the metal is weakened, the connecting rod between the head and crankshaft may break. Poor lubrication can cause friction, and over-revving may produce more force than the connecting rod can handle.Continue Reading
Throwing a rod is usually a catastrophic engine failure. In many cases, it occurs while the piston is on the downstroke and can force the broken end of the rod into vital engine components. If it occurs while the piston is moving upward, it can force the piston head into the top of the cylinder with enough force to fuse the two pieces together. In either case, the engine must usually be replaced.
Keeping an engine properly lubricated is one way to help prevent this kind of damage. Low oil pressure can result in not enough oil inside the piston to keep the bearings of the piston head lubricated. Coupled with the metal fatigue present in a high-mileage engine, a lack of oil can be the final trigger that causes an engine to suffer a thrown rod.Learn more about Engine
Thrown rods or piston rod breaks happen due to oil problems, over-revving the engine, faulty piston bearings or normal wear and tear. A thrown rod leads to an engine stopped cold in its tracks.Full Answer >
To replace a car engine piston, start by removing the connecting rod cap and push the piston upwards and out of the cylinder block using the connecting rod. To install a piston, install the rod bearings, position the rings gaps, set the ring compressor, align the piston, and hammer it into position.Full Answer >
Pinging in an engine is the result of the air and fuel mixture within an engine cylinder igniting incorrectly, explains Cars Direct. This may be caused by using gasoline with an insufficient octane rating, carbon buildup within the cylinder itself or improperly functioning spark plugs.Full Answer >
A car powered by an internal combustion engine moves by transmitting the engine's rotational movement to the wheels via the transmission, driveshaft and differential. Front-wheel drive cars do not require a driveshaft, but rear-wheel drive and four-wheel drive cars use driveshafts to transmit power to the rear wheels.Full Answer >