The General Motors Drum 2 is a 6-inch x 14 inch circular carbon fiber repackagable muffler with a 2.50-inch or 3-inch free flowing spiral straight core wrapped in stainless steel mesh. T304 stainless steel end plate and hardware. 650 automatic carbon fiber wrapping. When the copper wire of the low-voltage wire of the distributor breaks, the cross-sectional area of the wire decreases, thereby increasing the resistance of the primary circuit and reducing the current in the circuit, resulting in insufficient high voltage generated by the ignition coil. When the engine temperature is low, although it is difficult to start, the engine can run normally after starting. After the engine temperature increases, the ignition coil temperature also increases, and the resistor increases with the temperature rise. Therefore, the high-voltage electricity generated by the ignition coil will be even more insufficient, and the high-voltage spark will be weaker, even leading to misfires. Due to intermittent ignition, the unburned combustible mixture in the cylinder is discharged into the muffler. When the muffler expands and sparks in the exhaust gas explode, it manifests as muffler emission.
