What causes the flex plate to break?
What causes the flex plate to break?
The following causes for cracked flexplate failures: 1) Out of balance engine or torque converter. 2) Bad starter drive can cause teeth or ring gear to wear rapidly or break off. 3) Failure to torque the flexplate bolts to proper specifications and in proper sequence.
What causes a starter to crack?
Single-pinion gear, starter pinion or freewheel damaged. The likely reason for this type of failure is due to a sticking key switch or relay, resulting in a permanent electrical feed to the starter motor’s solenoid connection. Again, this is misdiagnosed as a starter motor failure.
What causes flywheel to keep breaking?
The flexplate takes the place of the flywheel on automatic transmission vehicles. It bolts to the end of the crankshaft and attaches to the torque converter. As misalignment increases, the flexplate flexes more. This continual flexing eventually causes the metal to fatigue and the flexplate cracks.
How does a flexplate attach to a starter?
A flexplate consists of a steel, circular disk with perforated holes and, depending on the model, teeth on the outside ring which engage the starter. A flexplate bolts directly to the crankshaft flange, and connects to the torque converter with large mounting bolts.
What can cause a crack in the flexplate?
What Can Cause, A Cracked Flexplate: Out of balance engine or torque converter. Bad starter drive, can cause teeth or ring gear to wear rapidly or break off. Teeth can also break, when engine is running and starter is engaged.
What causes a car flex plate to warp?
One of the most common causes for flexplate warpage involves the wrong torque pressure and sequence on the flexplate. Even if the flexplate was old and re-used, the manufacture’s specifications call for an exact torque pressure and tightening sequence.
What happens when a flexplate goes bad on a car?
A warped flexplate won’t engage properly with the starter motor. So, when you are starting your engine listen for, rhythmic bogging down of the engine, during starting. Consequently, the teeth of the ring gear, can become damaged over time, causing a grinding sound.
A flexplate consists of a steel, circular disk with perforated holes and, depending on the model, teeth on the outside ring which engage the starter. A flexplate bolts directly to the crankshaft flange, and connects to the torque converter with large mounting bolts.
What Can Cause, A Cracked Flexplate: Out of balance engine or torque converter. Bad starter drive, can cause teeth or ring gear to wear rapidly or break off. Teeth can also break, when engine is running and starter is engaged.
A warped flexplate won’t engage properly with the starter motor. So, when you are starting your engine listen for, rhythmic bogging down of the engine, during starting. Consequently, the teeth of the ring gear, can become damaged over time, causing a grinding sound.
What are the signs of a bad flex plate?
Here are some of the warning signs of a bad flex plate: Clunking, grinding, chirping, or rattling noises from rear of engine when engine is idling Knocking noise when engine is shifted into drive or reverse Heavy vibrations felt through the driver’s seat when driving at normal speeds
