You have to pull the engine or transmission. The Flex plate is at the back of the engine on an automatic transmission. 6-8 bolts hold the plate to the engine, and four bolts hold the plate to the tranny.
To destroy a flex plate in an automatic Subaru Legacy, excessive stress can be applied through a few methods, such as revving the engine while in gear without the brakes engaged or performing hard launches. Additionally, improper installation or using a mismatched torque converter can lead to misalignment, causing the flex plate to crack or break under normal operation. Overheating the engine or transmission due to inadequate cooling can also weaken the flex plate. However, deliberately damaging vehicle components is not advisable and can lead to costly repairs.
remove engine or transmission replace flex plate (flywheel).
The flex plate is bolted to the back of the crankshaft. It connects the motor to the torque converter in the transmission. To replace you remove the transmission and replace it.
It is important to know the cost of the repairs in a vehicle. For a 1998 Ford Escort it will cost between $20 and $50 to replace the flex plate.
Remove the inspection plate/dust cover from the bell housing. Disconnect the torque converter from the flex plate. Remove the drive shaft from the transmission. Separate the engine and transmission and support the transmission while you remove the flex plate. Replace the flex plate and put it all back together.
The transmission has to be dropped first. then the torque convert/clutch needs to be removed to gain access to the flex plate, which can then be replaced.
To replace the flex plate on a 1986 Ford F-150, first ensure the vehicle is safely lifted and supported. Disconnect the battery, then remove the transmission by unbolting it from the engine and separating it from the driveshaft. Once the transmission is out, unbolt the old flex plate from the torque converter and the crankshaft, then install the new flex plate by reversing the process, ensuring all bolts are torqued to the manufacturer's specifications. Finally, reassemble the transmission and reconnect the battery.
If it really IS the flex plate, that's a lot cheaper than other problems that could cause a bad knock. The flex plate is a steel plate that bolts to the rear of the engine and has gear teeth around it. The starter engages with the teeth to start the engine. The torque converter also bolts to the flex plate. All power produced by the engine that is used to move the vehicle goes through the flex plate. Flex plates get old and sometimes crack. When that happens you want to get the old flex plate out of there as soon as you can before it breaks completely and destroys the torque converter. A flex plate is relatively cheap, compared to a complete engine rebuild or replacing the torque converter. To replace the flex plate, simply pull the engine (or transmission, whichever is easiest), unbolt the flex plate from the crankshaft, bolt up a replacement and put the transmission (or engine) back. Of course, there is more involved than that, but it's not as bad as some repairs.
A automatic has a flex plate and a tork converter.. A manual trans has flex plate and fly wheel...
The easiest way is to remove the transmission for that job
Yes, a 168-tooth flex plate can work with a 700R4 transmission, provided that the engine it is mated to is compatible with that flex plate. The 700R4 typically requires a specific flex plate to match the engine's starter and flywheel specifications. Always ensure that the flex plate is designed for the engine and transmission combination you are using to ensure proper fit and function.
To my knowledge the only small block flex plate that doesn't interchange is the small block 400.