How to Install a Flywheel and Replace a Missing or Faulty Flywheel Bolt
The flywheel helps the engine crankshaft to make turns smoothly, even when there's no power applied. Flywheel bolt is responsible for making sure that the flywheel is in good working shape and retains its proper place. When one of your flywheel bolts is missing, it will cause other bolts to loosen up. It will also cause engine vibration that might result in premature wear of your bearing. This will also affect your flywheel's function and performance. Below is the guide on how to fix this problem.
Things you'll need:
- 41mm (1&5/8") six point socket
- Breaker bar for socket
- Wood chisel
- 19 X 22mm open-end wrench
- Tommy bar
- Room Temperature Vulcanization (RTV) sealant
- Silicone grease
- New flywheel bolt
- New flywheel
- 2 closed-end spanner wrenches
- Floor jack
- Jack stands
Step 1: You need to park your vehicle on a level floor. Secure all your belongings, and prepare all the tools and materials needed for the installation.
Step 2: Use your jack and jack stands to lift your vehicle from the ground. You need to jack up both the front and back of your vehicle, so make sure that your jack stands are heavy-duty. Make sure to lift your vehicle at least 4 inches from the ground.
Step 3: Open your hood.
Step 4: Disconnect the battery by removing the positive cable from the positive post of your vehicle. Secure the loose cable end away from the battery.
Step 5: You need to carefully separate the driveshaft from the rear of the automatic transmission. Take note that for rear-wheel drive vehicles, you need to disengage the U joint and remove the two U bolts. Turn the axle, and wait until the U joint releases from the yoke, then pull the driveshaft from the tail housing of your transmission.
Step 6: Untigten and take away the torque converter bolts that safeguard the transmission to the flywheel.
Step 7: Use your two closed-end spanner wrenches and, remove the three short bolts and the three long bolts. You need to loosen the bolts before removing them. This will eliminate pressure on the remaining bolts. Check all the fasteners if they need any adjustments when replacing the flywheel bolt.
Step 8: Place the floor jack under your vehicle again, and raise the lifting arms up to the bottom of your transmission fluid pan.
Step 9: Put a piece of plywood in between the lifting arm and the pan. This will secure the pan when lifting and lowering.
Step 10: Carefully loosen the transmission mount bolts and the cross-member fasteners. Be aware of the weight distribution on your floor jacks.
Step 11: Use small spanner wrenches and pliers to disengage the speed sensor, transmission temperature gauge, and the shifter linkage. Pull the shifter linkage cotter pin carefully.
Step 12: Make sure that the area where the inner lip of the seal is free from any burrs. Do this prior to the installation of the new flywheel.
Step13: We recommend you to put silicone grease on the flywheel. This will keep the seal lip coated with grease and will reduce premature wear.
Step14: To prevent unnecessary oil to seep between the flywheel and the crank, you may coat the flywheel washer with room temperature vulcanization (RTV) sealant.
Step15: Make sure to use a new flywheel bolt for better results.
Step16: Place the new flywheel carefully, and make sure to align the key ways up
Step17: Carefully tap on the flywheel for about ¾ the way into the flywheel, then gently slip it into the crank end.
Step18:Insert the flywheel washers bolt's tooth into the hole.
Step19: Tighten the flywheel bolt using your hands.
Step 20: Secure the flywheel from moving using your 19 X 22mm open-end wrench.
Step 21: Use your 41mm (1&5/8") six point socket and breaker bar for sockets to crouch the flywheel bolt down.
Step22: Bend the washers up using the wood chisel.
Step23: Use your tommy bar and hammer to finish the installation.
The entire installation process will take you about an hour or two to finish depending on your skill level. Make sure to have all the special tools needed because you cannot finish the installation of your new flywheel without them.