Mercury YL8Z-6375-AA Flywheel Assembly

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In order to do this, some of the related components such as oil seals will have to be (checked and) replaced or (checked and) if necessary. In manual transaxle vehicles demount the clutch and check and renewal of its components as required. It would be prudent to scratch lines on the flywheel/drive plate and the crankshaft so that when assembling the car the next time it would be easier to align because the bolt holes are slightly offset. To immobilise the flywheel/drive plate, have assistance for turning the screw on the lower end with a screwdriver, or use a piece of angle-iron pressed against the transaxle mounting bolt. Unwind also and slide out each bolt because they are often replaced with new ones whenever using them again since they work under high stress. It is important not to drop the flywheel/drive plate while taking it off, so needs to be done very carefully. For inspection, examine driveplates for any signs of crack as well as elongation of bolt holes and examine ring gear teeth for any signs of damages. Remove grease or oil from the flywheel and examine for cracks and warpage, and check the mating surfaces for leaks it is recommended that the oil seal be replaced. As it is necessary to clean the inboard face of the flywheel and the tip of the sensor, you should do it when the flywheel is off. When installing, make sure the engine/transaxle adapter plate is installed, rotate the flywheel/drive plate and align with the marks made when removing, use new bolts, torque by hand. Secure the flywheel/drive plate as described above for removal, then install new bolts and tighten, in a diagonal pattern, to the specified torque. The balance of the installation works in the sequence if the removal process.

Install the new bolts, tightening them by hand. Secure the flywheel into position with the new bolts.