if there is an inspection plate, it will be on the very bottom of the bell housing most auto transmissions do not have inspection plate some vehicles the only way to inspect flywheel is to remove starter and look thru opening there other than that, the transmission needs to be removed to check
For your 1992 Nissan/Datsun 300ZX: Flywheel Torque 61-69 Foot pounds (Final torque)
25 ft lbs on pressure plate and 50 Ft lbs on the flywheel bolts. use locktite
Pull the inspection plate off, reach in with an end wrench and tighten them up. Use a screwdriver on the flywheel teeth to turn it so you can get to all of them. If the holes have become elongated, you will need to replace the flex plate.(Flywheel)
Flywheel
The "flex plate" will interchange as long as the donor vehicle is the same year and has the same size engine. Both vehicles use Nissan powertrain.
It sandwiches the clutch friction plate to the flywheel. The flywheel is connected to the engine, the friction plate is connected to the gearbox. Strong springs inside the cover plate hold the friction plate firmly to the flywheel. When the clutch lever is operated, springs in the cover plate are compressed, thus releasing the pressure on the friction plate, disengaging the gearbox from the engine.
Pressure plate to flywheel bolts - 24 ft/lbs
Takes about 19 hours all up to replace clutch plate pressure plate and thrust raceproviding you have access to a hoist.
Haynes Auto Repair Manual say's Clutch pressure plate-to-flywheel Torque should be 11 to 15 Ft-LBS Hope that helps....
80Lbs for flywheel, 10 to 15lbs for pressure plate
Manual Transmittion - Flywheel to Crank - 105 Foot Pounds Pressure Plate to Flywheel - 33 Foot Pounds Automatic Transmittion - Flex Plate to Crank - 65 Foot Pounds