I know its not a flywheel but I just replaced the rear main seal on my automatic 1990 240 DL and I did not index the flexplate, everything runs just fine after the work was done.
Hope it helps.
flywheels are not adjustable
four
Begin by removing the positive cable from your 1990 Volvo 240 battery. Remove the cables from the front of the starter motor. Remove the starter motor retaining bolts. Reverse the process to install your new starter motor.
No
75 Ft LBS.
No
Flywheel clutch face surface facing out and line the bolt holes up. That's the only way it can go.
In the 1989 Volvo 740 GL with a Bosch system it is located just above the steering column on the dash.
Behind glove box
2431
Flywheel must be torqued to 105 ft/lbs. Clutch and pressure plate torqued to 22 ft/lbs.
YES