Prelude L4-23L DOHC Maintenance: Balance Shaft Belt Specs (1992) - Pg 1057
16. Make sure the crankshaft is positioned with the No.1 cylinder at TDC.
17. Align the groove on the front balancer shaft pulley with the pointer on the oil pump body as shown.
18. Align the rear balancer shaft pulley by using a 6 x 100 mm bolt or equivalent as an alignment tool. Scribe a line 74 mm from the end of the bolt.
Insert the bolt into the maintenance hole to the scribed line.
19. Loosen the adjusting nut and verify that the timing balancer belt adjuster moves freely.
20. Install the timing balancer belt.
21. Turn the crankshaft pulley about one turn, then tight en the adjusting nut to the specified torque.
NOTE: The belt adjuster is spring-loaded to properly tension the belt. Do not apply any extra pressure to the pulleys or tensioner while
performing the adjustment.