740 L4-2320cc 2.3L DOHC B234F (Can) (1992)
Balance Shaft: Description and Operation
Balance Shafts
Balance shafts
The vibrations caused by upward and downward movement of the pistons are limited by two counter-rotating balance shafts running at twice the engine
speed.
Each of the two externally-mounted balance shaft housings is split. Made of die-cast aluminum, the housings are located at different heights on the block.
The block casting is provided with bosses which are milled out to provide a press fit for the housings. Securely located, the housings are then bolted in
position. The right-hand shaft housing also supports the shaft belt jockey pulley.