Balance Shafts And Carrier Assembly - Removal

REMOVAL

BALANCE SHAFTS/CHAIN/SPROCKETS


NOTE: For service procedures requiring only temporary relocation of carrier assembly refer to BALANCE SHAFT CARRIER procedure below.

1. Drain engine oil.
2. Remove the oil pan and pick-up tube.
3. If replacing crankshaft sprocket, remove oil pump.




Figure 1 Chain Cover, Guide and Tensioner






4. Remove chain cover, guide and tensioner. Discard pivot screw and adjuster screw. (Figure 1).
5. Remove screw retaining balance shaft drive sprocket (Figure 2). Remove chain and sprocket.
6. Using two wide pry bars, work the crankshaft sprocket back and forth until it is off the crankshaft.




Figure 2 Drive Chain and Sprockets






7. Remove gear cover retaining stud (double ended to also retain chain guide). Remove cover and balance shaft gears (Figure 3).




Figure 3 Gear Cover and Gears










Figure 4 Balance Shaft - Removal/Installation






8. Remove rear cover and balance shafts (Figure 4).
9. Remove four carrier to crankcase attaching bolts to separate carrier from engine bedplate.

BALANCE SHAFT CARRIER


The following components will remain intact during carrier removal: Gear cover, gears, balance shafts and the rear cover (Figure 5).

1. Drain engine oil.
2. Remove the oil pan and pick-up tube.
3. Remove chain cover, guide and tensioner (Figure 1).
4. Remove screw retaining balance shaft drive sprocket (Figure 2).
5. Move balance shaft inboard through drive chain sprocket. Sprocket will hang in lower chain loop.
6. Remove carrier to crankcase attaching bolts to remove carrier.





Figure 5 Balance Shafts and Carrier Assembly