Installation

NOTE: Balance shaft and carrier assembly installation is the reverse of the removal procedure. During installation crankshaft to balance shaft timing must be established. Refer to Timing procedure out-lined below.





1. With balance shafts installed in carrier position carrier on crankcase and install four attaching bolts and tighten to 54 Nm (40 ft. lbs.).





2. Turn balance shafts until both shaft key ways are up Parallel to vertical centerline of engine. Install short hub drive gear on sprocket driven shaft and long hub gear on gear driven shaft. After installation gear and balance shaft keyways must be up with gear timing marks meshed as shown.
3. Install gear cover and tighten double ended stud/washer fastener to 12 Nm (105 inch lbs).





4. Install crankshaft sprocket using Special Tool 6052, or equivalent.





5. Turn crankshaft until number one cylinder if at Top Dead Center (TDC). The timing marks on the chain sprocket should line up with the parting line on the left side of number one main bearing cap.
6. Place chain over crankshaft sprocket so that the nickel plated link of the chain is over the number 1 cylinder timing mark on the crankshaft sprocket.
7. Place balance shaft sprocket into the timing chain so that the timing mark on the sprocket (yellow dot) mates (with the lower) nickel plated link on the chain.
8. With balance shaft keyways pointing up (12 o'clock) slide the balance shaft sprocket onto the nose of the balance shaft. The balance shaft may have to be pushed in slightly to allow for clearance.

NOTE: The timing mark on the sprocket, the (lower) nickel plated link, and the arrow on the side of the gear cover should line up when the balance shafts are timed correctly.

9. If the sprockets are timed correctly install the balance shaft bolts and tighten to 28 Nm (250 inch lbs.). A wood block placed between crankcase an crankshaft counterbalance will prevent crankshaft and gear rotation.