How do you get balance shaft drive sprockets off?

?
oil balance shaft? it is called the BSM


yes , RTM read the service manual,

https://eautorepair.net/Marketing/Default.asp

the 2 cams are set using a tool called locking wedge.
4 marks aligned 2 cam sprockets per the manual./

BSM WORDS ,INSTALL

There are two different Balance Shaft Module (BSM) to engine block bolts used. 180 mm bolts with a lock-patch on the threads or 185 mm bolts without lock-patch. Do not reuse the 180 mm bolts. Always discard 180 mm bolts after removing. Failure to replace these bolts can result in engine damage. The 185 mm bolts are reusable. Install the same length bolts that were removed and use either four new 180 mm bolts or four 185 mm bolts.
If chain was removed, align marks on crankshaft sprocket (2) and chain (1).
Align marks on crankshaft sprocket (2) and chain (1)

1. Align marks on oil pump sprocket (5) and chain (4).
2. Install chain on sprocket.
3. Pivot BSM assembly upwards and position on ladder frame.
4. Start BSM mounting bolts by hand.
5. Use a three step procedure when tightening BSM mounting bolts.
6. Tighten new 180 mm BSM mounting bolts as follows:
   
   1. Tighten to 11 ft. lbs. (15 Nm) in the sequence shown.
   2. Tighten to 24 ft. lbs. (33 Nm) in the sequence shown.
   3. Rotate bolts an additional 90° in the sequence shown.
7. Tighten 185 mm BSM mounting bolts as follows:
   
   1. Tighten to 11 ft. lbs. (15 Nm) in the sequence shown.
   2. Tighten to 22 ft. lbs. (29 Nm) in the sequence shown.
   3. Rotate bolts an additional 90° in the sequence shown.Remove tensioner pin 9703 (4).
      Remove tensioner pin 9703 (4)
      
      1. nstall oil pan.
      2. Fill with oil.
      3. Start engine and check for leaks.
      READ THE MANUAL PAY $20 LIKE ME.

Before I replaced the balance shaft assembly chain on my 2004, the marks on the chain weren't lined up with the marks on the sprocket. When I installed the new chain, I just lined up the marks. (Had to rotate balance shaft independent of crankshaft to do this) Wasn't any noticeable vibration before or after, not really sure why the marks weren't lined up before.
Hope this helps.

place no 1 piston at TDC compression stroke. There are procedures for the timing of the balance shafts but if it is only the timing chain I will go to that
Align uniquely coloured chain link with intake camshaft sprocket timing mark-- INT--. ( this will be pointing at the 2 o'clock position)
install timing chain and sprocket as an assembly
align first matching coloured chain link crankshaft timing mark (5 o'clock position)
align the second matching coloured chain link with exhaust cam shaft timing mark--EXH ( at the 11 o'clock position
There is a special procedure to reset the balance tensioner and it is different to the timing chain procedure.

To reset cam shaft timing chain tensioner push piston fully and turn clockwise until locked
Once the tensioner has been compressed ensure the distance from end to end is 2.83 inches . If not repeat the resetting process
vehicles 30.000 miles the tensioner is released when the engine is first started . In vehicles over 30.000 miles manually release tensioner by tapping the plunger
Note cam shaft and crank shaft sprockets bolts MUST only be used once. If you want details on the balancer chain procedure then make a comment in the box
use tension wrench and a degree gauge
cam bolts are tensioned to 63 ft lbs + 30 degrees
crank shaft pulley is tensioned to 74 ft lbs + 75 degrees

Remove camshaft covrs
Remove front cover
Remove or fully retract all three timing chain tensioners
Remove oil pump
Primary and secondary chain guides should remain in place. Rotate crankshaft until sprocket drive key is at about 1 o'clock position.
Set crankshaft and intermediate shaft sprockets into primary drive chain with their timing marks asjacent to each other.
Install crankshaft and intermediate sprockets over their respective shafts. Rotating crankshaft as necessary to engage crankshaft key in sprocket without changing the timing mark relationship.
Install Flywheel Holder Tool (J-39411) to lock crankshaft in position. Install intermediate shaft sprocket retaining bolt and torque to specifications.
Route secondary chain for left cylinder head over inner row of intermediate shaft teeth.
Route secondary drive chain over chain guide, and install exhaust cam sprocket to chain so camshaft drive pin engages the sprocket notch marked "LE" (Left Exhaust).
There dhould be no slack in the lower section of the chain, and the camshaft drive pin must be perpendicular (90 degrees) to the cylinder head surface.
Install the intake camshaft sprocket into the chain so the sprocket notch marked "LI" (Left Intake) engages camshaft drive pin, while drive pin remains perpendicular to the head face. Minor adjustments can be made to camshaft position to get pin to engage by using a wrench on the hex cast into the camshaft.
Install sprocket retainer bolts and torque to specification.
Repet steps as above to install the right secondary chain to the right camshafts. The right camshaft sprockets are marked "RE" and "RI". In addition, the RE sprocket must contain the camshaft position sensor pickup.

Please let me know if you have questions, and thanks for using Fixya.

To install:

1. Rotate the crankshaft so the No. 1 piston is at TDC and the mark on the crankshaft is at the 4 o-clock position.
2. Rotate the balance shaft so the timing mark is at the 5 o-clock position.
   NOTE Be sure the painted links are facing the front of the engine.
3. Install the timing chain on the sprockets.
4. Center the mark on the left intake camshaft sprocket between the 2 painted links.
5. Lift the chain onto the right intake camshaft sprocket. While doing this, align the marks on the balance shaft and crankshaft sprockets with the painted marks on the chain.
6. Verify that all of the timing marks are aligned.
7. Install the primary chain tensioner shoe. Torque the bolt to 22 ft. lbs. (30 Nm).
8. Compress the primary chain tensioner using the following steps:
   1. Rotate the ratchet release lever counterclockwise and hold it.
   2. Press the tensioner shoe in and hold it.
   3. Release the ratchet lever and slowly release the pressure on the shoe.
   4. Insert a pin through the hole in the lever as the lever moves to the first click. The ratchet should hold the shoe in the compressed position.
      NOTE Be sure the lever on the tensioner is facing you when installed.
      
   
   
9. Install or connect the following:
   
   Primary chain tensioner. Torque the bolts to 18 ft. lbs. (25 Nm); then remove the chain tensioner pin. 4 chain guide access plugs. Torque the plugs to 44 inch lbs. (5 Nm). Front engine lift bracket. Torque the hex head bolt to 37 ft. lbs. (50 Nm) and the internal drive bolt to 18 ft. lbs. (25 Nm). CMP sensor. Torque the bolts to 80 inch lbs. (9 Nm).
   
10. Remove the camshaft holding tools.
11. Place a small bead of RTV sealant on the 3 areas indicated in the diagram.
12. Install or connect the following:
    
    Front cover with a new gasket. Torque the bolts to 124 inch lbs. (14 Nm) and the coolant drain plug to 89 inch lbs. (10 Nm). Crankshaft balancer. Torque the bolt to 37 ft. lbs. (50 Nm); then an additional 120 degree turn.
    
13. Raise the engine cradle and install new bolts. Torque the bolts to 133 ft. lbs. (180 Nm).
14. Coat the sub-frame bushings with rubber lubricant.
15. Install or connect the following:
    
    Water pump with a new gasket. Torque the bolts to 124 inch lbs. (14 Nm). Belt tensioner. Torque the bolts to 37 ft. lbs. (50 Nm). Idler pulley. Torque the bolt to 37 ft. lbs. (50 Nm). Power steering pump pulley Drive belt Underhood accessory wiring junction block Washer and coolant reservoirs Battery and tray Front diagonal brace Rocker arm covers. Torque the bolts to 80 inch lbs. (9 Nm). Negative battery cable
    
16. Refill the cooling system.
17. Refill the crankcase.
18. Start the engine and verify no leaks.

Secondary Chain

1. Before servicing the vehicle, refer to the Precautions Section.
2. Disconnect the negative battery cable.
3. Remove the rocker arm cover and install camshaft holding fixture J-42038.
4. Remove the camshaft sprocket bolts and install the timing chain holding fixture J-42042 on the cylinder head.
5. Remove or disconnect the following:
   
   Sprockets and chain Secondary timing sprocket and chain
   

To install:

Fig. Correct sprocket alignment for the left secondary timing chain-3.5L engine

Fig. Correct sprocket alignment for the right secondary timing chain-3.5L engine

1. Install or connect the following:
   
   Secondary timing chain on the sprockets, with the drive pins at the 12 o-clock positions Sprockets and chain assembly onto the camshafts, with the chain properly aligned on the tensioner
   
2. Remove the timing chain holding fixture
3. Install the sprocket bolts. Torque the bolts to 18 ft. lbs. (25 Nm); then an additional 45 degree turn.
   
4. Remove the camshaft holding fixture.
5. Install or connect the following:
   
   Rocker arm cover Negative battery cable

To Install:

1. Install balance shaft drive gear onto the left camshaft.
2. Install the camshaft sprockets and new bolts finger tight.
3. Using a vise, compress the timing chain tensioner plunger.

4. Install a retaining clip on the tensioner to hold plunger IN during installation.
   marking timing chain
   

5. If timing chain copper links are not visible, mark 2 links on one end and 1 link on the other end to be used as timing marks.
6. Install right and left timing chain guides. Tighten bolts to 89 in-lbs (10 Nm).
7. Rotate the left camshaft until the timing mark is at the 12 o'clock position.
8. Rotate the right camshaft until the timing mark is at the 11 o'clock position.

9. Position the crankshaft using the special tool. Then remove the tool.
   Crankshaft special tool positioning
   

10. Install the crankshaft sprocket with flange facing forward.
    Crankshaft sprocket timing mark
    

11. Position lower end of left (inner) timing chain on the crankshaft sprocket. Align the copper (or marked) chain link with the timing mark on the outer flange of the crankshaft pulley. NOTE: Upper half of timing chain must be below the tensioner arm dowel.
    

12. Position the left timing chain on the camshaft sprocket. The timing mark on the camshaft sprocket must be aligned between the 2 copper (or marked) chain links.
    Left camshaft sprocket timing mark
    

13. Place the left timing chain tensioner arm on the dowel pin and install the timing chain tensioner and bolts. Tighten bolts to 18 ft-lbs (25 Nm). NOTE: Lower half of timing chain must be above the tensioner arm dowel.
    Crankshaft sprocket timing mark
    

14. Position lower end of right (outer) timing chain on the crankshaft sprocket. Align the copper (or marked) chain link with the timing mark on the outer flange of the crankshaft pulley.
    Right camshaft sprocket timing mark
    

15. Position the right timing chain on the camshaft sprocket. The timing mark on the camshaft sprocket must be aligned between the 2 copper (or marked) chain links.
16. Place the right timing chain tensioner arm on the dowel pin and install the timing chain tensioner and bolts. Tighten bolts to 18 ft-lbs (25 Nm).
17. Remove the retaining clips from the right and left timing chain tensioners.
18. Verify alignment of all timing marks.
19. Install crankshaft sensor ring on crankshaft.
20. Locate index mark on balance shaft and mark corresponding gear tooth with chalk.
21. Position balance shaft on journals. NOTE: It may be helpful to use an inspection mirror to view the marks timing marks.
    

22. Align the chalk mark on the balance shaft with the camshaft timing mark.
    Balance shaft bearing caps
    

23. Install the balance shaft bearing caps in their original locations. Follow the tightening sequence as shown in the illustration. Tighten bolts to 89 in-lbs (10 Nm).
24. Tighten the camshaft phaser sprocket bolts in the correct sequence using 2 steps, as follows:
    • Step 1-30 ft-lbs (40 Nm)
    • Step 2-tighten an additional 90 degrees
25. Position the crankshaft keyway in the 11 o'clock position.
26. Lubricate and install all camshaft roller followers. WARNING
    Engine front cover replacement procedure must be completed within 4 minutes or entire procedure must be repeated. Failure to do so may result in future leaks
    

Fig. Install the balance shaft chain with the colored links lined up on the marks on the balance shaft drive sprockets and crankshaft sprocket -ION with 2.2L engine...




This and other details can find in autozone.com (free register); when you have acces to this site, visit the section Engine Overhaul.

Good luck.

Dear Friend
Removal: Support engine: remove -engine mounting, auxiliary drive belt, water pump pulley, crankshaft pully bots & crankshaft pully, timing belt covers....turn crankshaft to TDC on No 1 cylinder, ensure crankshaft sprocket, camshaft sprocket, oil pump sprocket & balancer shaft sprocket timing marks lighned. Pls note: Timing marks on camshaft sprockets should align with cylinder head uppter face, dowl pins on camshaft sprockets should face downwards....Slacken tensioner botl. Move tensioner away from belt & tighten bolt.
Remove: automatic tensioner unit bolts, automatic tensioner unit, timing belt, crankshaft bolt, crankshaft sprocket, crankshaft sprocket guide washer...slacken balancer shaft belt rensioner bolt, move tensioner away from belt & lightly tighten bolt...Remove balancer shaft belt.

Installation:
ensure timeing marks aligned.Note: Timing marks on camshaft sprockets ahould align with cylinder head upper face, exhaust sprocket mark is on recess but inlet sprocket mark is on tooth. To check oil pump sprocket positionded sorrectly: remove blanking plug from cylinder block, insert 8mm diameter Phillips screwdriver in hole. ensure screwdriver is inserded 60mm from face of cylinder block. If screwdriveer can only be inserted 20mm-turn oil pump sprocket 360". Inset screwdiver again.
Fit balancer shaft delt in anti-clockwise direction starting at crandkshaft sprocket....Slacken balancer shaft belt tensioner notl, turn tensioner clockwise to tension belt. Tighten bolt to 15-22 Nm... Applu thump pressure to belt at tentioner, belt should deflect 5-7mm. If not: Repeat tensioning procedure.... Install - chankshaft sprocket guide washer & crankshaft sprocket.
Thighten crankshaft centre bolt, tightening torque:110-130Nm. Please note, ensure crankshaft sprocket guide washer is fittet correctly. oil threads & contact face crankshaft botl before fitting.

I'll assume you are going to replace the entire set (sprockets, guides, etc.) which I got from O'Reilly for $79.

First, set engine to #1 TDC.
Remove valve cover, fan shroud, fan, drive belt, water pump, 4 10mm bolts from bottom front of head, and 3 10mm bolts from front of oil pan. Remove lower front shield to remove oil pump. remove oil pump/distributor drive shaft, noting the orientation of the drive shaft.
Remove harmonic balance using correct puller (can be rented from local auto parts store). Remove P/S pump and A/C compressor if necessary. Remove timing cover.

IMPORTANT: Before removing oil thrower and distributor drive gear, note direction of oil thrower.
Remove oil thrower and distributor drive gear.
Remove chain guides, tensioner, chain, and finally both sprockets.
The new crank sprocket can only be installed one way, by aligning groove with keyway. The new cam sprocket will have 3 guide holes on the mounting flange, and you will need to align the knock pin with hole #2. Both sprockets should have a small dot (timing mark) on the right side of the sprocket when viewed from the front.
To install new chain, inspect chain to find the two brightly colored gold links. These two links must align with the timing marks on the sprockets. Assemble and install chain tensioner.

!!! IMPORTANT: Be sure to use new gasket when installing tensioner. Tensioner is oil pressure fed and a leaking gasket could allow chain slack, leading to premature wear or break.
Install chain guides, being sure not to let tensioner pop out.

!!! IMPORTANT: The tensioner must be fully compressed. To accomplish this, loosen the 8mm bolts in the passenger side guide (the shorter one). Compress the tensioner, adjust guide to remove slack, and tighten the two 8mm bolts.
Double check that everything is still lined up properly, and make corrections as necessary.
Install distributor drive gear and oil thrower.

!!! IMPORTANT: Ensure oil thrower is installed facing away from the distributor gear. If not, it could get caught in the distributor gear and destroy the two gears or cause engine lockup.

Before installing timing cover, inspect coolant and oil passages. If there is excessive buildup, a good system cleaner is recommended. Replace timing cover gaskets to prevent oil leakage. The best way to reinstall the timing cover is to remove the oil pan, install the timing cover, and reinstall the oil pan (replacing the pan gasket). If you don't want to do that, simply grease the top and bottom of the timing cover and lightly tap it into place with a rubber mallet. This is to prevent damage to the oil pan and head gaskets.
To install the distributor drive shaft, dab some grease on the top side of the gear to hold it in place, and line it up with the distributor. If you are having trouble lining up the shaft, pull it out and look at it from the top, and you will see that the flange is offset. At #1 TDC, the offset will be towards the front.
Install oil pump, being sure to use new gasket.

!!! IMPORTANT: Failure to replace oil pump gasket could lead to inadequate oil pressure, which will cause severe engine damage.

The remainder of the installation is a reverse of removal, using new gaskets where necessary. Before installing your valve cover is a good time to check your rocker arm clearances. This is also a good time to replace your drivebelt, and any other maintenance items as necessary.