Missing a sprocket on my go cart 5.5hp 4stroke Engine

you don't want it to, as the flushing oil has little consistancy , and it will only need a 5 min flush , then replace oil, then have to prime the oil pump as have had it flushed

1. Using sprocket installation tool No. 6792 or equivalent, press the crankshaft sprocket onto the crankshaft.
2. Install the camshaft sprockets onto the camshafts. Install and tighten the sprocket retaining bolts to 75 ft. lbs. (101 Nm).

Fig. Fig. 4: Proper camshaft sprocket alignment for timing belt installation

1. Install the crankshaft sprocket. Set the crankshaft sprocket to Top Dead Center (TDC) by aligning the notch on the sprocket with the arrow on the oil pump housing.
2. Set the camshafts to align the timing marks on the sprockets.
3. Move the crankshaft to 1 / 2 notch before TDC.
4. Install the timing belt starting at the crankshaft, then around the water pump sprocket, idler pulley, camshaft sprockets, and then around the tensioner pulley.
5. Move the crankshaft sprocket to TDC to take up the belt slack.
6. Install the tensioner to the engine block, but do not tighten.
7. Using a torque wrench on the tensioner pulley apply 250 inch lbs. (28 Nm) of tighten to the tensioner pulley.
8. With torque being applied to the tensioner pulley, move the tensioner up against the tensioner pulley bracket and tighten the fasteners to 275 inch lbs. (31 Nm).
9. Remove the tensioner plunger pin. The tension is correct when the plunger pin can be removed and replaced easily.
10. Rotate the crankshaft 2 revolutions and recheck the timing marks. Wait several minutes and then recheck that the plunger pin can easily be removed and installed.
11. Reinstall the front timing belt cover(s).
12. Reinstall the engine mount bracket.
13. Reinstall the right engine mount.
14. Remove the floor jack from under the vehicle.
15. Install the crankshaft damper and tighten to 105 ft. lbs. (142 Nm).
16. Install the accessory drive belts and adjust to the proper tension.
17. Install the right inner splash shield.
18. Reconnect the negative battery cable.
19. Check for leaks and proper engine operation.

Source: Autozone.com

Hi,
66 L6 200. Are the timing marks easy to see? I just did this last week on our 66 block. Just bring it to TDC on #1. Remove the pulley/dampner and the timing cover bolts. Remember to remove the front oil pan bolts to the timing cover.
I use an impact wrench on the cam bolt while holding the crank bolt so I don't slip out of TDC. You'll then have to remove the oil slinger. It just slips off the keyway on the crank snout. Carefully pry the cam sprocket to start wiggling it off the cam. Both the cam and crank sprockets are "keyed".
Get the new sprockets and chain aligned with their marks. Slip the crank sprocket on first until the cam sprocket needs mounted. Just remember to hold the crank, cam sprocket, and chain as an assembly when mounting. Once you get the cam sprocket started, start threading the bolt to hold it in place. Tap light a rubber mallet to seat it further on the end of cam.
I would then remove the cam bolt and coat it lightly with thread-loc and then thread it back in. You don't want it backing out later when your driving down the road. ( don't ask how I know). Remember to put the oil slinger back on.
Your Engine has an oil slinger.
Wayne

1. Remove the fan and generator V belt:



2. TIMING CHAIN (2az-FE Engine):
Before servicing the vehicle, refer to the Precautions Section.
Drain the engine oil.
Remove or disconnect the following:
Negative battery cable
Hood Right-side front wheel Engine under covers Right-side fender apron seal Front exhaust pipe Engine moving control rod and bracket Right-side engine mounting stay and bracket Accessory drive belt Engine appearance cover Engine wire Alternator Power steering pump, leave the hoses connected Ignition coils Ventilation hoses Cylinder head cover Turn the crankshaft pulley to set the No. 1 cylinder to TDC compression. Align the groove on the pulley with the timing mark -0- on the front cover. Remove the crankshaft pulley as follows:

1. TMC made: Use Special Tool 09213-54015 to hold the pulley to loosen the bolt. Use Special Tool 09950-50013 to remove the bolt and pulley.

2. TMMK made: Use Special Tool 09960-10010 to hold the pulley to remove the bolt. Use Special Tool 09950-40011 to remove the crankshaft pulley


Fig. Removing the crankshaft pulley-TMC-2.4L (2AZ-FE) engine


Fig. Removing the crankshaft pulley-TMMK-2.4L (2AZ-FE) engine


Remove or disconnect the following:
Crankshaft position sensor Lower oil pan No. 1 chain tensioner Accessory drive belt tensioner

Support the engine with a suitable engine lifting device.

Remove or disconnect the following:
Engine mounting insulators Right-side engine mounting bracket Stud bolt for the accessory drive belt tensioner from the block Front cover mounting bolts and nuts Front cover Crankshaft position sensor plate Timing chain tensioner slipper Timing chain vibration damper Timing chain Crankshaft timing sprocket

• Turn the crankshaft counterclockwise by 90°, and align an adjusting hole of the oil pump driven sprocket with the groove of the oil pump.

Fig. Align the adjusting hole of the oil pump drive sprocket with the oil pump groove-2.4L (2AZ-FE) engine


Fig. Insert a bar to lock the sprocket in position-2.4L (2AZ-FE) engine
Put a bar in the adjusting hole of the oil pump driven sprocket to temporarily lock the sprocket in position. Remove the nut.


Remove the bolt, chain tensioner and spring.


Remove the chain tensioner, oil pump sprocket and No. 2 timing chain.


To install:
Set the crankshaft key into the left horizontal position. Turn the cutout of the drive shaft to the top

Fig. Align the crankshaft key and drive shaft cutout as shown for installation-2.4L (2AZ-FE) engine
Align the yellow colored links with the timing marks of the sprocket as shown in the illustration.

Insert the sprockets with chain to the crankshaft and oil pump shaft.

Temporarily tighten the oil pump driven sprocket with the nut.

Insert the damper spring into the adjusting hole, and install the chain tensioner plate with the nut. Tighten to 9 ft. lbs. (12 Nm).

Align the adjusting hole of the oil pump driven sprocket with the groove of the oil pump.

Put a bar in the adjusting hole of the oil pump driven sprocket to temporarily lock the sprocket in position. Tighten the nut to 22 ft. lbs. (30 Nm).

Rotate the crankshaft counterclockwise by 90°, and align the crankshaft key to the top.

Install the timing chain vibration damper. Tighten to 80 inch lbs. (9 Nm).

Align the timing marks of the camshaft timing sprockets and bearing caps.

Using the crankshaft pulley bolt, turn the crankshaft and set the set key on the crankshaft upward.

Align the gold or orange colored link with the timing mark of the crankshaft timing sprocket.

Using Special Tool 09309-37010, tap in the sprocket.

Align the gold or yellow colored links with the timing marks of the camshaft timing gear and camshaft timing sprocket. Install the chain.

Fig. Align the marks of the sprockets and bearing caps to set the No. 1 cylinder at TDC-2.4L (2AZ-FE) engine

Fig. Set the crankshaft set key facing upward-2.4L (2AZ-FE) engine

Fig. Align the marked link of the timing chain with crankshaft sprocket timing mark-2.4L (2AZ-FE) engine

Fig. Tap the crankshaft sprocket in with Special Tool 09309-37010-2.4L (2AZ-FE) engine


Fig. Align the marked links of the timing chain with the camshaft sprockets during installation-2.4L (2AZ-FE) engine

Timing is not resettable by the user, as the computer controls this based on knock or no knock conditions which will advance or ****** ignition timing for optimum performance.

The valve timing is something that is set when installing the timing chain:

2.5L, 2.8L and 3.1L Engines Fig. 4: Timing chain and sprocket removal - 2.5L engine
Fig. 5: Timing chain and sprocket removal - 1996 3.1L engine shown
Fig. 6: You must use a suitable puller to remove the crankshaft sprocket

1. Disconnect the negative battery cable.
2. Remove the timing chain front cover assembly, as outlined earlier in this section.
3. Rotate the crankshaft until the timing marks on the crankshaft sprocket and camshaft sprocket locator hole are aligned to the marks on the engine block or timing chain dampener. This is the No. 1 piston at TDC (No. 4 firing position).
4. Unfasten the camshaft sprocket retaining bolt/screw, then remove the camshaft sprocket and the timing chain. NOTE: If the camshaft sprocket does not come off easily, a light blow on the lower edge of the sprocket with a rubber mallet should loosen the sprocket.
   
5. Remove the crankshaft sprocket using tool J 23444-A or equivalent puller.
6. If necessary, remove the timing chain dampener retaining bolts, then remove the dampener. To install:
   
7. Install the crankshaft sprocket using tool J 38612 until it the sprocket is fully seated on the flange of the crankshaft nose. Apply a coat of Molykote® or equivalent, to the sprocket thrust surface.
8. Hold the camshaft sprocket with the chain hanging down, and align the marks on the camshaft and crankshaft sprockets.
9. If removed, install the timing chain damper to the engine block.
10. Align the dowel in the camshaft with the dowel hole in the camshaft sprocket. Install the camshaft sprocket and chain, use the camshaft sprocket bolts to draw the sprocket on to the camshaft. Tighten the sprocket bolts to 18 ft. lbs. (25 Nm).
11. Lubricate the timing chain with engine oil.
12. Install the front cover assembly, as outlined earlier in this section.
13. Connect the negative battery cable.

5.0L and 5.7L Engines To Remove:

1. Remove the crankshaft balancer.
2. Drain the cooling system.
3. Remove the water pump.
4. Drain the engine oil.
5. Remove all engine oil pan fasteners except two nuts at rear of engine.
6. Separate the engine oil pan from the front cover.
7. Disconnect the crankshaft position (CKP) sensor wire.
   
   
8. Remove engine front cover.
   
   
9. Pry the oil seal from the front cover.
10. Inspect the front cover seal area and crankshaft balancer seal area for damage.
    
    
11. Rotate the crankshaft until the timing marks on the crankshaft and the camshaft sprockets are aligned.
12. Remove the crankshaft position sensor reluctor ring.
    
    NOTE: Free play on the slack side of the camshaft timing chain must measure less than 0.43 inch (11Mm) or timing chain and sprockets must be replaced.
    
13. Remove the camshaft sprocket bolts.
14. Remove the camshaft sprocket.
15. Remove the camshaft timing chain. NOTE: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.
    
    
    
16. Remove the crankshaft sprocket using J 5825-A.
17. Remove the crankshaft balancer woodruff keys (if required).

To Install:

1. Install the crankshaft balancer woodruff keys into the crankshaft.
2. Align the crankshaft sprocket keyway with the crankshaft balancer woodruff key. WARNING
   Wear eye protection when installing crankshaft sprocket.
   
   
   
3. Use J 5590 to install crankshaft sprocket.
4. Install the camshaft sprocket and camshaft timing chain.
   
   
5. Ensure that the crankshaft sprocket alignment mark is in the 12 o'clock position and the camshaft sprocket alignment mark is at the 6 o'clock position.
6. Install the camshaft sprocket bolts and tighten the camshaft sprocket bolts;
   • Torque to: 18 ft. lbs. (25 Nm)
7. Install the crankshaft position sensor reluctor ring until completely seated against crankshaft sprocket. NOTE: The composite type engine front cover and seal must not be reused. Always install a new engine cover with a new seal.
   
8. Install new engine front cover and bolts.
   • Torque bolts to: 106 in. lbs. (12 Nm)
9. Clean sealer from corners of oil pan gasket where it meets the engine front cover.
   
   
10. Apply a 0.196 in (5 mm) bead of adhesive, GM P/N 12346141 or equivalent, 1.0 in (25 mm) long to the engine front cover to engine block junction.
11. Install oil pan bolts.
    • Torque bolts to: 106 in. lbs. (12 Nm)
12. Tighten oil pan nuts.
    • Torque bolts to: 18 ft. lbs. (25 Nm)
13. Connect the crankshaft position sensor wire.
14. Install the water pump.
15. Install the crankshaft balancer.
16. Fill the engine to the proper level with oil.
17. Fill the engine to the proper level with coolant.
18. Test drive the vehicle to confirm the repairs.

Timing Belt Removal & Installation 3.0L Engine To Remove:
Exploded view of the timing belt and sprocket assembly (3.0L engine)

1. Disconnect the negative battery cable.
2. Remove the accessory drive belts. Remove the engine mount insulator from the engine support bracket.
3. Remove the engine support bracket. Remove the crankshaft pulleys and torsional damper. Remove the timing belt covers.
4. Rotate the crankshaft until the sprocket timing marks are aligned. The crankshaft sprocket timing mark should align with the oil pump timing mark. The rear camshaft sprocket timing mark should align with the generator bracket timing mark and the front camshaft sprocket timing mark should align with the inner timing belt cover timing mark.
5. If the belt is to be reused, mark the direction of rotation on the belt for installation reference. Mark the direction of travel for the timing belt for correct installation
   
6. Loosen the timing belt tensioner bolt and remove the timing belt.
7. If necessary, remove the timing belt tensioner. Turn the center tensioner pulley bolt until the timing belt has enough slack . . .
   . . . then slide the timing belt off of the camshaft sprockets
   
8. Remove the crankshaft sprocket flange shield and crankshaft sprocket.
9. Hold the camshaft sprocket using spanner tool MB990775 or equivalent, and remove the camshaft sprocket bolt and washer. Remove the camshaft sprocket.

To Install:

1. Install the camshaft sprocket on the camshaft with the retaining bolt and washer. Hold the camshaft sprocket using spanner tool MB990775 or equivalent, and tighten the bolt to 70 ft. lbs. (95 Nm).
2. Install the crankshaft sprocket.
3. If removed, install the timing belt tensioner and tensioner spring. Hook the spring upper end to the water pump pin and the lower end to the tensioner bracket with the hook out.
4. Turn the timing belt tensioner counterclockwise full travel in the adjustment slot and tighten the bolt to temporarily hold it in this position.
5. Rotate the crankshaft sprocket until its timing mark is aligned with the oil pump timing mark.
6. Rotate the rear camshaft sprocket until its timing mark is aligned with the timing mark on the generator bracket.
7. Rotate the front (radiator side) camshaft sprocket until its mark is aligned with the timing mark on the inner timing belt cover.
8. Install the timing belt on the crankshaft sprocket while keeping the belt tight on the tension side. NOTE: If the original belt is being reused, be sure to install it in the same rotational direction.
   
9. Position the timing belt over the front camshaft sprocket (radiator side). Next, position the belt under the water pump pulley, then over the rear camshaft sprocket and finally over the tensioner. CAUTION
   If any binding is felt when adjusting the timing belt tension by turning the crankshaft, STOP turning the engine, because the pistons may be hitting the valves.
   Rent or borrow the special tool to hold the camshaft sprockets steady . . .
   . . . while loosening the center retaining bolt on the camshaft pulley, then . . .
   . . . remove the camshaft sprocket from the end of the camshaft
   Timing belt tensioner and spring positions
   Timing belt routing and timing mark locations
   
   
10. Apply rotating force in the opposite direction to the front camshaft sprocket (radiator side) to create tension on the timing belt tension side. Check that all timing marks are aligned.
11. Install the crankshaft sprocket flange.
12. Loosen the tensioner bolt and allow the tensioner spring to tension the belt.
13. Rotate the crankshaft two full turns in a clockwise direction. Turn the crankshaft smoothly and in a clockwise direction only.
14. Again line up the timing marks. If all marks are aligned, tighten the tensioner bolt to 250 in. lbs. (28 Nm). Otherwise repeat the installation procedure.
15. Install the timing belt covers. Install the engine support bracket. Tighten the support bracket mounting bolts to 35 ft. lbs. (47 Nm).
16. Install the engine mount insulator, torsional damper and crankshaft pulleys. Tighten the crankshaft pulley bolt to 112 ft. lbs. (151 Nm).
17. Install the accessory drive belts.
18. Reconnect the negative battery cable.
19. Run the engine and check for proper operation.

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.

Review this diagrams:





Fig. Timing belt sprocket alignment -3.5L engine




Fig. Align the timing belt sprockets as indicated before removing the timing belt-1.5L engine



Fig. Align the timing belt sprockets as indicated before removing the timing belt-1995-00 1.5L engine




Fig. Camshaft and crankshaft sprocket alignment for proper timing belt replacement-1.8L and 2.0L SOHC engines



Fig. Silent shaft sprocket alignment marks for belt replacement-1.8L and 2.0L SOHC engines

I hope help you with this; remeber rated this help.

no it should not have a missing tooth it should be a <v> on the outside of the sprocket