Where is the TDC notch on the crankshaft pulley?

once you have the timing belt exposed. Match the timing mark of the camshaft pulley to the notch on the engine block (Located at 5 O'clock). The notch on the oil pump is not important but the book wants the notch on the pulley to be at 12 O'clock. The crankshaft sprocket has a timing mark on it as well. Line that up with the notch on the engine block located at 1 O'clock. After the belt is installed and each length is tight between all pulleys and sprocket. Recheck that the timing marks are still correct. Now temporarily install the crankshaft bolt into the crankshaft and SLOWLY and CAREFULLY bar the engine over until it is back where you started (TDC on compression stroke). This engine is a non-interference engine so you won't feel binding but you still want to take it slow. I highly recommend removing the spark plugs first. Forcefully barring the engine through a compression stroke could damage the timing belt. Lastly, as far as the ignition timing goes. There is nothing to adjust. The crankshaft sensor is not adjustable and goes on exactly how you removed it.

You have it right, the yellow mark is TDC and it's the notch furthest to the left...it e to be set at 15 degrees before TDC, but you have to disconnect the I.A.C sensor to do it.if it's still that far out, you're probably of by a tooth.bring #1 piston to TDC, pull out distributor, turn rotor to #1 on dist cap and put in dist..adjust accordingly. .

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

• No 1 piston at TDC on the firing stroke.
• crankshaft pulley notch in line with TDC mark on timing covet
• cam shaft pully notch in line with mark on head

If it has dizzy then No1 at tdc will have rotoe pointing on number 1 lead.
if has Igniters then line notches on cam to notches on head

It is typical to have to stretch the belt a tad as you install--needs to be tight across the cam sprockets and from the right cam to the crank gear. Then the tensioner should take up the slack on the other side.

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2. Fig. Camshaft and crankshaft alignment marks-2.4L engine

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To install:

Fig. Install the belt tensioner


Fig. Proper timing belt routing

1. Set the crankshaft sprocket at TDC by aligning the sprocket with the arrow on the oil pump housing.
2. Set the camshafts timing marks so that the exhaust camshaft sprocket is a 1 / 2 notch below the intake camshaft sprocket.
3. Install the timing belt by starting at the crankshaft. Go around the water pump sprocket, idler pulley, camshaft sprockets and the tensioner.
4. Move the exhaust camshaft sprocket counterclockwise to align the marks and to remove any slack.
5. Insert a 6mm Allen wrench into the tensioner opening on the top plate of the tensioner pulley. Rotate the top plate counterclockwise. The pulley will move against the belt and the tensioner setting notch will start to move clockwise. Continue to move the top plate counterclockwise until the setting notch is aligned with the spring tang. Using the Allen wrench, to prevent the top plate from moving, tighten the tensioner lock bolt to 220 inch lbs. (25 Nm). Make sure the setting notch and spring tang are still aligned after the lock nut is tighten. If not repeat the procedure.
6. Remove the wrench from the belt tensioner.
   NOTE When repositioning the crankshaft to the TDC position, this must be done during the clockwise rotation movement. If the TDC is missed, rotate a further two full turns until TDC is reached. Do not rotate the crankshaft counterclockwise as this will result in improper tensioner settings.
   
7. Rotate the crankshaft two full revolutions and verify that the TDC marks are properly aligned.
8. Check the spring tang is within the tolerance window, if not repeat the previous two steps.

2.0L Engine SOHC ENGINE

1. Remove the drive belt and timing cover.
2. Raise the car and support it with safety stands.
3. Remove the right-hand splash shield and the crankshaft pulley. Fig. 11: The timing marks on both the camshaft and crankshaft pulleys must be aligned like this before removing or installing the timing belt — 2.0L SOHC engines
   
   
4. Align the timing marks as illustrated in the accompanying illustration.
5. Refer to the accompanying illustration and remove the timing belt as follows:
   1. Loosen the timing belt tensioner bolt (1).
   2. Use an 8mm Allen wrench, and turn the tensioner (2) counterclockwise 1⁄4 turn.
   3. Insert a 1⁄8 inch drill bit in the hole (3) to lock the belt tensioner in place.
   4. Remove the timing belt (4). Fig. 12: Remove the timing belt by following these 4 numbered steps (refer to the text for an explanation) — 2.0L SOHC engine
      
      
   5. Inspect the belt for damage and signs of oil leakage. To install: NOTE: Install the timing belt over the sprocket in a counterclockwise direction starting at the crankshaft. Keep the belt span between the crankshaft and camshaft tight when installing the belt over the camshaft.
      
6. Install the timing belt and remove the drill bit.
7. Tighten the tensioner bolt to 15–22 ft. lbs. (20–30 Nm).
8. Rotate the engine two complete revolutions and make sure the timing marks are aligned.
9. Install the timing belt cover and crankshaft pulley.
10. Install the right-hand splash shield and the drive belt.
11. Start the car and check for proper operation.

DOHC ENGINE NOTE: A camshaft alignment timing tool (No. T94P-6256-CH or equivalent) and a crankshaft Top Dead Center (TDC) timing peg tool (No. T97P-6000-A or equivalent) are required for this procedure. NOTE: Make sure the correct notch in the pulley is indexed to the lower cylinder block. Refer to the accompanying illustration. Fig. 13: A camshaft alignment timing tool . . .
Fig. 14: . . . and a crankshaft TDC timing peg tool are required when removing and installing the timing belt

1. Remove the spark plugs.
2. Rotate the crankshaft to TDC.
3. Locate and remove the plug bolt by the Crankshaft Position (CKP) sensor (refer to the illustration) and install the TDC timing peg. Fig. 15: Remove the plug bolt by the Crankshaft Position (CKP) sensor and install the TDC timing peg
   
   
4. Raise the car and support it with safety stands.
5. Unfasten the splash shields bolts and remove the shield.
6. Lower the car and remove the water pump pulley.
7. Remove the valve cover and the timing belt covers.
8. Align the camshafts and install the camshaft alignment tool on the back of the camshafts as illustrated. Fig. 16: Align the camshafts and install the alignment tool
   WARNING
   If the camshaft belt is being reused, mark the direction of the camshaft belt to the rotation of the camshaft prior to removal, or premature wear and belt failure could occur.
   
9. Loosen the tensioner pulley bolt and relieve the tension on the belt by disconnecting the tensioner tab from the timing cover back plate.
10. Slide the belt off the sprockets.
11. Inspect the belt for wear and replace as necessary. Fig. 17: Timing belt routing — 2.0L DOHC engine
    To install:
    
12. If, for any reason, the engine was disturbed, the camshafts moved or the sprockets replaced, perform the following procedure: NOTE: Make sure the correct notch in the pulley is indexed to the lower cylinder block.
    1. Position the crankshaft just prior to Top Dead Center (TDC).
    2. If not already done, locate and remove the plug bolt by the Crankshaft Position (CKP) sensor (refer to the illustration) and install the TDC timing peg.
    3. Rotate the crankshaft clockwise against the TDC peg. NOTE: Installation of the alignment tool into the exhaust camshaft may require the camshafts to be rotated clockwise.
       
    4. Install the camshaft alignment tool on the back of the camshafts.
    5. Install the timing belt and engage the timing belt tensioner tab into the upper timing cover backplate. NOTE: A 3⁄8 inch drive, 10mm, 2 inch torque adapter offset is required to tighten the tensioner bolt.
       
    6. Using a 6mm Allen wrench, adjust the tensioner until the index marks are aligned and tighten the bolt to 17–20 ft. lbs. (22–28 Nm).
    7. Rotate the crankshaft clockwise against the TDC alignment peg, then remove the camshaft alignment tool.
    8. Remove the TDC peg tool and install the plug bolt.
    9. Install the timing and valve covers.
    10. Install the water pump pulley and the splash shield.
    11. Install the spark plugs. If the engine or the camshaft were not disturbed in any way, or the sprockets were not removed, perform the following procedure:
        
13. Install the timing belt and engage the timing belt tensioner tab into the upper timing cover backplate. Fig. 18: Engage the timing belt tensioner tab into the upper timing cover backplate . . .
    Fig. 19: . . . then use a 6mm Allen wrench to adjust the tensioner until the index marks are aligned
    Fig. 20: A 3⁄8 inch drive, 10mm, 2 inch torque adapter offset is required to tighten the tensioner bolt (arrow) — 2.0L DOHC engine
    NOTE: A 3⁄8 inch drive, 10mm, 2 inch torque adapter offset is required to tighten the tensioner bolt.
    
14. Using a 6mm Allen wrench, adjust the tensioner until the index marks are aligned and tighten the bolt to 17–20 ft. lbs. (22–28 Nm).
15. Rotate the crankshaft clockwise against the TDC alignment peg, then remove the camshaft alignment tool. Fig. 21: Rotate the crankshaft clockwise against the TDC alignment peg
    
    
16. Remove the TDC peg tool and install the plug bolt.
17. Install the timing and valve covers.
18. Install the water pump pulley and the splash shield.
19. Install the spark plugs.

TDC is top dead center/ remove spark plug on cylinder no. 1/ rotate the crankshaft pulley using a socket wrench and power handle and check if the piston on your cylinder no. 1 reach the top center that is TDC/ remove timing belt cover and locate a synchronized marking on your camshaft and crankshaft pulley/ remove old timing belt/ install a new one but make sure that the mark on your camshaft and crankshaft is perfectly synchronized before putting the cover/ manually rotate the crankshaft pulley again and see if it rotates 360 deg. freely then you can be sure you did the job correctly.

Cylinder #1 at top dead center. Mark on the camshaft gear is straight up,as referenced to engine. Note that the engine tilts to the rear so reference the flat line of the head for 12'oclock positioning of cam timing mark.Distributor rotor points to #1 cylinder. If you have crankshaft pulley off, and can see the timing mark there, it should be straight down with #1 at TDC. After reassembly, start engine and jumper E1 and TE1 in the diagnostics box. This gives a smooth steady idle. Use timing light pointed at crankshaft pulley and hooked to #1 cylinder spark plug wire to check. Loosen distributor's 2 mounting bolts enough to turn it. Adjust as necessary. If you are having trouble seeing the notch on the crank pulley, get a white paint pen to increase it's visibility. Reference the rotating pulley mark to the stationary mark on the lower timing belt cover.

2.4L Engine
NOTE You may need DRB scan tool to perform the crankshaft and camshaft relearn alignment procedure.

1. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Right front wheel and inner splash shield
     
   • Accessory drive belts
     
   • Crankshaft damper
     
   • A/C compressor/alternator tensioner and pulley assembly
     
   • Lower front timing cover
     
   • Upper front timing cover
     
   • Right engine mount
     
   • Engine mount bracket
     
   
   NOTE This is an interference engine. Do not rotate the crankshaft or the camshafts after the timing belt has been removed. Damage to the valve components may occur. Before removing the timing belt, always align the timing marks.
   
2. Rotate the crankshaft until the Top Dead Center (TDC) mark on the oil pump housing aligns with the TDC mark on the camshaft sprocket (located on the trailing edge of the tooth).
   
3. Loosen the timing belt tensioner lock bolt.
   
4. Insert a 6mm Allen wrench into the hexagon opening located on the top plate of the belt tensioner pulley. Rotate the top plate clockwise until there is enough slack to remove the belt.
   
5. If necessary, remove the camshaft timing belt sprockets.
   
6. If necessary, remove the crankshaft timing belt sprocket using removal tool No. 6793, or equivalent.
   
7. Place the tensioner into a soft-jawed vise to compress the tensioner.
   
8. After compressing the tensioner, insert a pin (a 5/64 in. Allen wrench will also work) into the plunger side hole to retain the plunger until installation.
   

Camshaft and crankshaft alignment marks—2.4L engine




To lock the timing belt tensioner, be sure to fully insert the smaller Allen wrench into the tensioner as shown—2.4L engine





Installation of the timing belt, notice the camshaft alignment— 2.4L (VIN B) engine


To install:

1. If necessary, use tool No. 6792, or equivalent, to install the crankshaft timing belt sprocket onto the crankshaft.
   
2. If necessary, install the camshaft sprockets onto the camshafts. Install and tighten the camshaft sprocket bolts to 75 ft. lbs. (101 Nm).
   
3. Set the crankshaft sprocket to Top Dead Center (TDC) by aligning the notch on the sprocket with the arrow on the oil pump housing.
   
4. Set the camshafts timing marks so the exhaust camshaft is 1/2 notch below intake camshaft sprocket. Make sure the arrows on both camshaft sprockets are facing up
   
5. Install the timing belt starting at the crankshaft, then around the water pump sprocket, idler pulley, camshaft sprockets and around the tensioner pulley.
   
6. Move the exhaust camshaft sprocket counterclockwise to take up the belt slack.
   
7. Insert a 6mm Allen wrench into the hexagon opening located on the top plate of the belt tensioner pulley. Rotate the top plate counterclockwise until there is no slack on the belt. The tensioner setting notch will start to move clockwise. Watch the notch and continue rotating the top plate counterclockwise until the setting notch is aligned with the spring tang. Using the Allen wrench to prevent the top plate from moving, tighten the tensioner lock bolt to 220 inch lbs. (25 Nm). The setting notch and spring tang should remain aligned after the lock nut is tightened.
   
8. Rotate the crankshaft 2 revolutions and recheck the timing marks.
   
9. Check the spring tang is within the tolerance window. If not within the window, reinsert the Allen wrench and into the hexagon opening located on the top plate of the belt tensioner pulley. Rotate the top plate counterclockwise until there is no slack on the belt. The tensioner setting notch will start to move clockwise. Watch the notch and continue rotating the top plate counterclockwise until the setting notch is aligned with the spring tang. Using the Allen wrench to prevent the top plate from moving, tighten the tensioner lock bolt to 220 inch lbs. (25 Nm). The setting notch and spring tang should remain aligned after the lock nut is tightened.
   
10. Install the engine mount bracket.
    
11. Install the front timing belt covers.
    
12. Install the A/C compressor/alternator tensioner and pulley assembly.
    
13. Install the right engine mount.
    
14. Install the crankshaft damper
    
15. Install the accessory drive belts and adjust to the proper tension.
    
16. Install the right inner splash shield and wheel.
    
17. Reconnect the negative battery cable.
    
18. Perform the crankshaft and camshaft relearn alignment procedure using the DRB scan tool, or equivalent
    

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this is for the crank pulley timing marks .....