98 Honda Accord timing belt change, how do I keep engine from tuning while loosening crankshaft pulley?

The Crankshaft Position Sensor for the 2.3L 4-Cyl. engine is located behind the crankshaft pulley on the oil pump assembly.



DTC P0335 How To Change Honda Accord Crankshaft Position Sensor

"The crankshaft timing pointer must be perfectly aligned with the white mark on the flywheel or flex-plate; the camshaft pulley must be aligned so that the word UP is at the top of the pulley and the marks on the edge of the pulley are aligned with the surfaces of the head.
Install the timing belt over the pulleys and tensioners.
Loosen the bolt used to lock the timing belt tensioner. Loosen, then tighten the timing belt adjusting nut.
Turn the crankshaft counterclockwise until the cam pulley has moved 3 teeth; this creates tension on the timing belt. Loosen, then tighten the adjusting nut and tighten it to 33 ft. lbs. (45 Nm). Tighten the bolt used to lock the timing belt tensioner.
Realign the timing belt marks, then install the balancer belt drive sprocket on the crankshaft.
Align the front balancer pulley; the face of the front timing balancer pulley has a mark, which must be aligned with the notch on the oil pump body. This pulley is the one at 10 o'clock to the crank pulley when viewed from the pulley end.
Align the rear timing balancer pulley (2 o'clock from the crank pulley) using a 6 x 100mm bolt or rod. Mark the bolt or rod at a point 2.9 in. (74mm) from the end. Remove the bolt from the maintenance hole on the side of the block; insert the bolt or rod into the hole. Align the 2.9 in. (74mm) mark with the face of the hole. This pin will hold the shaft in place during installation.
Install the balancer belt. Once the belts are in place, be sure that all the engine alignment marks are still correct. If not, remove the belts, realign the engine and reinstall the belts. Once the belts are properly installed, slowly loosen the adjusting nut, allowing the tensioner to move against the belt. Remove the pin from the maintenance hole and reinstall the bolt and washer.
Turn the crankshaft 1 full turn, then tighten the adjuster nut to 33 ft. lbs. (45 Nm). Remove the bolt used to lock the timing belt tensioner."

" " Chilton Library

There is no 2.2L motor in a 1998 Honda Accord.
The Crankshaft Position Sensor for the 2.3L 4-Cyl. engine is located behind the crankshaft pulley on the oil pump assembly.

• Car jack
• Jack stands
• Torque wrench
• Chain wrench
• 3/8 inch drive ratchet
• 1/2 inch drive ratchet
• 10 mm wrench
• 12 mm wrench
• 10 mm socket (3/8 inch)
• 14 mm socket (3/8 inch)
• 17 mm socket (1/2 inch)
• 19 mm socket (1/2 inch)
• Timing belt
• Balancer belt
• Bottle of Liquid Paper

Disconnect the negative battery terminal. Using a ½-inch-drive ratchet and the 19 mm socket, turn the center bolt on the crankshaft so that number-one cylinder piston is at top dead center (TDC). You will know you ware at TDC when the mark on the crank is in alignment with the arrow on the timing cover.

Disconnect the cruise control connector and remove the cruise control actuator. Loosen the upper mounting bolt with the 14 mm socket. Use a 12 mm socket to loosen the lower nut then use a 10 mm socket to loosen the adjuster from the power steering pump and remove the belt.

Loosen the upper air conditioner mounting bolt using the 14 mm socket. Use the 12 mm socket to loosen the lower nut and adjusting bolt on the alternator and remove the alternator/AC belt. Remove the valve cover using a 10 mm socket.

Place the jack behind the left front wheel where the arrow is located indicating the jack location, and raise the vehicle. Put the jack stand under the subframe behind the jack, then lower the jack. Remove the left front wheel for easy access to the crank pulley. Using a block of wood atop the jack, place the jack under the oil pan and lift with slight pressure to hold the engine in place. Remove the side engine mount using a 17 mm deep socket.

Take off the dipstick, pipe tube and upper timing cover using a 10 mm socket.
Then remove the timing belt adjuster rubber seal without loosening the adjuster nut. Take off the crankshaft pulley bolt. Use the chain wrench to hold the the crankshaft pulley while turning the crankshaft pulley bolt with a 19 mm socket. Use the 10 mm wrench and 10 mm socket to remove the bolts on the lower cover. Remove the lower cover and mark the location of the cam, crank and balancer shaft with Liquid Paper. Remove the balancer shaft belt and timing belt. Install the timing belt and the balancer shaft belt in the reverse order of removing them. During Installation of the crank pulley, coat the threads of the crank pulley bolt with engine oil and tighten it to 159 foot-pounds. Finally, adjust the tension of the power steering and alternator belts as well.

check for spark and fuel after it dies.

If there is spark but no fuel, then the fuel pump may be bad or a clogged fuel filter.

If there is fuel but not spark, then the ignition control module or the ignition coil could be bad.

Also, check that the timing belt is timing the engine correctly.
Timing Belt & Balancer Belt

Removal & Installation

2.3L Engine

To Remove:

1. Record anti-theft code for radio.
   
2. Disconnect battery negative cable then positive cable.
   
   
   
   
   
   
   
   
   
   
   
3. Turn crankshaft pulley until TDC is achieved.
   
4. Raise and safely support vehicle.
   
5. Remove front tire assembly.
   
6. Remove splash shield.
   
7. Remove power steering belt.
   
8. Remove alternator and alternator bracket.
   
9. Safely support engine under oil pan.
   
   
   
   
   
   Upper bracket removal
   
   
   
   
   
10. Remove stop, detach ground cable and remove upper bracket.
    
11. Remove cylinder head cover.
    
12. Remove upper cover.
    
13. Remove dipstick and tube assembly.
    
14. Remove crankshaft pulley.
    
15. Remove adjusting nut rubber seal and remove lower cover.
    
    
    
    
    
    Timing belt/balancer belt removal
    
    
    
    
    
16. Loosen adjusting nut 1 turn.
    
17. Push up on balancer belt tensioner to relieve belt tension.
18. Push down on timing belt tensioner to relieve belt tension.
    
19. Tighten adjusting nut 1 turn.
    
20. Remove balancer belt and timing belt.

To Install:


NOTE: Clean balancer belt drive pulley, timing belt pulleys and
upper/lower timing cover prior to belt installation.

1. Set timing belt drive pulley to TDC by aligning dimple on pulley with dimple
   on oil pump.
   
   
   
   
   
   
   
   
   
   
   
2. Set camshaft pulley to TDC so that "UP" mark is at top and grooves align
   with top of cylinder head.
   
   
   
   
   
   Timing belt installation
   
   
   
   
   
3. Starting with driver pulley, install timing belt in a counterclockwise
   sequence.
   
4. Loosen and ten retighten adjusting nut.
   
5. Install balancer belt drive pulley.
   NOTE: Inspect rubber seal on lower cover and replace as necessary.
   
   
6. Install lower cover.
   
7. Install crankshaft pulley and bolt.
   
8. Rotate crankshaft pulley counterclockwise several times to seat belt.
   
9. Loosen adjusting nut 1 turn.
   
10. Rotate crankshaft counterclockwise 3 teeth on camshaft pulley.
    
11. Tighten adjusting nut to 33 ft lb (44 Nm).
    
    
    
    
    
    
    
    
    
    
    
12. Turn crankshaft pulley until TDC is achieved.
    
    
    
    
    
    
    
    
    
    
    
13. Ensure that camshaft pulley "UP" mark is at top and grooves align with top
    of cylinder head.
    
14. Remove crankshaft pulley and lower cover.
    
15. Rotate crankshaft to TDC again and lock timing belt adjuster arm with a 6 mm
    timing cover bolt.
    
16. Loosen adjuster nut 1 turn and ensure that belt tensioner freely moves.
    
17. Push tensioner up and tighten adjusting nut.
    
    
    
    
    
    Balancer shaft alignment
    
    
    
    
    
18. Remove bolt and washer from maintenance hole.
    
19. Using a 6 X 100 mm bolt, scribe a mark 2.9 in (74 mm) from end.
    
20. Insert bolt into maintenance hole and hole in balancer shaft.
    
21. Install bolt up to scribed line.
    
    
    
    
    
    Balancer shaft alignment
    
    
    
    
    
22. Align groove on balancer shaft with pointer on oil pump housing.
    
23. Install balancer belt and loosen adjusting nut 1 turn to tension.
    
24. Retighten bolt.
    
    
    
    
    
    Balancer shaft alignment
    
    
    
    
    
25. Remove bolt from maintenance hole and install bolt and washer. Tighten to
    22 ft lb (29 Nm).
    
26. Reinstall crankshaft pulley.
    
27. Loosen adjusting nut 1 turn.
    
28. Rotate crankshaft pulley counterclockwise 1 turn and tighten adjusting nut.
    
29. Remove bolt from timing belt adjuster arm.
    NOTE: Inspect rubber seal on lower cover and replace as necessary.
    
    
30. Remove crankshaft pulley.
    
31. Install lower cover.
    
32. Install seal at adjusting nut.
    NOTE: Crankshaft pulley, bolt and washer must be cleaned prior to
    installation.
    
    
33. Lubricate crankshaft pulley bolt between head and washer and bolt threads
    with clean engine oil.
    
    
    
    
    
    
    
    
    
    
    CAUTION
    Do not use impact wrench to perform
    following step.
    
    
34. Install crankshaft pulley and tighten bolt using special tools to 181 ft
    lb (245 Nm).
    
35. Install dipstick/tube assembly.
    
36. Install upper cover. Tighten bolts to 9 ft lb (12 Nm).
    
37. Install cylinder head cover.
    
38. Install alternator bracket and alternator.
    
39. Install power steering pump belt and alternator belt.
    
    
    
    
    
    Upper bracket installation
    
    
    
    
    
40. Install upper bracket and tighten fasteners in proper numbered sequence.
    
41. Install stop.
    
42. Install battery and enter radio anti-theft code.

Timing Belt and Tensioner REMOVAL & INSTALLATION 1984–87 Engines

1. Turn the crankshaft pulley until it is at Top Dead Center.
2. Remove the pulley belt, water pump pulley, crankshaft pulley, and timing gear cover. Mark the direction of timing belt rotation.
3. Loosen, but do not remove, the tensioner adjusting bolt and pivot bolt.
4. Slide the timing belt off of the camshaft timing gear and the crankshaft pulley gear and remove it from the engine.
5. To remove the camshaft timing gear pulley, first remove the center bolt and then remove the pulley with a pulley remover or a brass hammer. This can be accomplished by simply removing the timing belt upper cover, loosening the tensioner bolts, and sliding the timing belt off of the gear to expose the gear for removal. NOTE: If you remove the timing gear with the timing belt cover in place, be sure not to let the woodruff key fall inside the timing cover when removing the gear from the camshaft. Inspect the timing belt. Replace if over 90,000 miles old, if oil soaked (find source of oil leak also), or if worn on leading edges of belt teeth. Fig. 1: Timing belt and front cover assembly — 1984–87 engines
   Fig. 2: Positioning the crankshaft and camshaft pulleys before installing the timing belt — 1984–87 engines
   Fig. 3: Timing belt tension adjustment — 1984–87 engines
   To install:
   
6. Be sure to install the crankshaft pulley and the camshaft timing gear pulley in the top dead center position. Align the marks on the camshaft timing gear so they are parallel with the top of the cylinder head and the woodruff key is facing up. NOTE: When installing the timing belt, do not allow oil to come in contact with the belt. Oil will cause the rubber to swell. Be careful not to twist the belt unnecessarily or bend in a 90°angle, since it is made with fiberglass; nor should you use tools having sharp edges when installing or removing the belt. Be sure to install the belt with the arrow facing in the same direction it was facing during removal.
   
7. After installing the belt, adjust the belt tension by first rotating the crankshaft counterclockwise 1/4 turn. Then, re-tighten the adjusting bolt and finally the tensioner pivot bolt.
8. Replace the other components removed for belt access.
9. Start the car, check timing and adjust if necessary WARNING
   Do not remove the adjusting or pivot bolts, only loosen them. When adjusting, do not use any force other than the adjuster spring. If the belt is too tight, it will result in a shortened belt life.
   

To Install:
NOTE: Clean balancer belt drive pulley, timing belt pulleys and upper/lower timing cover prior to belt installation.

1. Set timing belt drive pulley to TDC by aligning dimple on pulley with dimple on oil pump.
   
   
2. Set camshaft pulley to TDC so that "UP" mark is at top and grooves align with top of cylinder head. Timing belt installation
   
   
3. Starting with driver pulley, install timing belt in a counterclockwise sequence.
4. Loosen and ten retighten adjusting nut.
5. Install balancer belt drive pulley. NOTE: Inspect rubber seal on lower cover and replace as necessary.
   
6. Install lower cover.
7. Install crankshaft pulley and bolt.
8. Rotate crankshaft pulley counterclockwise several times to seat belt.
9. Loosen adjusting nut 1 turn.
10. Rotate crankshaft counterclockwise 3 teeth on camshaft pulley.
11. Tighten adjusting nut to 33 ft lb (44 Nm).
    
    
12. Turn crankshaft pulley until TDC is achieved.
    
    
13. Ensure that camshaft pulley "UP" mark is at top and grooves align with top of cylinder head.
14. Remove crankshaft pulley and lower cover.
15. Rotate crankshaft to TDC again and lock timing belt adjuster arm with a 6 mm timing cover bolt.
16. Loosen adjuster nut 1 turn and ensure that belt tensioner freely moves.
17. Push tensioner up and tighten adjusting nut. Balancer shaft alignment
    
    
18. Remove bolt and washer from maintenance hole.
19. Using a 6 X 100 mm bolt, scribe a mark 2.9 in (74 mm) from end.
20. Insert bolt into maintenance hole and hole in balancer shaft.
21. Install bolt up to scribed line. Balancer shaft alignment
    
    
22. Align groove on balancer shaft with pointer on oil pump housing.
23. Install balancer belt and loosen adjusting nut 1 turn to tension.
24. Retighten bolt. Balancer shaft alignment
    
    
25. Remove bolt from maintenance hole and install bolt and washer. Tighten to 22 ft lb (29 Nm).
26. Reinstall crankshaft pulley.
27. Loosen adjusting nut 1 turn.
28. Rotate crankshaft pulley counterclockwise 1 turn and tighten adjusting nut.
29. Remove bolt from timing belt adjuster arm. NOTE: Inspect rubber seal on lower cover and replace as necessary.
    
30. Remove crankshaft pulley.
31. Install lower cover.
32. Install seal at adjusting nut. NOTE: Crankshaft pulley, bolt and washer must be cleaned prior to installation.
    
33. Lubricate crankshaft pulley bolt between head and washer and bolt threads with clean engine oil.
    
    CAUTION
    Do not use impact wrench to perform following step.
    
34. Install crankshaft pulley and tighten bolt using special tools to 181 ft lb (245 Nm).
35. Install dipstick/tube assembly.
36. Install upper cover. Tighten bolts to 9 ft lb (12 Nm).
37. Install cylinder head cover.
38. Install alternator bracket and alternator.
39. Install power steering pump belt and alternator belt. Upper bracket installation
    
    
40. Install upper bracket and tighten fasteners in proper numbered sequence.
41. Install stop.
42. Install battery and enter radio anti-theft code.

jack up on stands, remove LF wheel and water shield. disconnect battery, buy a crankshaft pulley holding tool from OTC, swing p.s. reservoir out of the way, remove both accesory belts, front motor mount, valve cover, dipstick and tube, crank pulley, timing belt cover, set engine at TDC #1 (align marks), remove nut on tensioner shaft to loosen both belts, remove the belts and tensioners (replace all), replace water pump NOW, install timing pulley, reinstall spring (use dipstick tube bolt to hold back the timing pulley with the slot in the bracket on the pulley until the belt is installed), install balance shaft belt, pulley and spring, once tensioned rotate engine once and retension by loosening the nut and retightening. Make sure the marks are still lined up, and reinstall everything. New valve cover gasket set with silicone in the corners. fill with coolant and bleed system once finished. it is a good idea to also change all the oil seals while you are in there.

All of your fan belts needs to be taken off because the timing belt is located beneath the crankshaft pulley. There is a possibility that you may need to lift the motor off its motor mounts to gain access to the timing belt. Remember, the timing belt can't be seen from the outside.

Crankshaft pulley (harmonic balancer) removal- disconnect neg battery cable, remove belts, it would be a good idea to soak the bolt w/ penetrating oil overnight, there is a special 'crankshaft pulley holding tool' available to secure the pulley while removing and installing the bolt. Some parts stores loan tools for free if u purchase parts from them, I don't know if this is available, but it would be worth checking out. Attach holding tool and remove bolt securing pulley. Carefully remove pulley from crankshaft, Do NOT pry off. Remove key from crankshaft sprocket,
Install: install key on crankshaft sprocket, slide pulley on, apply clean oil to bolt threads but NOT to washer contact surfaces, secure crankshaft w/ holding tool, tighten to 159 ft lbs (91-93 Accord), install belts, re-attach neg cable.