Does the crank shaft torque bolt need to bereplaced when changing timing belt?

http://www.rlb.50megs.com/trktorque.html
You have a timing belt, not a chain

As you look at engine from timing belt side by where the drive shaft runs at back of engine around four inches back there is a small 10mm bolt that goes into the engine block undo this and that is where the pin goes don't forget that the crank pulley gear is free wheeling so make sure you use a new crank bolt and use correct torque setting

CHECK SEE IF CRANK SHAFT PULLEY BOLTS LOOSE.IF CRANKSHAFT PULLEY LONG BOLT TORQUE IS FOR 130 FT LBS FOR 1.8L ENGINE. IF YOU HAVE THESE ENGINES CRANKSHAFT BOLT TORQUE IS 174 - 181 FT LBS ENGINES ARE 3.0L 3.2L 3.5L 2.3L 2.5L IF CRANKSHAFT PULLEY BOLT IS TIGHT.THE CRANKSHAFT PULLEY ITSELF BROKEN NEED REPLACING.

Timing belt set-up for a 2000 Seat Inca 1.9 SDi

1. Align the crankshaft timing marks on the flywheel / gearbox


2. Remove the valve cover
3. Lock the camshaft


4. Fit the injection pump locking pin



5. Loosen the camshaft gearwheel bolt, 180 degrees. Use a wrench to counter-hold
6. Loosen the camshaft gearwheel while holding it in place



7. Fit the timing belt in the sequence as shown in the below figure: a - b - c - d - e - f - g



8. Fit the timing belt and camshaft gearwheel together
9. Turn the tensioner clockwise to align both marks



10. Tighten the large bolt on the tensioner to a torque of 20 Nm
11. Check for correct fit
12. Lock the camshaft. Tighten the camshaft gearwheel bolts: 45 Nm. Use a wrench to counter-hold
13. Remove helping tools
14. Turn the engine two rotations by hand
15. Repeat the procedure if required
16. Fit the vacuum pump
17. Refit the crankshaft pulley. Tighten torque: 20 Nm + 20 degrees
18. Fit the timing belt cover
19. Refit the valve cover
20. Fit the ancillary drive belt
21. Refit the inlet air manifold hoses
22. Check the injection timing

Torque settings:
Camshaft gearwheel: 45 Nm
Tensioner pulley: 20 Nm
Crankshaft pulley: 20 Nm + 20 degrees

The accessory belt, crankshaft balancer bolt to remove the balancer. You will need a high torque air impact wrench and a balancer puller.

Use air impact wrench with about 150 psi or more, or place power handle brace against chassis or lower suspension and turn over engine with starter but do not start engine, this will break torque on bolt then you can remove with ratchet handle

Disconnect the wire harness at the distributor.Remove the spark plug closest to the drivers side front tire. Place the palm of your hand over the valve covers empty spark plug hole and have a helper crank the motor over until air pressure pushes past your the palm of your hand. Next, look at the cam shaft wheel and note the direction that the arrow is pointing, the arrow should be pointing straight up IN RELATION TO THE ENGINE not the earth. If it is not, you will need to manually rotate the engine till the cam wheel is infact pointing straight up. Next, Jack up the front of the car and support it with jack stand and remove the front drivers side tire.Next, support the weight of the engine with a floor jack remove the motor mount closest to the drivers side tire To remove it you will need a deep 17mm socket on a heavy duty breaker bar. Next, loosen and remove the power steering belt and alternator belts. To loosen and remove the belts you will need a 10mm wrench and a 12mm wrench. And also a 14mm or 15mm wrench. Next, use a 19mm socket AND an air powered IMPACT wrench to remove the bolt holding on the crank shaft pulley. Next, remove the crankshaft pulley. Next, use a 10mm wrench and/or 10mm socket and remove the bolts holding the plastic engine side cover. Next, loosen the 14mm or 15mm bolt which secures the 2 belt tension wheels. Next, LOOSEN the 10mm bolt that is on the balance shaft tensioner. The balance shaft is the cogged wheel with a small timing mark dot on the side of the wheel. Next, loosen the 10mm bolt on the timing belt tensioner. It's obvious what wheel is the timing belt tensioner. Next, remove the 12mm bolt on the back side of the block (near the balance shaft) a little bit of oil will drip out, this 12mm bolt will allow a long bolt to be inserted into a recessed channel of the balance shaft. This recessed channel is needed to lock the balance shaft in place. A bolt from the air conditioner works great for locking the balance shaft in place. You're basically just pushing the bolt in a hole to keep the balance shaft from spinning. Next, remove both the balance shaft belt and timing belt. Then reverse the procedure to complete the new belt installation. EXTREMELY IMPORTANT!!!!!!!!! PLEASE NOTE, the oil pump wheel furthest to the left (closest to the radiator), has a timing mark on the flat face side of the wheel, that timing mark has to be pointing directly to the 9:o'clock position in relation to the engine. The cam wheel has an arrow on the side of one of the "spokes" ...make sure it is pointing straight up in relation to the engine...straight away from the crank shaft. Put the crank wheel on with the arrow pointing straight up to the center of the cam wheel.

Timing Belt, Sprockets & Front Cover Removal & Installation Timing belt To Remove:

1. Disconnect the negative battery cable.
2. Remove the exhaust side spark plugs, outer timing belt cover, and crankshaft pulley.
3. Turn the crankshaft until the number one piston is at top dead center (TDC). CAUTION
   The camshaft belt tensioner tool (303-097) can be damaged when trying to relieve belt tension if you attempt to remove the belt without first loosening both the timing belt tensioner adjusting bolt and the spring pivot bolt.
   
4. Loosen the timing belt spring pivot bolt, but do not remove it at this point in the procedure.
5. Loosen the adjusting bolt slowly and release the spring tension.
6. Turn the tensioner with the camshaft belt tensioner tool (303-097), against the spring pressure, clockwise to the farthest position.
7. While holding it in this position, tighten the adjusting bolt to hold the tensioner away from the belt.
8. Remove the timing belt.

To Install:

1. Be certain that on piston number one, the crankshaft is at TDC with the crankshaft keyway pointing straight up and the circle on the crankshaft sprocket lined up with the notch on the engine front cover.
2. Line up the timing marks.
3. Install the timing belt over the crankshaft sprocket going counterclockwise over the oil pump sprocket and over the camshaft sprocket.
4. Loosen the bolt allowing the tensioner pulley to press against the timing belt. NOTE: The timing belt tensioner should not be tightened or the belt tension will not be evenly distributed over the whole belt.
   
5. Turn the crankshaft two revolutions clockwise. Next, slowly bring the crank to the number one position firing position with the keyway on the crank facing up. The dot on the crankshaft gear is lined up with the notch on the front cover.
6. Check the timing mark alignment again. If necessary, repeat the procedure.
7. Tighten the bolts. Torque the pivot bolt to 30-40 ft-lb (40-55 Nm). Torque the adjustment/locking bolt to 26-33 ft-lb (35-45 Nm).
8. Install the crankshaft pulley and tighten the bolt. Torque to 93-121 ft-lb (125-165 Nm).
9. Install the outer timing belt cover and tighten the bolt. Torque to 70-106 in-lb (8-12 Nm).
10. Install the exhaust side spark plugs.

Sprockets To Remove:

1. Remove the timing belt.
2. Install the camshaft sprocket holding/removing tool (303-098) onto the sprocket.
3. Remove the camshaft sprocket.

To Install:

1. Place the key and camshaft sprocket on the shaft.
2. Install the camshaft sprocket holding/removing tool (303-098) onto the camshaft sprocket and tighten the bolt. Torque to 52-70 ft-lb (70-95 Nm).
3. Remove the tool then install the timing belt.

Outer Cover To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Disconnect the negative battery cable.
3. Remove the fan shroud.
4. Loosen the bolts on the water pump pulley, but do not remove them at this point in the procedure.
5. Remove the drive belt, the water pump pulley, and the fan and clutch assembly.
6. Recover the refrigerant from the A/C system.
7. Disconnect the A/C wiring connector.
8. Remove the A/C compressor from the mounting bracket then remove the A/C mounting bracket with the power steering pump still attached.
9. Remove the outer timing belt cover.

To Install:

1. Install the outer timing belt cover. Torque to 70-106 in-lb (8-12 Nm).
2. Install the A/C mounting bracket with the power steering pump still attached. Torque the M10 bolts and stud to 35 ft-lb (48 Nm) and torque the M8 bolt to 18 ft-lb (25 Nm).
3. Install the A/C compressor to the mounting bracket. Torque to 16-20 ft-lb (21-28 Nm).
4. Connect the A/C wiring connector.
5. Refill the refrigerant into the A/C system.
6. Install the fan and clutch assembly, the water pump pulley, and the drive belt.
7. Tighten the bolts on the water pump pulley. Torque to 13-17 ft-lb (17-23 Nm).
8. Install the fan shroud. Torque to 54-70 in-lb (6-8 Nm).
9. Connect the negative battery cable.
10. Start the engine. Check for leaks and repair as necessary.

Inner Cover To Remove:

1. Loosen oil pump sprocket bolt.
2. Remove timing belt, timing belt tensioner, oil pump sprocket, and crankshaft pulley.
3. Remove inner timing belt cover.

To Install:

1. Install inner timing belt cover.
2. Install crankshaft pulley. Torque to 93-121 ft-lb (125-165 Nm).
3. Install the oil pump sprocket.
4. Install the timing belt tensioner. Torque the pivot bolt to 30-40 ft-lb (40-55 Nm). Torque the adjustment/locking bolt to 26-33 ft-lb (35-45 Nm).
5. Install the timing belt.
6. Tighten the oil pump sprocket bolt. Torque to 30-40 ft-lb (40-55 Nm).
7. Torque the camshaft bolt to 52-70 ft-lb (70-95 Nm).

timing belt marks are as follows= crank at TDC marks are at 10 oclock the both cams marks at TDC are at 12 .oclock position marks are clear if you look theoil pump gear also driven by belt marks are approx 11 oclock position also marked thebalance shaft gear/cog must also be set to 9 oclock position when the b/shaft belt is fitted to hold theoil pump sprocket in its correct position remove the small screw/blank plug on side of block then use an 8 mm posi screwdriver insert into hole it should travel approx 60 mm to engage if not rotate pump gear 360 degree till it does locate fit main belt from crank anti clockwise to cams then tension same with b/shaft tensioner make sure you torque all bolts correctly any more info req'd come back hope this helps ?

• first of all you are probably going to need a torque wrench for the crank shaft pulley bolt it has 225lbs.of torque or more.I just did one on my 1991 honda accord dx .you have to take off a/c belt ,alternator etc. on the crank pulley.(I took it to a shop and they heated the 3/4 in. bolt and used torque wrench. I broke a half inch breaker bar trying to get it offf) next use puller to take off crankshaft pulley.support motor and remove motor mount bracket. take off upper and lower timing belt covers.take off timing belt and other belt using the tensioners.take off and replace water pump CHECK ALL TIMING MARKS with #1 piston@TDC. There are about 6.