I need to know the tightening sequence of the 4d56 diesel engine cylinder head bolts. help me please

The torque sequence and specifications for the cylinder head bolts on a 1998 Ford Ranger 2.5L gasoline engine are as follows:

1. Tighten all bolts in the sequence shown below to 22 ft-lbs (30 Nm).8 4 1 5 \ ' / ' / 7 3 2 6
2. Tighten all bolts in the same sequence to 45 ft-lbs (61 Nm).
3. Tighten all bolts in the same sequence an additional 90 degrees (1/4 turn).
4. Tighten all bolts in the same sequence an additional 90 degrees (1/4 turn) again.

Ensure that you follow the sequence and torque values precisely to prevent uneven tightening and potential head gasket issues. It's also crucial to use a good quality torque wrench for accuracy. Please note that torque specifications may vary slightly depending on the specific engine build, so it's always a good idea to consult your vehicle's service manual for the most accurate information for your particular engine.

most those bolts are TTY and are not reused.
and are set by angle. not torque.
I guess you never worked modern engines, or read the service manual first for all the steps in order ?
2.0L gas?
2.0. is not any suzuki engine name at all
and there are four(4) 2.0L engine used, 2 gas and 2 diesel
we can not guess engines, is it a USA car or not? I only answer for USA.
2.0 DDIS or AWD version < my guess is SuZ J20b?
2.0L vvt and vvt-i

SM< words , USA 2.0L gas VVT ,, (2.0L VIN 5, 6th digit?)

Before installing the cylinder head to the cylinder block, turn the crankshaft and position key within the specified range (30-90°) in the counterclockwise direction from the top.
Turn the crankshaft and position key within the specified range/,,
Crank key not UP, but before UP, 30 to 90 before
then
Install the cylinder head to the cylinder block.(do not lose 23 dowel pins)

1. Step 1: Apply engine oil to the cylinder head No. 1 bolt threads.
2. Step 2: Tighten the cylinder head No. 1 bolts to 15 ft. lbs. (20 Nm), evenly and gradually, in sequence.NOTE
   Use a 12-point socket wrench to tighten the cylinder head No. 1 bolts.
3. Step 3: Tighten No. 1 cylinder head bolts to 30 ft. lbs. (40 Nm).
4. Step 4: Tighten No. 1 cylinder head bolts an additional 60°.
5. Step 5: Tighten No. 1 cylinder head bolts an additional 80°.
6. Step 6: Tighten No. 2 cylinder head bolt to 19 ft. lbs. (25 Nm).
   Cylinder head tightening sequence

I never build engines off internet rumor , even mine
I buy the service manual based of VIN form Suzuki,

1. Clean the cylinder gasket surfaces on the engine block.
2. Inspect the dowel pins (cylinder head locator) for proper installation.
3. Clean the cylinder head gasket surfaces on the cylinder head.
4. Place the NEW cylinder head gasket in position over the dowel pins (cylinder head locator).The cylinder head gasket is not directional and may be installed using either side facing the engine block.
5. Install the cylinder head to the engine block. Guide the cylinder head carefully into place over the dowel pins and the cylinder head gasket.
   
Install the cylinder head bolts.

6. Tighten the bolts in the sequence shown in the image below on the first pass to 30 [n-m] (22 lb ft).


7. Use a torque angle meter in order to tighten the cylinder head bolts in sequence on the final pass. Tighten:
   
   • Tighten the long bolts (1, 2, 5, 6, 9, 10, and 13) on the final pass in sequence to 75 degrees.
   • Tighten the medium bolts (14 and 17) on the final pass in sequence to 65 degrees.
   • Tighten the short bolts (3, 4, 7, 8, 11, 12, 15, and 16) on the final pass in sequence to 55 degrees.


8. Measure the NEW spark plugs for the proper gap.Adjust the spark plug gap if necessary.
   Specification:
   Spark plug gap to 1.52 mm (0.060 in)
9. Install the NEW spark plugs. Tighten:
   
   • Tighten the spark plugs for a USED cylinder head to 15 [n-m] (11 lb ft).
   • Tighten the spark plugs for the initial installation of a NEW cylinder head to 30 [n-m] (22 lb ft).


10. If reusing the engine coolant temperature (ECT) gauge sensor, apply sealant GM P/N 12346004 to the threads of the ECT gauge sensor.
11. Install the ECT gauge sensor.Tighten:
    Tighten the ECT gauge sensor to 20 [n-m] (15 lb ft).
    

The torque settings for the cylinder head on a 2003 Ford Ranger 2.5 turbo diesel WLT engine are as follows:

• Main cap bolts: 70 Nm (52 ft-lbs)
• Head bolts: 65 Nm (48 ft-lbs)
• Rocker arm shaft nuts: 25 Nm (18 ft-lbs)

It is important to note that these torque values are for the cylinder head bolts and main cap bolts only. Other fasteners on the engine, such as the oil pan bolts, may have different torque requirements.
It is also important to use a torque wrench and follow the proper tightening sequence when installing the cylinder head. Consult the service manual for your vehicle or a repair manual for the specific tightening sequence and additional torque specifications.
I hope this information is helpful. If you have any further questions or need additional assistance, don't hesitate to ask.

Hi Eduardo:
Check this information (click over pics for zoom)...



Fig. 20: Exploded view of the cylinder head assembly-VG30E engine




Fig. 15: Cylinder head loosening sequence-VG30i and VG30E engines




Fig. 17: Cylinder head torque sequence-VG30i and VG30E engines


Install the cylinder head with a new gasket. Apply clean engine oil to the bolt threads and seats, then install the bolts with washers (beveled edges up) in the correct position. Note that bolts 4, 5, 12 and 13 measure 5.00 in. (127mm), and are longer than the others. The other bolts are 4.17 in. (106mm) long.

Tighten the bolts in the proper sequence, in the following stages:
Tighten all bolts, in order, to 22 ft. lbs. (29 Nm).
Tighten all bolts, in order, to 43 ft. lbs. (59 Nm).
Loosen all bolts completely.
Tighten all bolts, in order, to 22 ft. lbs. (29 Nm).
Tighten all bolts, in order, to 40-47 ft. lbs. (54-64 Nm). Or, if you have an angle torque wrench available, tighten them an additional 60-65 degrees.


Hope this helps; remember to rate this answer. Good luck.

Fig. 7: Location of the cylinder head retaining bolt holes

Fig. 13: Cylinder head bolt torque sequence for 2.2L engines

Tighten bolts in sequence, tighten the long bolts to 46 ft. lbs. (63 Nm) plue 90 degrees. Tighten the short bolts to 43 ft. lbs. (58 Nm) plue 90 degrees.

Hope helps.

To install:

Fig. Cylinder head bolt torque sequence-3.8L engine

1. Install the new cylinder head gasket with the arrow pointing to the front of the engine.
2. Install the cylinder head.
3. Install NEW cylinder head bolts. Torque the bolts in sequence, as follows:
   1. Step 1: 37 ft. lbs. (50 Nm).
   2. Step 2: Plus 120 degree turn.

To install:

Fig. Tighten the cylinder head bolts using the following sequence-31L and 3.4L engines

1. Install the cylinder head with a new gasket.
2. Apply thread sealer to the head bolts.
3. Tighten the cylinder head bolts to 37 ft. lbs. (50 Nm) plus an additional 90 degree turn.

Cylinder Head REMOVAL & INSTALLATION 2.3L Engine

1. Properly relieve the fuel system pressure.
2. Disconnect the negative battery cable, then drain cooling system into a suitable container.
3. Detach the heater inlet and throttle body heater hoses from water outlet. If accessible at this time, disconnect the upper radiator hose from the water outlet.
4. Remove the exhaust manifold. For details, please refer to the procedure located in this section.
5. Remove the intake (camshaft housing for SOHC) and exhaust (DOHC only) camshaft housings.
6. Unfasten the oil fill tube bolt/screw then remove the oil fill cap and level indicator assembly. Pull the oil fill tube upward to unseat from block.
7. Label and disengage the injector harness electrical connector.
8. Detach the throttle body-to-air intake duct.
9. Tag and disconnect the power brake vacuum hose from the throttle body.
10. Remove the throttle cable bracket.
11. Remove the throttle body from the intake manifold with the electrical harness and throttle cable attached and position the assembly aside.
12. Tag and disconnect the MAP sensor vacuum hose from the intake manifold, then remove the intake manifold brace.
13. Detach the electrical connectors from the MAP sensor, IAT sensor and the EVAP canister purge solenoid.
14. If not already done, detach the upper (inlet) radiator hose from the water outlet.
15. Disengage the coolant temperature sensor connector(s).
16. Unfasten the cylinder head bolts in reverse order of the installation sequence shown in the accompanying figures.
17. Lift the cylinder head from the engine block. Remove and discard the gasket. Inspect the oil flow check valve for freedom of movement.
18. Using a suitable solvent, thoroughly clean and dry all bolts, bolt holes and mating surfaces. Inspect the head bolts for any damage and replace, if necessary. If using a scraper to clean the old gasket material from the mating surfaces, use only a plastic or wood one, NOT a metal scraper. Do NOT allow any debris to fall into the engine! To install:
    
19. Place a new cylinder head gasket on the cylinder block, then carefully position the cylinder head in place.
20. Sparingly coat the head bolt threads with clean engine oil, then allow the oil to drain off before installing.
21. On 1988-89 engines, install and tighten the cylinder head bolts, in sequence, as follows:
    • Step 1 - Tighten all head bolts in sequence to 26 ft. lbs. (35 Nm)
    • Step 2 - Using a torque angle meter, tighten the short bolts an additional 80°and the long bolts an additional 90°in sequence Fig. 5: Cylinder head bolt tightening sequence - 1988-89 2.3L engine
      
22. On 1990-91 engines, tighten the cylinder head bolts, in sequence, as follows:
    • Step 1 - Tighten all head bolts in sequence to 26 ft. lbs. (35 Nm)
    • Step 2 - Using a torque angle meter, tighten the short bolts an additional 100°and the long bolts an additional 110°in sequence Fig. 6: Cylinder head bolt tightening sequence - 1990-91 2.3L engine
      
23. On 1992 engines, tighten the cylinder head bolts, in sequence, as follows:
    • Step 1 - Tighten, in sequence, head bolts 1-6 to 26 ft. lbs. (35 Nm), 7-8 to 15 ft. lbs. (20 Nm) and 9-10 to 22 ft. lbs. (30 Nm).
    • Step 2 - Tighten all head bolts, in sequence, an additional 90°using J 36660 or equivalent
    • Step 3 - In sequence, loosen each bolt one turn, then immediately re-tighten to the specified torque
    • Step 4 - After completing step 3 on all 10 bolts, tighten each bolt, in sequence, an additional 90° Fig. 7: Cylinder head bolt tightening sequence - 1992 2.3L engine
      
24. On 1993-95 vehicles, tighten the cylinder head bolts to the specifications shown in the accompanying figures. Fig. 8: Cylinder head bolt tightening sequence and specifications - 1993 2.3L engine
    Fig. 9: Cylinder head bolt tightening sequence and specifications - 1994-95 2.3L engine
    
25. Engage the coolant temperature sensor electrical connector(s).
26. Connect the upper radiator hose to the water outlet.
27. Install the intake manifold bracket.
28. Attach the following electrical connections: MAP sensor, IAT sensor, and the purge solenoid.
29. Using a new gasket, install the throttle body to the intake manifold.
30. Install the accelerator control cable bracket.
31. Connect the throttle body-to-air intake duct.
32. Install the oil fill tube and level indicator.
33. Install the camshaft housing(s).
34. Install the exhaust manifold. For details, please refer to the procedure located in this section.
35. Connect the heater inlet and throttle body heater hoses to the water outlet.
36. Fill all fluids to their proper levels.
37. Connect the battery cable, start the engine and check for leaks.

1.8 liter..NOTE: Lubricate the cylinder head bolts using the specified engine oil.

Install the cylinder head bolts. Tighten the cylinder head bolts in 2 or 3 steps in the sequence shown to 76-81 Nm (56-60 lb-ft).


1.9 liter
Apply a light coating of engine oil to the threads of the new cylinder head bolts. Install the new cylinder head bolts to the cylinder head. Following the sequence shown below, tighten the cylinder head bolts to 40-60 Nm (30-44 lb-ft). Loosen all cylinder head bolts approximately two turns, then retighten the cylinder head bolts to 60 Nm (44 lb-ft) following the sequence shown. After tightening, turn all bolts 90 degrees, in the same sequence. Complete bolt tightening by turning them an additional 90 degrees, in the same sequence.

Fig. Cylinder head torque sequence-4.5L and 4.9L engines (not Nothstar, this is 4.6L)

1. Tighten cylinder head bolts, in sequence, to 38 ft. lbs. (50 Nm).
2. Tighten cylinder head bolts, in sequence, to 68 ft. lbs. (90 Nm).
3. Tighten No. 1, 3 and 4 cylinder head bolts to 90 ft. lbs. (120 Nm).

Hope this helps (remember rated).