Please help, what are the torque specifications for Nissan UD40 FD46 engine? I need torque specifications for cylinder head, mains, big ends, flywheel and crank pulley nut.And also inlet and outlet valve clearances. Thank you.

https://www.google.com/search?q=2012+chevrolet+captiva+2.2+VCDi+diesel+cylinder+head+torque+specs

https://www.google.com/search?q=2012+chevrolet+captiva+2.2+VCDi+diesel+big+end+torque+specs

Not too much information on the 2.2 diesel. A service manual is the best idea.

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Here are the torque settings for a Ford Fiesta 1.4 2010 for the main bearings, head bolts, and big ends:
Main bearings

• Main bearing caps: 1st stage - 7 Nm, 2nd stage - 16 Nm
• Main bearing bolts: 45 Nm + 90°

Head bolts

• Cylinders 1-3: 2nd stage - 30 Nm + 90°, 3rd stage - 80 Nm + 180°
• Cylinder 4: 2nd stage - 25 Nm + 90°, 3rd stage - 60 Nm + 180°

Big ends

• Connecting rod cap nuts: 1st stage - 22 Nm, 2nd stage - 40 Nm + 90°

Please note that these are just the general torque settings. The exact torque settings may vary depending on the specific engine and vehicle. It is always best to consult your vehicle's service manual for the correct torque settings.
Here are some additional tips for tightening the torque settings:

• Use a torque wrench to ensure that the bolts are tightened to the correct torque.
• Tighten the bolts in a star pattern, working your way from the center out.
• Do not overtighten the bolts, as this can damage the engine.

https://www.pelicanparts.com/BMW/techarticles/BMW-3-Series-E46/104-ENGINE-Cylinder_Head_Bolt_Testing/104-ENGINE-Cylinder_Head_Bolt_Testing.htm

https://www.autozone.com/repairguides/BMW-X5-2000-05/Specifications/Torque-Specifications/_/P-0900c152801b2c86

https://www.google.com/search?q=diesel+engine+cylinder+head+torque+specifications&sa=X&hl=en&tbm=isch&source=iu&ictx=1&fir=kNVtXRlyYkOHuM%253A%252CYZYLPI-DBrnikM%252C_&vet=1&usg=AI4_-kTXWYiqvd-JLz4dq5hvokBF4q1Ymg&ved=2ahUKEwijgKWCuLHpAhVxlFwKHQ6QCPAQ9QEwAHoECAkQHQ#imgrc=kNVtXRlyYkOHuM:

main head bolts - 1st step-70NM, 2nd step-70NM, 3rd step-60-75 degrees turn angle, 4th step-60-75 degrees
make sure you use new bolts. The smaller head bolts 25NM. Mains 166Nm, big ends 1st step-30Nm, 2nd step-45-60 degrees turn angle

you can get guide from many sites.. i know few
error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches functioning, assemble, disassem bly, complete refurbish, repair, installation every single thing is covered
within seconds u can get the access and it's totally illustrative complete

Follow this link it should be whay your looking for
https://www.autozone.com/repairguides/Subaru-Car-1998-05/Specifications/Torque-Specifications/_/P-0996b43f8037a924

This link may have some of those torque specs. http://www.championbrands.com/aera-torquespecs.pdf

1. 29 nm
2. 59 nm
3. slacken off bolts
4. 29 nm
5. 50-55 degrees with angle torque gauge or 54-64nm

petrol engine alloy head 65lbs
main bearing caps 80lbs
big end bolts 40lbs

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.