I have a 2002 hyundai sonata GLS V6 2.7L the cams move a little bit and l set them back. how do l know for sure timing is correct before putting everything back on the engine, replaced timing belt.

SOURCE: 2002 Hyundai Sonata have a timing belt or chain

timing belt and yes the belt and tensioner needs changed every 60k and if its a 4cyl. the balance belt also needs replaced

SOURCE: 1997 nissan pathfinder timing off.

The cam sprockets should have marks on them (dimples) that should align with marks on the rear timing cover. There should also be a similar dimple on the crankshaft timing sprocket. These will align with their respective marks when the engine is at TDC. The alignment marks are in the following locations as you look at the front of the engine: RH cam sprocket at approximately 11:00, LH cam sprocket at approx 1:00, Crankshaft timing sprocket at approx 4:00 or 5:00. IF you can't find the marks on the cover, put the marks on the sprockets in those approximate positions and set the belt by using a belt tooth count between the marks. Cam to cam should be 40 teeth between the cam marks. Between the LH sprocket and the crank mark should be 43 teeth. You can check TDC by removing your number 1 cylinder spark plug and carefully inserting a long screwdriver and watching the rise/fall as you hand crank the crankshaft into position (which is much easier with the plugs out)

SOURCE: How to replace a serpentine belt for a hyundai

try joining autozone.com for free and they have all your diagram needs for free

SOURCE: trouble replacing timing belt ... setting timing

Sorry for the severe delay.
I am personally going back to answer your unanswered question.
I do not know if you still need the answer, but I am going to answer it in case you still do.

Click on the following direct Link. It has the Timing Belt Diagrams with Marks for the Camshaft and Crankshaft that you will need. It also has numerous other helpful diagrams for use.

Again my apologies...
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/1996/make/hyundai/model/sonata/1996_hyundai_sonata_timing_belt_diagram_marks.htm

ZJ Limited

• 17989 Answers
• Posted on Jun 25, 2010

SOURCE: How do I replace the alternator in a 2002 hyundai

For 2002 Hyundai Sonata 2.7L MFI DOHC 6cyl check this procedure...
Alternator - Removal

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove or disconnect the following:
   Negative battery cable Radiator mounting bolts, 1.6L only Alternator drive belt Alternator wiring harness connectors Alternator. It may be necessary to raise the radiator
   
   
   Fig. Exploded view of the alternator-XG 300
   

1. Before servicing the vehicle, refer to the Precautions section.
2. Remove or disconnect the following:
   Negative battery cable Alternator drive belt Alternator wiring harness connectors Alternator. It may be necessary to raise the radiator

1. Before servicing the vehicle, refer to the Precautions section.
2. Remove or disconnect the following:
   Negative battery cable Radiator mounting bolts, 1.6L only Alternator drive belt Alternator wiring harness connectors Alternator. It may be necessary to raise the radiator
   
3. Install or connect the following:
   Alternator and reposition the radiator, if raised Alternator wiring harness connectors Alternator drive belt
4. Adjust the alternator belt and torque the bolts to the following specifications:
   1. Accent: Pivot bolt to 14-18 ft. lbs. (19-25 Nm) and adjustment bolt to 14-20 ft. lbs. (19-28 Nm).
   2. 2.0L and 2.5L Sonata, Elantra and Tiburon: Pivot bolt to 14-18 ft. lbs. (19-25 Nm) and adjustment bolt to 105-132 inch lbs. (12-15 Nm).
   3. 2.4L Sonata: Pivot bolt to 26-41 ft. lbs. (34-54 Nm) and the adjustment bolt to 14-18 ft. lbs. (19-25 Nm).
   4. 3.0L Sonata and XG 300: Pivot bolt to 14-18 ft. lbs. (19-25 Nm) and adjustment bolt to 11-16 ft. lbs. (15-22 Nm).
5. Install the radiator mounting bolts, if removed.
6. Connect the negative battery cable.