2000 audi a4 2.8L engine. How do I remove the crankshaft gear?

TIMING BELT
Removal
Disconnect negative battery cable. Disconnect intake air temperature sensor connector from intake air duct. Disconnect the air intake tube from the throttle body. Disconnect the breather tube from the valve cover. Remove resonator from throttle body. Remove air filter housing.
Raise and support the vehicle. Remove right front wheel. Remove right front splash shield from wheelwell. Remove serpentine accessory drive belt.
Remove crankshaft pulley bolts. It is NOT necessary to remove crankshaft sprocket center bolt. Remove crankshaft pulley. Lower vehicle.
Support engine assembly from above with Support Fixture (J-28467-B). Remove engine mount bracket from timing belt end of engine.Remove power steering hose clamp bolt, and position hose away from timing belt cover. Remove front timing belt cover. Using crankshaft center bolt, rotate crankshaft one full turn clockwise (as viewed from timing belt end of engine).
Align mark on crankshaft sprocket with notch at bottom of rear timing belt cover. See Fig. 4 . Align camshaft sprocket timing marks with notches on valve cover. See Fig. 5 .
CAUTION: Engine damage could result if camshaft sprockets are not properly aligned with notches on valve cover.
Loosen the automatic tensioner bolt. Use an Allen wrench to rotate tensioner and relieve tension on timing belt. Remove timing belt.
Fig. 4: Aligning Crankshaft Sprocket Timing Mark
Courtesy of DAEWOO MOTOR AMERICA, INC.

Fig. 5: Aligning Camshaft Sprocket Timing Marks
Courtesy of DAEWOO MOTOR AMERICA, INC.

Installation
Ensure crankshaft and camshaft timing marks are still aligned. Install the timing belt. See Fig. 7 . Turn the timing belt tensioner counterclockwise to tension the timing belt. Turn tensioner until the pointer aligns with the notch on the rear timing belt cover. Tighten automatic tensioner bolt to specification. See TORQUE SPECIFICATIONS .
Using crankshaft center bolt, turn crankshaft clockwise (as viewed from timing belt end of engine) 2 full revolutions. Ensure timing belt tensioner pointer is still aligned with notch.
If timing belt tensioner is correctly aligned, install timing belt cover. See Fig. 3 . Install the engine mount bracket on the timing belt end of engine. Position power steering hose in place, and install clamp bolt. Install crankshaft pulley. Install serpentine accessory drive belt.
Install right front splash shield. Install right front wheel. Install air filter housing and resonator. Connect air intake temperature sensor connector. Connect negative battery cable.
Fig. 7: Identifying Timing Belt Routing
Courtesy of DAEWOO MOTOR AMERICA, INC.

here

http://www.2carpros.com/questions/daewoo-leganza-2000-daewoo-leganza-timing-marks

i dont have a more detailed picture of setting the timing marks for the belt so i hope this helps

There are no alignment marks on the camshafts, you must use the camshaft holder tool T40005 in conjunction with the crankshaft holder tool 3242 to properly align the camshaft and crankshaft

CAUTION: Incorrect removal or installation of the timing belt can result in damage to internal engine components.

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.
   

1989–92 VEHICLES

1. Disconnect the negative battery cable.
2. Remove the serpentine belt and timing belt cover.
3. Loosen the water pump bolts and release tension with tool J–33039 or equivalent.
4. Raise and support the vehicle safely.
5. Remove the crankshaft pulley.
6. Carefully lower the vehicle, then remove the timing belt. Fig. 11: Exploded view of the timing belt assembly — 1989–92 OHC engines
   To install:
   
7. Turn the crankshaft and the camshaft gears clockwise to align the timing marks on the gears with the timing marks on the rear cover.
8. Install the timing belt, making sure the portion between the camshaft gear and crankcase gear is in tension.
9. Using tool J–33039 or equivalent, turn the water pump eccentric clockwise until the tensioner contacts the high torque stop. Tighten the water pump screws slightly.
10. Turn the engine by the crankshaft gear bolt 720°to fully seat the belt into the gear teeth.
11. Turn the water pump eccentric counterclockwise until the hole in the tensioner arm is aligned with the hole in the base.
12. Tighten the water pump screws to 18 ft. lbs. (24 Nm), while checking that the tensioner holes remain as adjusted in the prior step.
13. Install the crankshaft pulley, timing belt cover and the serpentine drive belt.

1993–94 VEHICLES

1. Disconnect the negative battery cable, then partially drain and recover the cooling system.
2. Remove the coolant recovery reservoir.
3. If equipped, remove the A/C belt.
4. Remove the serpentine belt.
5. Disconnect the evaporative emission pipe assembly.
6. Remove the crankshaft pulley assembly.
7. As outlined earlier, remove the timing belt front cover.
8. Align the marks on the crankshaft sprocket with the marks on the rear timing belt cover by rotating the crankshaft.
9. Loosen the water pump retaining bolts, and release the tension with tool J 33039-A or equivalent.
10. Carefully lower the vehicle, then remove the timing belt. Fig. 12: Timing belt installation and tightening specifications — 1993–94 2.0L OHC engines
    To install:
    
11. Turn the crankshaft and camshaft gears clockwise to align the timing marks on the gears with the timing marks on the rear cover.
12. Install the timing belt, making sure that the portion between the camshaft gear and crankshaft gear is in tension.
13. Using tool J 33039-A, or equivalent adjustment tool, turn the coolant pump eccentric clockwise until the tensioner arm contacts the high torque stop. Tighten the water pump screws slightly.
14. Turn the engine by the crankshaft gear bolt 720°clockwise to fully seat the belt into the gear teeth.
15. Turn the coolant pump eccentric counter clockwise until the hole in the tensioner arm is aligned with the hole in the base. This must be done with the engine at room temperature, approximately 68°F (20°C).
16. Tighten the water pump screws while checking that the tensioner holes remain as adjusted as in step 15.
17. As outlined earlier, install the timing belt cover.
18. Install the crankshaft pulley.
19. Connect the evaporative emission pipe assembly.
20. Install the serpentine drive belt and the A/C belt (if equipped).
21. Install the coolant recovery reservoir.
22. Properly fill the cooling system, then connect the negative battery cable.

To align both sets of timing marks, turn engine crankshaft to the right with belt on cam and crank. Once you have done this the crankshaft alignment mark (on front of crankshaft gear) will line up with mark to the rear of gear on engine block.The two cam gear timing marks should be alines across from one another. The right cam gear is the intake side and the left side is the exhaust side. After removing the belt turn the exhaust cam down 1/2 notch. Timing mark on exhaust 1/2 notch down from the intake side. Install new belt and recheck everything to make sure it's all correct. Hope this will help you.

rotate crankshaft in a clockwise direction until both timing marks are aligned together on both camshaft gears and the crankshaft timing mark aligns with mark on the block just behind the crankshaft gear. you may need to rotate the crankshaft gear several times before you can get all the timing marks to align. once you have done this then insert a allen wrench in the hole on the belt tensioner and a small drill bit or a small allen wrench in the smaller hole. take the largr allen wrench and apply pressure counterclockwise until the small drill bit or allen wrench slides into locking hole to hold the belt tensioner in place. install belt and release the tensioner. (note: before starting work on engine remove the negative cable from battery).

hi, here is a guide i have come across on this site written by another expert it should be the one for your engine but always double check.

If you are unsure what you are doing then please go out and buy a haines workshop manual as these tell you every detail you need to know so that would be your best solution.

Please dont do this work if your unsure what you are doing as you could damage the engine beyond repair so you have been warned;

it covers single cam and if you scroll down it shows double cam ok

Sep 14, 2009 - VW Passat & Audi A4 1990-2000 Repair Guide
Timing Belt - REMOVAL & INSTALLATION

2.8L SOHC (AFC) V6 Engine

1. Note the radio security code and disconnect the negative battery cable.
2. Place the (hood) lock carrier in the service position. For additional information, please refer to the following topic(s): Body And Trim, Service Position, Front Bumper, Hood Lock Carrier.
3. Remove the engine accessory drive belt. For additional information, please refer to the following topic(s): General Information And Maintenance, Routing Maintenance And Tune-up.
4. Turn the engine by hand to Top Dead Center (TDC) on the firing stroke for cylinder No. 1.

NOTE The large holes in the camshaft sprocket lock plates should be on the inside facing one another.

1. Remove the Crankshaft Position (CKP) sensor from the lower left side of the engine block. Make sure the engine is at TDC and install the threaded crankshaft holding pin Tool No. 3242 and lightly tighten.
2. Remove the upper timing belt covers, the crankshaft vibration damper and then the lower timing belt cover.
3. Loosen the camshaft sprocket bolts slightly and use a suitable pulley to release the sprockets from the tapered ends of the camshafts.
4. Loosen the tensioner roller and remove the drive belt.

To install :

1. Install the timing belt over the sprockets, then the idler rollers and lastly over the tensioner.
2. Install camshaft alignment tool holder Tool No. 3243 into the camshaft alignment flanges.
3. Check and adjust the cam belt tension such that the upper left portion of the belt between the tensioner and the left cam gear can just be twisted 90° ( 1 / 4 turn).
4. Tighten the cam belt tensioning roller to 33 ft. lbs. (45 Nm), and the camshaft sprocket bolts.
5. The balance of the installation is in reverse order of removal.

2.8L DOHC 5V (AHA) V6 Engine

1. Note the radio security code and disconnect the negative battery cable.
2. Place the (hood) lock carrier in the service position. For additional information, please refer to the following topic(s): Body And Trim, Service Position, Front Bumper, Hood Lock Carrier.
3. Remove the engine accessory drive belt. For additional information, please refer to the following topic(s): General Information And Maintenance, Routing Maintenance And Tune-up.
4. Turn the engine by hand to Top Dead Center (TDC) on the firing stroke for cylinder No. 1.

NOTE The large holes in the camshaft sprocket lock plates should be on the inside facing one another.

1. On the cylinder block near the crankshaft, remove the sealing plug from the lower left side of the engine block. Make sure the engine is at TDC and install the threaded crankshaft holding pin Tool No. 3242 and lightly tighten.
2. Remove the upper timing belt covers, the crankshaft vibration damper and then the lower timing belt cover.
3. Loosen the camshaft sprocket bolts slightly and use a suitable pulley to release the sprockets from the tapered ends of the camshafts.
4. Using a 8mm Allen® wrench, rotate the timing belt tensioner roller clockwise until the tensioner is compressed; then, insert a 2mm spring pin through the tensioner housing and tensioner plunger to secure it in place. When the plunger is secure, release the wrench tension.
5. Remove the damper-to-crankshaft bolts and the damper.

NOTE It is not necessary to remove the center bolt when removing the crankshaft damper.

1. Remove the serpentine belt idler and the crankshaft damper guard.
2. Mark the running direction of the timing belt and remove it from the pulleys.

Fig. Crankshaft pulley alignment location for TDC-Audi 2.8L V6 engines




Fig. Left camshaft sprocket alignment position for TDC; right camshaft position is similar-Audi 2.8L V6 engines




Fig. View of crankshaft holding tool installed-Audi 2.8L V6 engines




Fig. View of camshaft locator bar installed-Audi 2.8L V6 engines


To install:

1. Make sure that the camshaft pulleys and the crankshaft pulley are in alignment with TDC of the No. 1 cylinder's compression stroke.
2. Install the timing belt; make sure the timing belt is installed in the correct running direction from which it was removed.
3. Using a 8mm Allen® wrench, rotate the timing belt tensioner roller clockwise until the tensioner is compressed; then, remove the 2mm spring pin from the tensioner housing. Slowly, release the tensioner spring pressure to put pressure on the timing belt.
4. Install the crankshaft damper guard and the serpentine belt idler pulley; torque the idler pulley bolts to 33 ft. lbs. (45 Nm).
5. Install the crankshaft damper and torque the damper-to-crankshaft bolts to 15 ft. lbs. If the damper-to-crankshaft center bolt was removed, torque it to 147 ft. lbs. (200 Nm) plus 180° 1 / 2 turn).
6. Remove the Crankshaft Holder tool No. 3242 and install the sealing plug.
7. Replace the remaining components by reversing the removal procedures.
8. Refill the cooling system and the automatic transaxle. Connect the electrical connectors. Install the negative battery cable last.
9. Test drive the vehicle.

Timing belt needs to be replaced every 100000 km at the most . Do you know when it was replaced last ?
Did they remove the front pulley (The one on the crankshaft)?
The Timing belt and AUX belts are not related to the sump but they are related to the crankshaft pulley , Depending on the type of repair carried out they may have removed the pulley in order to replace the crankshaft front oil seal.If I was replacing a crankshaft oilseal due to oil leaking I would have fitted a new Timing belt as well as Tensioner , Idler/s , Water pump (if driven by timing belt) as well as the AUX belts as Oil can damage rubber .
Hope this makes sense to you ?
Looking forward to your reply
Regards
George

Timing Belt
Removal
1. Disconnect battery ground cable.
2. Remove air cleaner assembly.
3. Remove radiator upper fan shroud from radiator.
4. Move drive belt tensioner to loose side using wrench
then remove drive belt.
850RW001
Legend
(1) Crankshaft Pulley
(2) Cooling Fan Pulley
(3) Tensioner
(4) Generator
(5) Air Conditioner Compressor
(6) Power Steering Oil Pump
(7) Drive Belt
5. Remove cooling fan assembly four nuts, then the
cooling fan assembly.
6. Remove cooling fan drive pulley assembly.
7. Remove idle pulley assembly.
8. Remove serpentine belt tensioner assembly.
9. Remove power steering pump assembly.
10.Remove crankshaft pulley assembly using
5–8840–0133–0 crankshaft holder, hold crankshaft
pulley remove center bolt, then the pulley.
11. Remove right side timing belt cover then left side
timing belt cover.
12. Remove lower timing belt cover
13. Remove pusher.
CAUTION: The pusher prevents air from entering
the oil chamber. Its rod must always be facing
upward.
014RW011
Legend
(1) Up Side
(2) Down Side
(3) Direction For Installation
(4) Locking Pin
14. Remove timing belt.
CAUTION:
1. Do not bend or twist the belt, otherwise its core
could be damaged. The belt should not be bent at
a radius less than 30 mm.
2. Do not allow oil or other chemical substances to
come in contact with the belt. They will shorten
the life.
3. Do not attempt to pry or stretch the belt with a
screw driver or any other tool during installation.
4. Store timing belt in a cool and dark place. Never
expose the belt direct sunlight or heat.
6A–30 ENGINE MECHANICAL
Installation
NOTE: For correct belt installation, the letter on the belt
must be able to be read as viewed from the front of the
vehicle.
014RY00042
Legend
(1) Crankshaft Timing Pulley
(2) RH Bank Camshaft Drive Gear Pulley
(3) Water Pump Pulley
(4) Idle Pulley
(5) LH Bank Camshaft Drive Gear Pulley
(6) Tension Pulley
014RY00043
Legend
(7) Alignment Mark on Oil Pump.
(8) Alignment Mark on Timing Belt
(9) Alignment Mark (notch) on Crankshaft Timing
Pulley.
(10) Alignment Mark (groove) on Crankshaft Timing
Pulley.
014RW006
Legend
(1) Timing Belt
(2) Engine Rotation Direction
(3) Cylinder Head Side
1. Install timing belt.
1. Align the mark (notch) of crankshaft timing pulley
(2) with mark on oil pump (1).
Align the mark (groove) on the crankshaft timing
pulley (3) with alignment mark (white dots line) on
the timing belt (4).
NOTE: When timing marks are aligned, No.2 piston will
be on Top Dead Center.
014RW003
Legend
(1) Alignment Mark on Oil Pump
(2) Groove on Crankshaft Timing Pulley
(3) Alignment Mark on Crankshaft Timing Pulley
(4) Alignment Mark on Timing Belt
ENGINE MECHANICAL 6A–31
2. Align the alignment mark on the RH bank
camshaft drive gear pulley (2) to the alignment
mark of the cylinder head cover RH (3).
3. Align the alignment mark (white line) on the timing
belt (1) with alignment mark on the RH bank
camshaft drive gear pulley (2) (on the left side as
viewed from the front of the vehicle) and put the
timing belt on the camshaft drive gear pulley.
Secure the belt with a double clip or equivalent
clip.
014RW00004
Legend
(1) Alignment Mark on Timing Belt (White line).
(2) Alignment Mark on Camshaft Drive Gear
Pulley.
(3) Alignemnt Mark on Cylinder Head Cover RH.
4. Align the alignment mark on the LH bank
camshaft drive gear pulley (2) to the alignment
mark of the cylinder head cover LH (3).
5. Align the alignment mark (white line) on the timing
belt (1) with the alignment mark on the LH bank
camshaft drive gear pulley (2).
When aligning the timing marks, use a wrench to
turn the camshaft drive gear pulley, then set the
timing mark between timing belt and camshaft
drive gear pulley and put the timing belt on the
camshaft drive gear pulley.
Secure the belt with a double clip or equivalent
clip.
NOTE: It is recommended for easy installation that the
belt be secured with a double clip or equivalent clip after
it is installed the timing belt to each pulley.
014RW00005
Legend
(1) Alignment Mark on Timing Belt (White line).
(2) Alignment Mark on Camshaft Drive Gear
Pulley.
(3) Alignemnt Mark on Cylinder Head Cover LH.
6. Install crankshaft pulley temporarily and tighten
center bolt by hand (do not use a wrench).
Turn the crankshaft pulley clockwise to give some
belt slack between the crankshaft timing pulley
and the RH bank camshaft drive gear pulley.
2. Install pusher and tighten bolt to the specified torque.
Torque : 25 N·m (2.5 Kg·m/18 lb ft)
1. Install the pusher while pushing the tension pulley
to the belt.
2. Pull out pin from the pusher.
NOTE: When reusing the pusher, press the pusher with
approximately 100Kg to retract the rod, and insert a pin
(1.4 mm piano wire).
014RW011