How do u get the cover off of the 4.0 eng thah cover crankshaft got the oilpan off and all the bolt out

check that the bottom half of the timing chain cover isn't too tight, or the seals and gaskets are good and stuck, make sure you have a couple oilpan bolts threaded loosely enough to allow the oilpan to move but threaded enough to hold the oilpan up, hit the bottom of the oilpan to knock it loose

1 drain oil
2 remove bolts retaining oilpan
3 clean mating surfaces on oilpan and engine block
4 check fit gasket to see if holes line up
5 reattach oilpan to engine block and tighten to specified torque
6 put required lube oil in motor to level and start to check for leaks

• ENGINE 2.4L

DESCRIPTION

N·m

Ft. Lbs.

In. Lbs.

Balance Shaft Carrier to Block-Bolts

54

40

-

Balance Shaft Gear Cover-Double Ended Fastener

12

-

105

Balance Shaft Sprocket- Bolt

28

-

250

Balance Shaft Chain Tensioner-Bolts

12

-

105

Balance Shaft Carrier Cover-Bolts

12

-

105

Camshaft Sprocket-Bolt

101

75

-

Connecting Rod Cap-Bolts

54 +1/4 turn

40 +1/4 turn

-

Crankshaft Main Bearing Cap/Bedplate - M8 Bolts

34

250

-

M11 Bolts

41 +1/4 Turn

30 +1/4 Turn

-

Crankshaft Damper

136

100

-

Cylinder Head Cover- Bolts

12

-

105

Flex Plate to Crankshaft

95

70

-

Flywheel Mounting Bolts

81

60

-

Engine Mount Bracket Right-Bolts

61

45

-

Exhaust Manifold to Cylinder Head-Bolts

23

-

200

Exhaust Manifold Heat Shield-Bolts

12

-

105

Intake Manifold - Lower -Bolts

28

-

250

Oil Filter

20

15

-

Oil Pan-Bolts

12

-

105

Oil Pan Drain-Plug

27

20

-

Oil Pump to Block-Bolts

28

-

250

Oil Pump Cover Plate-Bolts

12

-

105

Oil Pump Pick-up Tube-Bolt

28

20

-

Oil Pump Relief Valve-Cap

41

30

-

Spark Plugs

28

Timing Belt Covers - Front Covers to Rear Cover-Bolts

12

-

105

- Rear Cover-Bolts

12

-

105

Timing Belt Tensioner Assembly-Bolts

61

45

-

hi yes it is gotta drop the oilpan take eyerything off on front of motor thats in the way of removeing the seal fanbelt pullys cover timmingbelt turn back the bolts holding the crankshaft a little 3 or 4 turns replace the seal reasemble the parts and dont foget the timming marks for the timmingbelt

Timing Chain: Service and Repair
REMOVAL
Tools Required = Crankshaft Sprocket Puller
1. Remove the timing cover.
2. Remove the crankshaft position sensor reluctor ring.
3. Remove the camshaft sprocket bolts.
4. Remove camshaft sprocket.
5. Remove timing chain.
6. Remove the crankshaft sprocket.
7. Remove crankshaft sprocket key.

INSTALLATION
1. Install the key into the crankshaft keyway.
2. Use the crankshaft balancer installer to install the crankshaft sprocket.
3. Install the camshaft sprocket and timing chain.
4. Install camshaft sprocket bolts.
Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).
Tighten bolts to 21 ft. lbs.
5. Align the keyway on the reluctor ring with the key in the crankshaft.
6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.
7. Install the timing cover.

Don't know what Wire you are referring to.

The crankshaft position sensor is located at right hand side of rear eng block by bell housing. Its easy to see by removing top eng cover look down thru the gap between intake manifold ports. The sensor is on the timing cover by the crankshaft. and is only $20 bucks. And for the crank pulley.The crank pulley on your Altima is on the passenger side. Jack up the car and remove the passenger side tire and inner fenderwell and you will see it.
Remove the (4) allen head bolts that hold the plastic engine cover. Remove the air tube that connects the throttle chamber to air filter box. Pull off the valve cover breather hose with the air tube. Now place a drop light under the two rubber heater hoses (at the firewall on the drivers hand side), shining the light forward towards the back side of the block (below the intake runners). To see the crankshaft sensor and connector, look between the valve cover and the throttle chambers (intake runners) on the drivers side, look straight down toward the ground… look for the sensor with a black wire connector with a green tab on the side, held to the engine block with a gold colored 10mm hex headed bolt. You will need to view the sensor from this position as you are following the steps below to remove and install the crank sensor. check fig:--

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Hi,


You find the timing marks on the picture below.





Removal
Remove auxiliary 1. drive belts.
2. Support engine.
Remove:
Engine mounting and bracket.
Timing belt upper cover [1].
3.
4. Turn crankshaft clockwise to TDC on No.1 cylinder. Ensure timing marks aligned [2] & [3].
Remove:
Crankshaft pulley bolt [4].
Crankshaft pulley [5]. Use tool No.09213-60017.
5.
6. Ensure timing marks aligned [2] & [3].
7. Slacken tensioner bolt [6]. Move tensioner away from belt and lightly tighten bolt.
Remove:
Timing belt lower cover [7].
Crankshaft sprocket guide washer [9].
Timing belt.
Tensioner pulley.

Installation
Installation
1. Check tensioner pulley for smooth operation.
2. Check free length of tensioner spring is 46,0 mm [8]. Replace spring if necessary.
3. Fit tensioner and spring. Ensure spring is connected correctly.
4. tighten bolt [6].
5. Ensure timing marks aligned [2] & [3].
6. Fit timing belt. Ensure belt is taut between sprockets.
Install:
Crankshaft sprocket guide washer [9].
Timing belt lower cover [7].
Crankshaft pulley [5].
7.
8. Slacken tensioner bolt 1/2 turn [6].
9. Turn crankshaft two turns clockwise to TDC on No.1 cylinder. Ensure timing marks aligned [2] & [3].
Turn crankshaft slowly 1 7/8 turns clockwise until crankshaft pulley timing mark [3] aligned with 45° BTDC mark [10] on
timing belt lower cover [7].
10.
11. Tighten tensioner bolt [6]. Tightening torque: 42 Nm.
12. Install components in reverse order of removal.
13. Tighten crankshaft pulley bolt [4]. Tightening torque: 108 Nm.
Manufacturer: Toyota

This is the complete procedure from the service manual on how to replace the timing belt start to finish, start over to assure u get it right, if u mess up the engine will be damaged

Removal for 1.6L engines : ONLY 2006 to 2009 CARS


Engine removal is not required for this procedure.

1.Remove the engine cover.

2.Remove the RH front wheel.

3.Remove the 2 bolts and RH side cover.

4.Temporarily loosen the water pump pulley bolts.

5.Remove the alternator drive belt

6.Remove the air conditioner compressor drive belt

7.Remove the power steering pump drive belt

8.Remove the 4 bolts and water pump pulley.

9.Remove the 4 bolts and timing belt upper cover

10.Turn the crankshaft pulley, and align its groove with timing mark "T" of the timing belt cover. Check that the timing mark of camshaft sprocket is aligned with the timing mark of cylinder head cover. (No.1 cylinder compression TDC position)

11.Remove the crankshaft pulley bolt and crankshaft pulley

12.Remove the crankshaft flange

13.Remove the 4 bolts and timing belt lower cover

14.Remove the timing belt tensioner and timing belt.

15.Remove the bolt and timing belt idler

16.Remove the crankshaft sprocket

17.Remove the cylinder head cover.

(1)Remove the wire harness bracket

(2)Remove the ignition coil.

(3)Remove the PCV (Positive Crankcase Ventilation) hose and the breather hose from the cylinder head cover

(4)Remove the engine cover bracket

(5)Loosen the cylinder head cover bolts and then remove the cover and gasket.

18.Remove the camshaft sprocket.

Hold the portion of the camshaft with a hexagonal wrench, and remove the bolt with a wrench and remove the camshaft sprocket.

INSTALLATION:

1.Install the camshaft sprocket and tighten the bolt to the specified torque.

(1)Temporarily install the camshaft sprocket bolt

(2)Hold the portion of the camshaft with a hexagonal wrench, and tighten the bolt with a wrench
Tightening torque :78.5 ~ 98.1N.m (8.0 ~ 10.0kgf.m, 57.9 ~ 72.3lb-ft)



2.Install the cylinder head cover.

(1)Install the cylinder head cover and bolts
Tightening torque :7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)

(2)Install the engine cover bracket

(3)Install the PCV(Positive Crankcase Ventilation) hose and breather hose to the cylinder head cover.

(4)Install the ignition coil.

3.Install the crankshaft sprocket

4.Align the timing marks of the camshaft sprocket and crankshaft sprocket with the No.1 piston placed at top dead center and its compression stroke.

5.Install the idler pulley and tighten the bolt to the specified torque.

Tightening torque :42.2 ~ 53.9N.m (4.3 ~ 5.5kgf.m, 31.1 ~ 39.8lb-ft)

6.Temporarily install the timing belt tensioner

7.Install the belt so as not give slack at each center of shaft. Use the following order when installing timing belt.
Crankshaft sprocket →idler pulley →camshaft sprocket →timing belt tensioner

8.Adjust the timing belt tension.

(1)Loosen the tensioner pulley mounting bolt and apply tension to the timing belt.

(2)After checking the alignment between each sprocket and each timing belt tooth, tighten the mounting bolt and one by one.

Tightening torque :19.6 ~ 26.5N.m (2.0 ~ 2.7kgf.m, 14.5 ~ 19.5lb-ft)

(3)Then recheck the belt tension.
Verify that when the tensioner and the tension side of the timing belt are pushed in horizontally with a moderate force [approx. 49N (11lb)], the timing belt cog end is aprox. 1/2 of the tensioner mounting bolt head radius (across flats) away from the bolt head center.

4)Timing belt tension measuring procedure
(by a sonic tension guage)
Rotate crankshaft in clockwise direction to set 1st piston on top dead center (TDC) and rotate crankshaft in counterclockwise to 90° then measure the belt tension in the middle of tension side span (in arrow direction of above illustration) by free vibration method.


9.Turn the crankshaft two turns in the operating direction (clockwise) and realign crankshaft sprocket and camshaft sprocket timing mark.


10.Install the timing belt lower cover with 5bolts

Tightening torque :7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)

11.Install the flange and crankshaft pulley, and then tighten crankshaft pulley bolt. Make sure that crankshaft sprocket pin fits the small hole in the pulley.

Tightening torque :137.3 ~ 147.1N.m (14.0 ~ 15.0kgf.m, 101.3 ~ 108.5lb-ft)

12.Install the timing belt upper cover with 4 bolts.

Tightening torque :7.8 ~ 9.8N.m (0.8 ~ 1.0kgf.m, 5.8 ~ 7.2lb-ft)

13.Install the water pump pulley and 4 bolts.

14.Install the power steering pump drive belt

15.Install the air conditioner compressor drive belt

16.Install the alternator drive belt

17.Install the RH side cover with 2 bolts

18.Install the RH front wheel.


Tightening torque :88.3 ~ 98.1N.m (9.0 ~ 10.0kgf.m, 65.1 ~ 72.3lb-ft)

19.Install the engine cover with bolts.


Tightening torque :3.9 ~ 5.9N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3lb-ft)

they are usualy counter clockwise to remove bolt you must lock the flywheel so it dont turn while losening the bolt! when you remove the pully be carefull and see if there is a keyway on the crank or pulley so it dont fall into the oilpan!

Align the camshaft sprockets between the marks on the covers,behind pulley's

Align the crankshaft sprocket with the TDC mark on the oil pump cover.