Recently the nylon driven gear driving the contant points broke. I have a replacement but need to align it correctly with the gear on the crankshaft to get ignition timing correct.how do i determine this position?

Sounds like timing belt not on correctly. Check timing marks are aligned correctly when installing timing belt. This vehicle should have 2-3 marks to be aligned when installing belt.marks should be on cam gear/ crankshaft gear and intermediate shaft if engine is equipped with it.

1. Remove the fan and generator V belt:



2. TIMING CHAIN (2az-FE Engine):
Before servicing the vehicle, refer to the Precautions Section.
Drain the engine oil.
Remove or disconnect the following:
Negative battery cable
Hood Right-side front wheel Engine under covers Right-side fender apron seal Front exhaust pipe Engine moving control rod and bracket Right-side engine mounting stay and bracket Accessory drive belt Engine appearance cover Engine wire Alternator Power steering pump, leave the hoses connected Ignition coils Ventilation hoses Cylinder head cover Turn the crankshaft pulley to set the No. 1 cylinder to TDC compression. Align the groove on the pulley with the timing mark -0- on the front cover. Remove the crankshaft pulley as follows:

1. TMC made: Use Special Tool 09213-54015 to hold the pulley to loosen the bolt. Use Special Tool 09950-50013 to remove the bolt and pulley.

2. TMMK made: Use Special Tool 09960-10010 to hold the pulley to remove the bolt. Use Special Tool 09950-40011 to remove the crankshaft pulley


Fig. Removing the crankshaft pulley-TMC-2.4L (2AZ-FE) engine


Fig. Removing the crankshaft pulley-TMMK-2.4L (2AZ-FE) engine


Remove or disconnect the following:
Crankshaft position sensor Lower oil pan No. 1 chain tensioner Accessory drive belt tensioner

Support the engine with a suitable engine lifting device.

Remove or disconnect the following:
Engine mounting insulators Right-side engine mounting bracket Stud bolt for the accessory drive belt tensioner from the block Front cover mounting bolts and nuts Front cover Crankshaft position sensor plate Timing chain tensioner slipper Timing chain vibration damper Timing chain Crankshaft timing sprocket

• Turn the crankshaft counterclockwise by 90°, and align an adjusting hole of the oil pump driven sprocket with the groove of the oil pump.

Fig. Align the adjusting hole of the oil pump drive sprocket with the oil pump groove-2.4L (2AZ-FE) engine


Fig. Insert a bar to lock the sprocket in position-2.4L (2AZ-FE) engine
Put a bar in the adjusting hole of the oil pump driven sprocket to temporarily lock the sprocket in position. Remove the nut.


Remove the bolt, chain tensioner and spring.


Remove the chain tensioner, oil pump sprocket and No. 2 timing chain.


To install:
Set the crankshaft key into the left horizontal position. Turn the cutout of the drive shaft to the top

Fig. Align the crankshaft key and drive shaft cutout as shown for installation-2.4L (2AZ-FE) engine
Align the yellow colored links with the timing marks of the sprocket as shown in the illustration.

Insert the sprockets with chain to the crankshaft and oil pump shaft.

Temporarily tighten the oil pump driven sprocket with the nut.

Insert the damper spring into the adjusting hole, and install the chain tensioner plate with the nut. Tighten to 9 ft. lbs. (12 Nm).

Align the adjusting hole of the oil pump driven sprocket with the groove of the oil pump.

Put a bar in the adjusting hole of the oil pump driven sprocket to temporarily lock the sprocket in position. Tighten the nut to 22 ft. lbs. (30 Nm).

Rotate the crankshaft counterclockwise by 90°, and align the crankshaft key to the top.

Install the timing chain vibration damper. Tighten to 80 inch lbs. (9 Nm).

Align the timing marks of the camshaft timing sprockets and bearing caps.

Using the crankshaft pulley bolt, turn the crankshaft and set the set key on the crankshaft upward.

Align the gold or orange colored link with the timing mark of the crankshaft timing sprocket.

Using Special Tool 09309-37010, tap in the sprocket.

Align the gold or yellow colored links with the timing marks of the camshaft timing gear and camshaft timing sprocket. Install the chain.

Fig. Align the marks of the sprockets and bearing caps to set the No. 1 cylinder at TDC-2.4L (2AZ-FE) engine

Fig. Set the crankshaft set key facing upward-2.4L (2AZ-FE) engine

Fig. Align the marked link of the timing chain with crankshaft sprocket timing mark-2.4L (2AZ-FE) engine

Fig. Tap the crankshaft sprocket in with Special Tool 09309-37010-2.4L (2AZ-FE) engine


Fig. Align the marked links of the timing chain with the camshaft sprockets during installation-2.4L (2AZ-FE) engine

Hi, the procedure is pasted below. Ignore the timing marks and just verify you are at TDC of the compression stroke on the #1 piston. You can tell compression versus exhaust stroke by plugging the spark plug hole with your thumb while turning the crankshaft (there will be no pressure on the exhaust stroke). Please let me know if you have more questions, and thanks for using FixYa.


Timing Disturbed

1. Remove the No. 1 cylinder spark plug. Turn the engine using a socket wrench on the large bolt on the front of the crankshaft pulley. Place a finger near the No. 1 spark plug hole and turn the crankshaft until the piston reaches Top Dead Center (TDC). As the engine approaches TDC, you will feel air being expelled by the No. 1 cylinder. If the position is not being met, turn the engine another full turn (360 degree). Once the engine position is correct, install the spark plug.
2. Align the cast arrow in the distributor housing, the driven gear roll pin and the pre-drilled indent hole in the distributor driven gear. If the driven gear is installed correctly, the dimple will be approximately 180° opposite the rotor segment when it is installed in the distributor.
   NOTE Installing the distributor 180° out of alignment, or locating the rotor in the wrong holes, may cause a no start condition or can cause premature engine damage and wear.
   
3. Make sure the rotor is pointing to the cap hold-down mount nearest the flat side of the housing.
4. Using a long screwdriver, align the oil pump drive shaft in the engine in the mating drive tab in the distributor.
5. Install the distributor in the engine. Make sure the spark plug towers are perpendicular to the centerline of the engine.
6. When the distributor is fully seated, the rotor segment should be aligned with the pointer cast in the distributor base. The pointer will have a -6'' cast into it indicating a 6 cylinder engine. If the rotor segment is not within a few degrees of the pointer, the distributor gear may be off a tooth or more. If this is the case repeat the process until the rotor aligns with the pointer.
7. Install the cap and fasten the mounting screws.
8. Tighten the distributor mounting bolt to 18 ft. lbs. (25 Nm).
9. Engage the electrical connections and the spark plug wires.

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

The water pump is driven by the timing belt. You will have to remove the crankshaft pulley and the timing cover. Once the pump is installed you will have to re-install the timing belt. A NEW timing belt is recommended and I always change them. there are "timing" marks on the crankshaft gear and the camshaft gear that need to be aligned and must be "dead on" to prevent serious engine damage. If your not comfortable doing this work I would have a professional do it as you don't want to do it wrong and risk damaging the engine to the point that it needs to be replaced.

Only the 2.3 liter diesel is an interference engine. The 2.3 Liter gas is not an interference engine. I would guess the belt was not installed correctly. The belt broke so the cam was then out of alignment with the crankshaft. Unless you aligned it correctly it will not start. BTW, the belt must be replaced every 60,000 miles. I asume you have the timing cover off, put it back on and set the crankshaft at the 0 mark on the timing cover, remove the cover and don't touch the crank. near the bottom of the cam gear is a protruding piece of plastic with three raised areas, set the cam timing mark at the first pointer, closest to the passenger side . on the back part of the timing cover is a v shaped pointer set the distributor gear mark at the pointer, remove the distributor cap and verify that the rotor is pointing at #1. Loosen both bolts on the tensioner and using a pry bar carefully pry the tensioner away from the distributor gear, tighten the small bolt on the tensioner. install the new belt starting at the crank, then the distributor gear, then the cam, then over the tensioner pulley. loosen the small bolt and the tensioner will adjust automatically. tighten the tensioner bolts and turn the engine over by hand 2 or 3 times and make sure all marks line up ( the cam mark should now be at the center pointer with the crank at 0). I find it handy to paint a reference mark for the crank inside the timing cover.

IF U BROKE THIS BELT WHILE DRIVING U HAVE BENT THE VALVES IN THE ENGINE, THIS IS WHAT IS CALLED AN INTERFERENCE DESIGN ENGINE, THAT MEANS WHEN THE TIMING BELT BREAKS THE PISTONS HIT THE ENGINES VALVES

remove the #1 sparkplug place a long screwdriver in the sparkplug hole point touching the top of the piston turn the crankshaft around until the screwdriver is almost pushed out (top dead center)
check to see that the distributor rotor is pointing at the #1 sparkplug wire it must be; if not: turn the crankshaft again until it does
then turn the camshaft around until both valves above the #1 piston cylinder are closed
this is correct; now find the marks on the belt camshaft sprocket gear and, crankshaft gear aline the belt marks with the gear marks and, install the belt

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

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