Timing marks and aligning timing belt

Check out the relatively help links,with diagrams to troubleshoot the problem:---
For all types of--------- Timing belt routing diagrams for cars and trucks?

Click the link below:----

http://technoanswers.blogspot.in/2011/10/timing-belt-routing-diagrams-for-cars.html

========== For all types of Drive belt routing diagrams for cars and trucks?

Click the link below
http://technoanswers.blogspot.in/2011/10/drive-belt-routing-diagrams-for-cars.html

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These will help.
Thanks.

hi roy.
try this link out and it should be at the top of the page.
Timing marks for 1998 nissan pathfinder Google Search

COULD BE A BAD BEARING IN THE IDLER PULLY OR THE TENSIONER ON THE TIMING BELT OR THE SERPENTINE BELT. IF ITS A SQUEEL IT MAY BE SOME COOLANT GOT ON THE SERPENTINE BELT. TRY TO WASH THE BELT WITH WATER AND LET DRY COMPLETELY. IF NOISE REMAINS RETURN TO THE SHOP THAT DID THE WORK.

Hi, Disconnect battery ground cable, then drain coolant. Remove accessory drive belts. Remove A/C compressor drive belt idler pulley (tensioner) bolts, then idler pulley (tensioner). Remove upper radiator hose bracket bolt. Loosen two upper radiator hose clamps, then remove upper hose and bracket. Remove coolant bypass hose between thermostat housing and intake manifold coolant outlet. Disconnect main wiring harness from upper front cover (timing belt) cover, then remove eight upper timing belt cover bolts, then the upper cover, Fig. 20. Raise and support vehicle. Remove right front wheel and tire assembly and splash shield. Use strap wrench tool No. D85L-6000-A, or equivalent, to hold water pump pulley while removing water pump pulley bolts. Remove water pump pulley from water pump. Remove crankshaft pulley. Remove five lower timing belt cover attaching bolts and the cover. Rotate crankshaft in a clockwise direction to align crankshaft and camshaft sprocket timing marks, Fig. 21. If timing belt is to be reused, mark direction of rotation. Loosen timing belt tensioner nut, then remove timing belt. CAUTION: With timing belt removed, avoid turning camshaft or crankshaft. If movement is required, exercise extreme caution to avoid valve damage caused by piston contact.
Take care

yes you will have to remove the timing belt and crank pully. It is not as bad as it looks. You might as well, while you are in there, change the thermostat and new Timing belt and tensioner pully.
The trick I use, (and I have done hundreds of Timing belts) I use a good paint pen to mark the timing belt and gears. make sure to mark it so you know what marks are for what cam and crank. and which direction it goes. then on the new belt crefully transfer the marks. then it goes really smooth and there is no guessing hoping it is properly lined up on the factory marks. and you dont have to line every thing up before you take off the belt either. just mark it and remove it where the motor stopped..If you do it this way, you dont have to worry about trying to line up the cams and crank to there respective marks, just the ones you made, then there is no mistake.

big job you will have to remove the timing belt to do it so you might as well change it since you will have it off,but i don' t recommend just any body do it as you will need metric bolt puller set to remove the crank pulley,but mostly you remove the radiator shroud and everything in the way of the plastic belt covers as they have to come off to access belt and water pump.its about four hour job with professional tools.

To install water pump, camshaft timing belt need to come off, if timing belt was not align right at all timing marks, will not start and will bent valve's being this engine is an interference engine.To check if you have bent valve do a cylinder compression test, if any with zero compression bent valve's.

need to remove belts/fan timing cover /rotate tdc aling marks /remove damper pulley/remove second timing cover/ remove water pump

go here for expert help on Villager & Quest

http://groups.yahoo.com/group/villagerquest/



Item Part Number Description 1 — 40 Timing Chain/Belt Teeth 2 6256 Camshaft Sprocket , Front 3 — 43 Timing Chain/Belt Teeth 4 6306 Crankshaft Sprocket 5 6268 Timing Chain/Belt 6 6256 Camshaft Sprocket , Rear
Removal

1. Drain the cooling system. Refer to Section 03-03 for the procedure.
   

1. Disconnect the battery ground cable (14301) .
   

1. Remove the generator drive belt, water pump and power steering pump drive belt, and the A/C compressor drive belt (if equipped). Refer to Section 03-05 for the removal procedure.
   

1. If equipped, remove the three A/C compressor drive belt idler pulley bolts and the A/C compressor drive belt idler pulley.
   

1. Remove the upper radiator hose bracket bolt.
   

1. Loosen the two upper radiator hose clamps and remove the radiator hose bracket bolt. Remove the upper radiator hose (8260) and the upper radiator hose bracket from the vehicle.
   

1. Remove the water bypass hose (8597) from between the thermostat housing and the water hose connection (8592) .
   

1. Remove the main wiring harness from the upper engine front cover (6019) .
   

1. Remove the eight upper engine front cover bolts and the upper engine front cover .
   

1. Raise and support the vehicle.
   

1. Remove the RH front wheel and tire assembly.
   

1. Remove the four RH outer engine and transmission splash shield bolts and two screws and remove the RH outer engine and transmission splash shield (6775) .
   

1. Use Strap Wrench 303-D055 (D85L-6000-A) or equivalent to hold the water pump pulley (8509) while removing the four water pump pulley bolts.
   

1. Remove the water pump pulley from the water pump (8501) .
   

1. Remove the crankshaft pulley (6312) . Refer to the procedure in this section.
   

1. Remove the five lower engine front cover bolts and the lower engine front cover .
   
2. Ensure that the timing marks between the crankshaft sprocket (6306) and the oil pump housing line up.
   
3. NOTE: The directional arrow is necessary to ensure that the timing chain/belt (6268) can be reinstalled in the same direction.
   
4. Loosen the timing chain/belt tensioner nut.
   
5. Remove the timing chain/belt .
   
   
6. Installation
   NOTE: Ensure that the timing marks on the camshaft sprockets (6256) and the seal plate are properly aligned. Ensure that the timing marks on the crankshaft sprocket and the oil pump housing are still aligned. NOTE: A new timing chain/belt has three white timing marks that indicate the correct timing positions of the camshafts (6250) and the crankshaft (6303) . These marks will help ensure that the engine (6007) is timed properly. When the engine is properly timed each white timing mark on the timing chain/belt will be aligned with the corresponding camshaft and crankshaft timing mark on the sprocket. Because the white timing marks are not evenly spaced you will need to refer to the following illustration for proper timing chain/belt placement. There should be 40 timing belt teeth between the timing marks of the front and rear camshaft sprockets and 43 teeth between the timing mark on the front camshaft sprocket and the timing mark on the crankshaft sprocket .
   
   NOTE: Verify that the camshaft timing marks are aligned with the timing marks on the seal plate, and that the crankshaft sprocket timing mark is aligned with the timing mark on the oil pump (6600) .
   
   Install the timing chain/belt starting at the crankshaft sprocket and moving around to the camshaft sprocket following a counterclockwise path. Do not allow any slack in the timing chain/belt between the timing sprockets. After all of the timing marks are matched up with the timing chain/belt installed, slip the timing chain/belt onto the timing chain/belt tensioner .
   
   
   
   
   
   

This is one of the most frusterating things to do because of the very limited space inside the engine, but you will have to remove the radiator the fan blade, all the hoses, the balancer, move the alternator, remove the timing belt cover and all the serpentine belts, remove the timing belt "MARK THE BELT WHERE IT ORIGINALY WAS OR YOU WILL MESS THE TIMING UP AND POSSIBLY THE ENGINE!!!", Remove water pump the reinstall new one, the assemble everything back together!! GOOD LUCK ITS A PAIN IN THE @$$!!!!