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Noisy water pump pulley,alternator pulley..timing belt tensioner
Last year I replaced the octopus hose, alternator and water pump. I installed new belts all the way around. Gradually I have the most unappealing noise coming from the front of the engine...wobley squeeling sound with a high pitch metal to metal whine...I cant drive the car with it. It used to go away after the car warmed up. I replaced the alternator belt. I have lubed belts and pulleys. I disconnected the ac belt and the supercharger belt and the noise is still there...I'm losing it !
I have the same car and the same problem. Metal to metal screeching sound when I start the car in the morning. Disappears when the water temperature is at its normal running temperature. If I switch the heating system off, the noise goes. My mechanic says he changed all the belts and doesn't know what causes the noise. Only way is to open up the engine, he says. But the car runs wonderfully well, the engine seems fine to me and this five months after the screeching started. So, in my opinion, the engine is fine. I love my car and drive it every day. Does anyone out there have a solution ? Thanks in advance for your help. George I have the same car and the same problem. Metal to metal screeching sound when I start the car in the morning. Disappears when the water temperature is at its normal running temperature. If I switch the heating system off, the noise goes. My mechanic says he changed all the belts and doesn't know what causes the noise. Only way is to open up the engine, he says. But the car runs wonderfully well, the engine seems fine to me and this five months after the screeching started. So, in my opinion, the engine is fine. I love my car and drive it every day. Does anyone out there have a solution ? Thanks in advance for your help. George
AnonymousApr 18, 2009
I had a similar noise twice, first time the local jag dealer replaced the supercharger after telling me it was the front bearing on that and only solution was a new blower :(. second time, different jag dealer exact same noise, they replaced the supercharger drive belt worked perfect. I had a similar noise twice, first time the local jag dealer replaced the supercharger after telling me it was the front bearing on that and only solution was a new blower :(. second time, different jag dealer exact same noise, they replaced the supercharger drive belt worked perfect.
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Re: noisy water pump pulley,alternator pulley..timing...
I have a 1995 xj6....same problem. I replaced the belts, water pump, and the alternator. Still does it. As I play with the tension on the belt (belt that drives water pump, alternator) it goes away and comes back. If I remove the belt, the metal to metal screech stops. I then, with just the belt, turned the main pulley on the front of the engine, and there was the sound! The main pulley has 2 belts that run on it. Also, 2 pulley tracks. They SHOULD move simultaneously and be super meshed. But the rear one moves on its own under tension until it warms up and I guess, the bushing maybe expands. Now.....how do I fix it??????
spot on, thanks. it was the bearing on the water pump pully which was grinding the metal. A simple repair was done. thanksspot on, thanks. it was the bearing on the water pump pully which was grinding the metal. A simple repair was done. thanks
excellent.. glad that worked for you.. it has been the primary suspect and solution for many a noisy jag that has come my way :)excellent.. glad that worked for you.. it has been the primary suspect and solution for many a noisy jag that has come my way :)
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Re: noisy water pump pulley,alternator pulley..timing...
Hello...New to here, and these XJ6 3.2 engines...Dropped some belts off one today for a friend. It did look to me like the alternator had a free wheeling pulley on it. These work like a normally pulley that will free wheel (spin) one way and lock up if they try to turn the other. I had a golf i had to diagnose a similar problem on a few years ago, when everyone had tried belts, tensioners, etc. I found that this pulley had seized so it didn't free wheel any more when it was supposed too. It made the worst screetching noise !!. I replaced the pulley (which in itself was about £50), and the car has now been noise free for 3 years. I know it sounds like a puzzling fix, when alternators always used to have fixed pulleys, but it worked !! Could be worth disconnecting the alternator belt and starting the car for a very short time (to avoid overheating due to no water pump turning) and seeing if the noise disappears with the alternator not spinning. Good luck. I would be interested to hear if this helps...Nolan.
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Place the drain pan under the radiator drain plug, open the plug and allow it to drain. Close the plug. Loosen the four nuts on the waterpump pulley but do not remove them yet. Loosen the adjusting bolts in the alternator and the power steering pump with a wrench, push them away from the belts and remove the belts.
2Remove the bolts securing the fan shroud to the radiator support using a 10 mm socket. Remove the four nuts on the water pump pulley, then remove the fan and shroud as an assembly. Remove the bolts in the crankshaft pulley using a socket. Loosen and remove the crankshaft bolt using a socket.
3
Remove the top radiator hose. Extract all the 10 mm bolts securing the top and bottom timing covers and remove the covers.
4Install the crankshaft bolt temporarily. Use a socket on the bolt and turn the crankshaft clockwise until the mark on the crankshaft sprocket aligns with the timing mark on the block at the 12 o'clock position. Look at the camshaft sprockets and make sure the left sprocket has the "I" facing straight up and the right sprocket has the "E" facing up. At the same time, notice that there is a line on each sprocket adjacent to each mark--make sure they line up with the notch on the cylinder head at 12 o'clock. This allows for perfect alignment. If they do not come close to aligning, rotate the crankshaft one more time and they will align.
5Loosen the tensioner bolt and push the tensioner away from the belt. Loosely tighten the bolt to maintain position. Remove the belt.
6Install the new belt starting on the right side away from the tensioner. Keep all the tension on the right side. Loosen the tensioner bolt and allow it to apply tension on the belt. Do not tighten the bolt yet. Rotate the engine two turns clockwise and re-align the timing marks. Tighten the tensioner bolt to 35 foot-pounds.
7Install the timing belt covers. Remove the crankshaft bolt and install the crankshaft pulley. Reinstall the bolt and tighten. Install the radiator shroud and fan as an assembly. Place the fan on the water pump pulley, install the four nuts loosely, install the bolts in the fan shroud and tighten.
8Install the belts around the crank pulley, water pump pulley and alternator and pull the alternator up to tension the belt and tighten the bolts using a socket. Tighten the water pump pulley nuts using a wrench.
9Install the belt on the powersteering pump, pull the pump out to tension the belt and tighten the bolts. Install the upper radiator hose. Fill the radiator with antifreeze
Drain engine coolant into an appropriate container and retighten radiator drain plug.
Remove upper radiator hose.
Remove fan clutch assembly bolts.
Remove 5 cooling fan shroud bolts.
Remove fan shroud and fan as an assembly.
Loosen alternator mounting bolts and remove drive belt from pulley.
Remove fan pulley.
Remove 4 cooling fan assembly bolts.
Remove cooling fan assembly.
Remove 4 bolts and upper timing belt cover.
Remove 2 lower bolts and lower timing belt cover.
Loosen adjusting bolt and remove A/C belt.
Remove alternator belt.
Loosen power steering pump lock bolt and mounting bolt.
Remove drive belt from crankshaft damper.
Camshaft timing marks
Turn crankshaft until timing mark on front housing and the arrow "2" on the camshaft pulley align.
Remove 5 bolts and remove damper.
Remove timing belt guide from timing belt pulley.
Loosen tensioner lock bolt.
Pry tensioner away from timing belt and tighten lock bolt to relieve tension on the timing belt.
NOTE: Mark the direction of timing belt rotation on the belt if it is being reused.
Remove timing belt.
To Install:
Timing belt pulley timing marks
NOTE: Timing belt pulley timing mark and timing mark must be aligned.
Camshaft timing marks
NOTE: The arrow at "2" on camshaft pulley must be aligned with timing mark on front housing.
Timing belt installation
Install timing belt with minimal slack from timing belt pulley to water pump and from water pump to camshaft pulley.
Loosen tensioner lock bolt until tension is applied to timing belt.
CAUTION Do not turn crankshaft counterclockwise.
Turn crankshaft pulley 2 full turns clockwise and ensure timing marks are properly aligned.
Tighten tensioner lock bolt to 33 ft lb (45 Nm).
Apply a force of 21 lb to timing belt midway between idler pulley and camshaft pulley.
Deflection should measure 0.43-0.51 inch (11-13 mm)
NOTE: if timing belt deflection is incorrect remove timing belt and install NEW tensioner spring.
Install timing belt guide.
Install crankshaft damper pulley.
Install 5 crankshaft damper pulley bolts. Tighten bolts to 132 in lb (15 Nm).
Install power steering pump drive belt.
Adjust power steering pump drive belt tension and tighten lock bolt and mounting bolt.
Install alternator drive belt.
Install A/C drive belt.
Install lower timing belt cover and bolts. Tighten bolts to 84 in lb (10 Nm).
Install upper timing belt cover and bolts. Tighten bolts to 84 in lb (10 Nm).
Install cooling fan assembly and 4 bolts. Tighten bolts to 27 ft lb (37 Nm).
Install fan pulley.
Install fan clutch and shroud as an assembly. Tighten bolts to 74 in lb (8 Nm).
Tighten 4 cooling fan nuts to 16 ft lb (22 Nm).
Adjust alternator belt tension and tighten alternator mounting bolts.
Kia Sorento 2003-05 Water Pump - Removal & Installation
Before servicing the vehicle, refer to the precautions at the
beginning of this section.
Drain the cooling system.
Disconnect the negative battery cable.
Remove the drive belt and the water pump pulley.
Remove the timing belt cover, timing belt, auto tensioner and
idler pulley.
Remove the water outlet fitting, the thermostat case and the water
pump fitting.
Remove the water pump mounting bolts.
Remove the water pump.
Fig. Water pump and timing belt assembly-exploded view
To install:
Fig. Water pump bolt locations
Clean the gasket surfaces of the water pump body and the cylinder
block.
Install the new water pump gasket and pump assembly. Tighten the
bolts to 12-16 ft. lbs. (17-22 Nm).
Install the water pump fitting, the thermostat case and the water
outlet fitting.
Install the auto tensioner and timing belt. Adjust the timing belt
tension, then install the timing belt cover.
Install the drive belt, water pump pulley and then adjust the auto
tensioner.
Refill the coolant.
Run the engine and check for leaks.
Before servicing the vehicle, refer to the Precautions Section.
Drain the cooling system.
Disconnect the negative battery cable.
Remove the drive belt and the water pump pulley.
Remove the timing belt cover, timing belt, auto tensioner and
idler pulley.
Remove the water outlet fitting, the thermostat case and the water
pump fitting.
Remove the water pump mounting bolts.
Remove the water pump.
To install:
Fig. Water pump bolt locations
Fig. Water pump O-ring installation
Clean the gasket surfaces of the water pump body and the cylinder
block.
Install the new water pump gasket and pump assembly. Tighten the
bolts to 12-16 ft. lbs. (17-22 Nm).
Install the water pump fitting, the thermostat case and the water
outlet fitting.
Install the auto tensioner and timing belt. Adjust the timing belt
tension, then install the timing belt cover.
Install the drive belt, water pump pulley and then adjust the auto
tensioner.
To adjust the drive belt tension, hang the belt on the pulley of
the tensioner and install the tensioner.
NOTE
If the tensioner is already installed, loosen its mounting bolts
to allow belt installation
Install the drive belt.
Adjust the belt tension to specification by turning the adjusting
bolt clockwise or counterclockwise.
Air conditioning belt tension should be 0.28-0.039 inch.
Alternator belt tension should be 0.39-0.051 inch. Power steering belt
tension should be 0.31-0.051 inch.
Torque the tensioner assembly bolt to 33-36 ft. lbs. (45-50 Nm).
Refill the coolant.
Run the engine and check for leaks.
TY for using Fixya; remember comment and rated this.
Remove the suction pipe bracket for the A/C compressor, if equipped.
Loosen but do not remove the 4 water pump pulley bolts.
Raise and safely support the vehicle.
Remove the lower splash shield.
Remove the A/C compressor drive belt, if equipped.
Remove the alternator drive belt.
Remove the crankshaft and water pump pulleys.
Remove the timing belt.
Remove the oil level dipstick and tube.
Remove the alternator adjusting bracket from the water pump.
Remove the water pump rubber seals.
Remove the water pump mounting bolts and nuts and remove the water pump from the engine.
Water pump mounting location
Clean the gasket mating surfaces thoroughly.
Check the water pump by hand for smooth operation. If the pump does not operate smoothly or is noisy, replace it.
Install the pump using a new gasket. Tighten the bolts to 115 inch lbs. (13 Nm).
Install new rubber seals.
Install the upper alternator adjusting bracket and tighten the bolt to 17 ft. lbs. (23 Nm).
Install the oil level dipstick and tube.
Install the timing belt.
Install the water pump and crankshaft pulleys. Leave the water pump pulley bolts hand-tight.
Install the alternator drive belt.
Install the lower alternator cover plate and tighten the bolts to 89 inch lbs. (10 Nm).
Install the A/C compressor drive belt, if equipped.
Install the lower splash shield and lower the vehicle.
Tighten the water pump pulley mounting bolts to 18 ft. lbs. (24 Nm).
Adjust the water pump drive belt tension and tighten the alternator adjustment bolt to 17 ft. lbs. (23 Nm).
Install the suction pipe bracket for the A/C compressor, if equipped.
Install the air cleaner.
Refill the cooling system.
Connect the negative battery cable.
Start the engine and check for leaks.
Water pump assembly showing rubber seal location
Disconnect the negative battery cable.
Drain the cooling system.
CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
Remove the air cleaner assembly.
Loosen but do not remove the four coolant pump pulley bolts.
Raise and support the vehicle safely.
Remove the lower splash shield.
Remove the air conditioner compressor drive belt.
Remove the lower alternator cover plate bolts, loosen the alternator adjusting bolt, and remove the drive belt.
Remove the crankshaft pulley.
Remove the coolant pump pulley.
Remove the timing belt.
Remove the oil level dipstick and guide tube.
Remove the alternator adjusting bracket from the water pump.
Remove the water pump rubber seals.
Remove the water pump mounting bolts and nuts. Remove the water pump from the vehicle.
To install:
Clean the gasket mating surfaces thoroughly.
Check the water pump by hand for smooth operation. If the pump does not operate smoothly or is noisy, replace it.
Install the pump using a new gasket. Tighten bolts to 115 inch lbs. (13 Nm).
Install new rubber seals.
Install the upper alternator adjusting bracket and tighten bolt to 17 ft. lbs. (23 Nm).
Install the oil level dipstick and guide tube.
Install the timing belt.
Install the water pump pulley and leave the bolts hand tight.
Install the crankshaft pulley.
Install the water pump/alternator drive belt.
Install the lower alternator cover plate and tighten bolts to 89 inch lbs. (10 Nm).
Install the air conditioner compressor drive belt by releasing the tensioner pulley and installing belt.
Install the lower splash shield and lower vehicle.
Tighten water pump pulley mounting bolts to 18 ft. lbs. (24 Nm).
Adjust the water pump drive belt tension and tighten alternator adjustment bolt to 17 ft. lbs. (23 Nm).
Install the air cleaner assembly.
Refill the cooling system.
Connect the negative battery cable.
Start the engine and allow it to reach operating temperature. Check for leaks and refill cooling system as necessary.
I'm going to assume you have the 4WD model..here are the instructions for removal and install:
Drain the cooling system.
Remove or disconnect the following:
Negative battery cableLower splash shieldUpper and lower radiator hosesCoolant reservoir tank hoseFresh air ductFan and shroudLoosen the alternator mounting and adjusting boltsAlternator beltFan pulley and bracketUpper and lower timing belt covers and turn the crankshaft until No. 1 cylinder is at Top Dead Center (TDC).Loosen the tensioner lockbolt and pry the tensioner away from the beltTiming beltLoosen the tensioner boltWater pumpTensioners from the water pump
To Install:
Clean the surface of any old gasket material.
Install or connect the following:
Tensioners on the water pumpWater pump and gasket. Torque the bolts to 19 ft. lbs. 25 Nm).Timing beltLoosen the tensioner lockbolt and allow the tensioner to rest
against the belt. Torque the tensioner lockbolt to 32 ft. lbs. (43 Nm).Upper and lower timing belt coversFan bracket assembly and fan pulleyDrive beltCooling fan and shroudPosition the radiator and torque the bracket bolts to 89 inch lbs. (10 Nm).Torque the shroud bolts to 89 inch lbs. (10 Nm) and torque the alternator adjusting and mounting boltsPosition the fresh air duct over the radiator and tighten the retaining bolt 89 inch lbs. (10 Nm)Radiator hoses and tighten the clampsLower splash shieldNegative battery cable
Fill the cooling system.
Start the vehicle and bring the engine to operating temperature. Check for leaks and repair if necessary.
5.0L, 5.8L and 7.5L Engines See Figures 1, 2, 3, 4 and 5
Fig. Fig. 1: Removing the pulley from the water pump shaft may be easier if you use belt tension to hold the pulley
Fig. Fig. 2: Loosen the clamp and remove the hoses at the water pump
Fig. Fig. 3: Unbolt the water pump from the timing chain cover
: Remove the water pump from the timing chain cover : Make sure the gasket mating surfaces are clean and dry
Drain the cooling system.
CAUTION
When draining the coolant, keep in mind that cats and dogs are
attracted by ethylene glycol antifreeze and are quite likely to drink
any that is left in an uncovered container or in puddles on the ground.
This will prove fatal in sufficient quantity. Always drain the coolant
into a sealable container. Coolant should be reused unless it is
contaminated or several years old.
Remove the bolts securing the fan shroud to the radiator, if so equipped and position the shroud over the fan.
Disconnect the lower radiator hose, heater hose and by-pass hose
at the water pump. Remove the drive belt(s), fan, fan spacer and
pulley. Remove the fan shroud, if so equipped.
Loosen the alternator pivot bolt and the bolt attaching the
alternator adjusting arm to the water pump. If applicable, remove the
power steering pump bracket from the water pump and position it out of
the way.
t may be easier to remove the pulley from the water pump shaft by using belt tension to hold the pulley prior to removal.
Remove the bolts securing the water pump to the timing chain cover and remove the water pump.
To install:
Coat a new gasket with sealer and install the water pump. Tighten the bolts to 18 ft. lbs. (24 Nm).
Install the power steering pump bracket.
Connect the lower radiator hose, heater hose and by-pass hose at the water pump.
Install the fan shroud, if so equipped.
Install the pulley, fan spacer, fan and drive belt(s).
I've found the Haynes Repair Manual that you can get at Auto Zone to be the best one there is. They have step by step instructions with pictures on repairing or replacing just about anything on your auto. You can get them for around $20 - 25. Is yours a 3 or 4 cylinder? Auto Zone has a new service where you can actually look up repair instructions for your vehicle with pictures. Here's the instructions for a 3 cylinder for your year, make and model:
Disconnect the negative battery cable.
Drain the cooling system.
CAUTIONWhen
draining the coolant, keep in mind that cats and dogs are attracted by
the ethylene glycol antifreeze, and are quite likely to drink any that
is left in an uncovered container or in puddles on the ground. This
will prove fatal in sufficient quantity. Always drain the coolant into
a sealable container. Coolant should be reused unless it is
contaminated or several years old.
Remove the air cleaner assembly.
Loosen but do not remove the four coolant pump pulley bolts.
Raise and support the vehicle safely.
Remove the lower splash shield.
Remove the air conditioner compressor drive belt.
Remove the lower alternator cover plate bolts, loosen the alternator adjusting bolt and remove the drive belt.
Remove the crankshaft pulley.
Remove the coolant pump pulley.
Remove the timing belt.
Remove the oil level dipstick and guide tube.
Remove the alternator adjusting bracket from the water pump.
Remove the water pump rubber seals.
Remove the water pump mounting bolts and nuts. Remove the water pump from the vehicle.
Timing Belt
Removal & Installation
SOHC
To Remove: 
Water pump assembly showing rubber seal location
I have the same car and the same problem. Metal to metal screeching sound when I start the car in the morning. Disappears when the water temperature is at its normal running temperature. If I switch the heating system off, the noise goes. My mechanic says he changed all the belts and doesn't know what causes the noise. Only way is to open up the engine, he says. But the car runs wonderfully well, the engine seems fine to me and this five months after the screeching started. So, in my opinion, the engine is fine. I love my car and drive it every day. Does anyone out there have a solution ? Thanks in advance for your help. George
I had a similar noise twice, first time the local jag dealer replaced the supercharger after telling me it was the front bearing on that and only solution was a new blower :(. second time, different jag dealer exact same noise, they replaced the supercharger drive belt worked perfect.
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