Question about 2004 Ford Taurus

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Cannot get the nut in front of the pulley at the bottom of the engine (in front of the harmonic balancer) to break loose????

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  • Master
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First spray liberally with RP7/WD40 with a little extra every half hour or so and allow to soak for a few hours. Set Socket Spanner on Nut in a position where the end of the handle is wedged securely against a solid part of the Engine/Body. Remove the Coil lead from the distibutor and Crank the engine with the starter with very, very short bursts. It may take several attempts as the socket tends to jump off at each attempt. If that fails the other option is to remove the starter motor and lock the flywheel to prevent the crank turning

Posted on Aug 21, 2010

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  • Ford Master
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Easy to do but extremely dangerous ,if you are changing the timing belt then slacken adjuster on the belt then remove the rocker cover and slacken the cam bearing caps so the camshaft is completely loose and not touching any valves ,then put a socket on the bottom pulley with a knuckle bar jammed in the suspension and turn key,the reason for removing the cam is because the bottom pulley doesnt have a keyway anymore and if you try to undo it like this without locking the crank with a special tool and using a big bar then as the starter motor undoes the nut it releases the pressure on the pulley and the cam bely pulley turns and you smash valves into the pistons

Posted on Aug 21, 2010

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alicantecoli
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SOURCE: The pulley at the bottom

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Posted on Aug 21, 2010

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1 Answer

Bottom cog on front of engine has come off and the belt is loose


I would suggest that you ask the question again but be exact in your description of the problem
the cog is behind the harmonic pulley and either drives a chain, another cog or a timing belt
the cog ( what you may be referring to is the harmonic balancer pulley and that drives the fan. alternator which would equate to a loose belt because the pulley has separated from the pulley hub
A clear photo would be a big help

Jun 23, 2015 | Cars & Trucks

1 Answer

Do I have to remove crankshaft pulley to remove engine front cover (timing cover) on a 2008 mercury mountaineer all wheel drive 4.0L


If it is an aluminium housing I would say you have to . If there is a nut holding the harmonic balancer on use a 1/2 rattle gun(impact) and undo nut . You will not be able to hold the crank any other way. Use a harmonic balance puller to pull the pulley. Wat6ch for the crank key as you pull it off. I think that there may be a more sinster problem awaiting you as the cover covers the chain or gears and has no water behind it except what leaks through the back of the cover from corrosion holes behind the water pump impellor.. Do the nut up with the impact gun. You may have to remove the radiator to get enough space to work on the cover.

Mar 31, 2013 | Cars & Trucks

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Where is the crankshaft sensor on a 3.8L in a 97 buick lesaber


Hi,
The sensor is located to the right of the crankshaft behind the vibration dampner (harmonic balancer). You will need a balancer puller and a special tool to space the new sensor correctly.
(can be done also with eye spacing, but the tool is recommended to ensure proper spacing as to prevent damage to new sensor and / or harmonic balancer.) You will also need a strap wrench to hold balancer pulley in place while removing and re-installing balancer to crankshaft bolt. (helper required)

Procedure for replacement:
Remove negative battery cable.
Set parking (emergency) brake.
Release tension on serpentine drive belt and remove belt from harmonic balancer pulley. ( large pulley at bottom of engine)
Break loose lug nuts on passenger side front tire, do not remove bolts yet.
Raise and support vehicle on passenger side, remove wheel.
Remove plastic splash guard (cover) from passenger side wheel well.
Remove dampner / balancer center retaining bolt (counterclockwise, it is torqued very tight.) Use a strap wrench around pulley and have a helper hold that in place while using a 1/2" breaker bar and socket to turn pulley bolt out of crankshaft. Be careful not to rotate engine in a counterclockwise direction while breaking the bolt loose.
Using balancer puller, remove dampner / balancer pulley from engine.
You will now see the crank sensor to the right of the crankshaft bolted to the timing cover.
Disconnect sensor wiring and remove retaining bolts, remove sensor.
Put new sensor in place and screw in bolts, do not tighten them yet.
Reconnect wiring to sensor.
Now use special tool to properly space sensor. If you cannot find one at the parts store, you can space the sensor with the balancer pully held in place (not installed yet) and space the sensor evenly with the veins on the hub of the balancer pulley. Take your time and be sure it is as evenly spaced as possible.
Tighten sensor bolts.
Clean balancer hub free of any oil and dirt deposits using brake or carbeurator cleaner.
Reinstall balancer to crankshaft by tapping around the inner surface of pulley with a rubber hammer.
It is a press fit, so be sure you have it started evenly and progress slowly in a circular motion to ensure you are keeping it aligned straight with the crankshaft.
Reinstall balancer bolt using the same method as removal, torque bolt to 110 foot pounds, then tap around balancer again twice with rubber hammer, turn the engine 2 full revolutions clockwise using the balancer to crankshaft bolt, then tighten bolt an additional 1/4 turn.
Replace splash guard, put wheel on tightening lugs to finger tight and then wrench tight in a star pattern.
Lower vehicle until wheel makes contact with floor, tighten lug nuts to 115 foot pounds in a star pattern using a torque wrench.
Fully lower vehicle, remove jack.
Re-install serpentine drive belt
Re-connect negative battery cable.

End of procedure....Hope that helps!.....Mike

Jun 25, 2011 | 1997 Buick LeSabre

2 Answers

The biggest wheel under the belt is vibrating ad making alot of noise. How long do i have before i break down? and is it the harmonic balancer?


by biggest wheel under the belt are you talking about the lowest wheel on the motor at the bottom of the motor then it is the harmonic balancer the rubber dampener material between the outer and inner metal balancer is coming apart.you should get this replaced as soon as possible.if it separates completely it can cause alot of damage to other components and cost more money to repair the damage

Mar 04, 2011 | 1995 Buick Regal

1 Answer

Clunking noise front of 03 escape starting out and turning sounds like loose exhaust


look at the bottom pulley where the belts go, check for wobbly pulleys while engine is running.look for inward@outward movemant of bottom pulley. the harmonic balancer may be going bad. hope this helps!!!

Sep 19, 2010 | Ford Escape Cars & Trucks

1 Answer

What is the procedure on removing an alternator from a 2001 Taurus with a duratec engine?


Okay, on your engine, the alternator is mounted below the rear cylinder bank of the engine, at the rear of the engine compartment. It'll be easier to access it from the driver's side front fenderwell (take off the right front tire then the plastic lining) or under the car. You might want to go ahead and remove both the liner and work from underneath as you'll need to remove your crankshaft pulley.

1: Disconnect the negative batery cable.

2: Disconnect the electrical connections from the alternator. The output wire is secured by a nut on the output terminal.

3: Revove the serpentine/drive belt.

4: Remove two bolts and one stud bolt that secure the alternator to it's bracket. Remove the crankshaft pulley.

Installation is reverse of removal.

After installing the alternator, reinstall the drivebelt and reconnect the negative battery cable.

To remove the crank-shaft pulley

1: As you'll aready have the wheel, liner, negative battery cable, and serpentine/drivebelt removed, as well as the car on jackstands, I'll omit those steps.

2: Remove the driveplate access cover and hold the ring gear teeth with a large scredriver or pry bar to prevent the crankshaft from turning.

3: Remove the nuts that secure the pullley bracket to the engine front cover. Remove the pulley and bracket.

4: The crankshaft pulley screws into the harmonic balancer with a left hand thread (reverse threaded so rightly loosey lefty tighty). Trun the crankshaft pulley clockwise to loosen and remove it.

5: Hopefully this is where you'll end with the pulley. The harmonic balancer is no fun to remove, but let me know if you need to know this too. After you have your alternator installed, put the pulley back onto the harmonic balancer before installing the serpentine/ drive belt.

Hope this info helps.

Jun 26, 2009 | 1999 Ford Taurus

2 Answers

Waterpump replacement


if u are replacing the water pump u dont need to remove the harmonic balacer

May 27, 2009 | 1992 Honda Accord

1 Answer

Harmonic balancer


You'll have to remove the drive belt. Remove the lower pulley and large bolt in the center of the balancer. If the bolt is on really tight, remove a spark plug, move the piston to the bottom of the cylinder by turning the engine, stuff a bunch of rope in the spark plug hole, as much as you can. Now turn the engine counter-clockwise and the center bolt will break loose for you. Once the bolt has broken loose, rotate the engine clockwise again just enough to remove the rope. Remove the balancer bolt and get a balancer removal tool and pull the balancer off.

Jul 01, 2008 | 1997 Ford Thunderbird LX

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