Question about 1989 Honda Prelude

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Alternator How can I adjust the alternator because the belt connecting from engine to alternator and AC is to loose?

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There are 2 bolts that hold the alternator in position. One bolt is near the top of the alternator, the other is near the bottom. The bottom bolt threads through the end of the ADJUSTMENT bolt (which is at a 90 degree angle to this mounting bolt, and faces threaded end w/ adjustment nut to alternator). Loosen 2 mounting bolts, adjust tension at adjustment nut (near alternator), tighten 2 mounting bolts (upper bolt 33 ft lbs, Lower mounting bolt 18 ft lbs). countrycurt0

Posted on Sep 13, 2008

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Alternator


Inspect/Test/Service/Replace Follow service manual procedures given by the manufacturer for the generator you are working on for disassembling, inspecting, testing, and rebuilding AC generators. Remember, improper connections to an AC generator can destroy it.
AC generator removal varies according to the engine size, engine placement, and vehicle accessories (such as power steering and air conditioning). The following is the typical procedure for removal and replacement of the AC generator.
  • Place fender covers over the fenders
  • Disconnect the battery ground cable

CAUTION
Never attempt to remove the alternator or disconnect any wires to the alternator without first disconnecting the battery negative cable.It's a good practice to wrap the cable with tape or insert the cable inside a rubber hose to prevent accidental contact with the battery terminal.Always wear safety glasses when working around the battery.

  • Disconnect and label the wiring harness connections to the alternator (Painters Masking tape works very well for labeling Automotive wiring).
  • Loosen the alternator pivot bolt.
  • Remove the bolt that attaches the alternator to the adjustment arm.
  • Rotate the alternator to loosen the drive belt and disengage the belt from the pulley. Be careful that any spacers that are used in mounting are kept with their original bolts. This will make correct reinstallation much easier.
  • While supporting the alternator remove the pivot bolt.
  • Remove the alternator from the vehicle.
To reinstall the alternator, reverse the removal procedure.
To adjust the belt tension, leave the pivot and adjusting arms loose. Look up the belt tension specification for the vehicle you are working on. Using a belt tension gauge on the belt apply pressure to the alternator until the correct belt tension registers on the gauge and tighten the mounting and adjustment bolts to the specified torque specification.

CAUTION
Over tightening of the alternator drive belt will cause the unit to whine and premature failure of the alternator drive end bearing, the water pump or the engine crankshaft

May 25, 2012 | 2006 Ford Escape

2 Answers

BMW 318i M46 belt tensioning




adjust ur belt by following steps
now that you know where the components are these components are driven by a belt. So when you turn your AC on there’s a belt that’s driving the AC compressor, when you turn the stirring wheel and you have that nice that easy feel of turning the stirring wheel when you’re parallel parking your car that’s the power stirring pump doing its job. Your alternator is keeping the battery charged, the lights on and the engine running. So I want to show you where the belts are, what they look like, how to adjust them and how to tell a bad belt from a good belt. As you can see these are your drive belts, this is the AC drive belt it drives the AC compressor, this is the alternator drive belt it drives the alternator, if you look down here you can see this is where the adjustment is on that AC compressor belt, if you look right here this is the top adjusting bolt for adjusting the alternator either up or down to tighten or loosen the belt. There’s a bolt down here that locks the alternator in place and this bolt is the pivot bolt for the alternator. So if you’re going to let’s say remove your alternator belt you’d have to remove these covers, loosen this bolt, loosen this bolt that’s underneath this cover and adjust this bolt to either lower the alternator or raise the alternator, if you’re belt was too loose you’ll pull up on the alternator, if the belt was too tight you’ll



Sep 22, 2008 | 2001 BMW 330

1 Answer

I am having a hard time removing my alternator bracket for dodge grand caravan 2002


Inspect/Test/Service/Replace Follow service manual procedures given by the manufacturer for the generator you are working on for disassembling, inspecting, testing, and rebuilding AC generators. Remember, improper connections to an AC generator can destroy it.
AC generator removal varies according to the engine size, engine placement, and vehicle accessories (such as power steering and air conditioning). The following is the typical procedure for removal and replacement of the AC generator.
  • Place fender covers over the fenders
  • Disconnect the battery ground cable

CAUTION
Never attempt to remove the alternator or disconnect any wires to the alternator without first disconnecting the battery negative cable.It's a good practice to wrap the cable with tape or insert the cable inside a rubber hose to prevent accidental contact with the battery terminal.Always wear safety glasses when working around the battery.

  • Disconnect and label the wiring harness connections to the alternator (Painters Masking tape works very well for labeling Automotive wiring).
  • Loosen the alternator pivot bolt.
  • Remove the bolt that attaches the alternator to the adjustment arm.
  • Rotate the alternator to loosen the drive belt and disengage the belt from the pulley. Be careful that any spacers that are used in mounting are kept with their original bolts. This will make correct reinstallation much easier.
  • While supporting the alternator remove the pivot bolt.
  • Remove the alternator from the vehicle.
To reinstall the alternator, reverse the removal procedure.
To adjust the belt tension, leave the pivot and adjusting arms loose. Look up the belt tension specification for the vehicle you are working on. Using a belt tension gauge on the belt apply pressure to the alternator until the correct belt tension registers on the gauge and tighten the mounting and adjustment bolts to the specified torque specification.

CAUTION
Over tightening of the alternator drive belt will cause the unit to whine and premature failure of the alternator drive end bearing, the water pump or the engine crankshaft

May 19, 2012 | 2002 Dodge Grand Caravan

1 Answer

I am trying to change my 2001 Mitsubishi Mirage (w/ ac) alternator belt. I loosened the tensioner, took out the top - bottom and inside bolt of the ac compressor to take off the first belt and even took...


BEFORE ADJUSTING THE ALTERNATOR BELT DISCONNECT THE NEGATIVE BATTERY CABLE OR YOU MIGHT BLOW AN EXPENSIVE HIDDEN FUSE.
I would replace the steering pump belt at the same time you do the alternator belt (buy both).
To take off the alternator belt .
First , take off the negative battery cable so you do not blow an expensive fuse on the positive battery cable clamp(or a block fuse under the hood). Facing the back of the automobile , reach UNDER the alternator and loosen the bolt on the bottom right side, now loosen the bolt on the adjuster block on top, you can now turn the adjuster bolt and move the alternator to change the belt.
To take off the steering pump belt on the front of the motor, you need to loosen the nut on the back side of the pulley (right side of pump mount), the nut holds the adjuster pulley in place . With the adjuster pulley nut loose , you can use the adjuster bolt to move the pulley to adjust/take off the steering pump belt.

Jun 04, 2011 | 2001 Mitsubishi Mirage

1 Answer

Changing alternator



REMOVAL & INSTALLATION 2.2L Engines
CHRYSLER ALTERNATOR

  1. Disconnect the negative battery cable.
  2. Label and disconnect the wiring (for easy installation).
  3. Remove the air conditioning compressor drive belt, if equipped.
  4. Loosen the alternator adjusting bracket bolt and adjusting bolt. Remove the alternator belt.
  5. Remove the bracket and mounting bolts.
  6. Remove the pivot bolt and nut.
  7. Lift the alternator from the vehicle.

When lifting the alternator out of the vehicle on some years with A/C, clearance may be restricted by the condenser cooling fan assembly or the A/C compressor and mounting bracket assembly, if so, removal of one of these items will be necessary.
To install:
  1. Position the alternator against the engine.
  2. Install the pivot bolt and nut.
  3. Install the mounting bracket bolts, and adjusting bolt.
  4. Install drive belts and adjust to specification.
  5. Tighten all the mounting bolts and nuts.
  6. Connect all alternator terminals.
  7. Connect the negative battery cable.

BOSCH ALTERNATOR
  1. Disconnect the negative battery cable.
  2. Disconnect the wiring and label for easy installation.
  3. Remove the air conditioning compressor drive belt.
  4. Loosen the alternator adjusting bracket locknut and adjusting screw. Remove the alternator belt.
  5. Remove the bracket locknut and mounting bolt.
  6. Remove the pivot bolt and nut.
  7. Remove the alternator from the engine.

To install:
  1. Position the alternator against the engine.
  2. Install pivot bolt and nut.
  3. Set the mounting bracket in place and install the bracket mounting bolt and locknut.
  4. Install the drive belts and adjust to specification.
  5. Tighten all the mounting bolts and nuts.
  6. Connect all alternator terminals.
  7. Connect the negative battery cable.

Jan 02, 2011 | 1994 Plymouth Voyager

1 Answer

What do i do to get new belt on


FOR THE 3.0L ENGINE IF YOU REPLACE AC BELT LOOSEN TOP IDLER PULLEY CENTER BOLT. IF YOU REPLACING ALTERNATOR AND WATER PUMP BELT LOOSEN ALTERNATOR ADJUSTMENT BOLT AND PIVOT BOLT.IF REPLACING POWER STEERING PUMP BELT LOOSEN POWER STEERING PUMP ADJUSTMENT BOLT AND MOUNTING BOLTS.****** FOR THE 2.4L ENGINE TO REMOVE POWER STEERING BELT LOOSEN TOP IDLER PULLEY.FOR ALTERNATOR AND WATER PUMP BELT LOOSEN ALTERNATOR ADJUSTER BOLT, PIVOT AND MOUNTING BOLTS.FOR AC COMPRESSOR LOOSEN LOWER IDLER PULLEY.

Oct 07, 2010 | 1996 Nissan Pickup

1 Answer

How many labor hours will it take to install a new alternator in my jeep grand cherokee?


How to Replace an Alternator (DIY Time: 2.5 hours)
Complexity: Moderate

Parts:
1. Alternator - $151.95

Tools:
1. Combination Wrench Set
2. Screwdriver
3. Multimeter
4. Serpentine Belt Tool
5. 3/8 in. Drive Ratchet
6. Socket Set

Steps:
Step 1 Open the hood and locate your vehicle’s alternator.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.
o Tip: Always make sure the struts on the hood can fully support the weight of the hood so that it does not close on you while working. The use of a hood prop can securely hold it in place.

Step 2 Using your digital multi-meter, check the battery voltage. A dead battery will usually have less than 9 volts. This would not be enough power to start most vehicles.

Step 3 To verify that your alternator is bad, make sure your battery is fully charged and can pass a load test.

Step 4 With the good battery installed, connect your digital multi-meter across the battery terminals with the engine turned off. A good battery should read between 12-13 volts.

Step 5 Start your engine and read the digital multi-meter’s output. The voltage should rise near 13.5-14.5 volts.

Step 6 Using an open end wrench, disconnect the battery’s negative cable.
o Tip: When disconnecting battery cables, be sure to always disconnect the negative cable first and do not allow it to come in contact with the negative terminal post while working on the vehicle.
o Tip: Wrap the battery cable with a shop towel and pull it away from the battery terminal.

Step 7 Disconnect the power and ground wires on the back of the alternator paying close attention to where each wire connects. Disconnect the wiring harness connector.
o Tip: Check for a loose wiring harness connector, cracked wire insulation, and corroded terminals. Replacing the wiring harness may be necessary.

Step 8 Loosen the alternator bracket bolts, and alternator adjusting bolts or alternator belt tensioner so that you can remove the alternator drive belt.

Step 9 Using the proper size socket and ratchet, remove the alternator mounting bolts, spacer (if equipped), adjusting bolt, lower pivot bolt (if equipped), and the alternator.

Step 10 Install new alternator.

Step 11 Using the proper size socket and ratchet, loosely install the alternator mounting bolts, spacer (if equipped), adjusting bolt and lower pivot bolt (if equipped).

Step 12 Install the alternator belt.
o Tip: When installing the alternator belt, make sure the alternator belt is fully seated in the groove of the pulleys.

Step 13 Pull the alternator until the alternator belt is tight.

Step 14 Tighten the alternator mounting bolts while gently moving the alternator unit to achieve proper alternator belt tension.

Step 15 Reinstall the power and ground wires to alternator. Install the wiring harness connector.

Step 16 Push down in the middle of the alternator belt to check belt tension. If the alternator belt moves more than a half an inch, it is too loose, adjust the alternator belt to proper tension before proceeding to next step.

Step 17 Now that the alternator belt has been installed and adjusted, reconnect the negative battery cable. Start the engine and check the battery voltage to verify proper alternator charging.

Step 18 Turn off the engine and recheck the alternator belt tension. Readjust the alternator belt tension if needed.


Good luck (remember comment and rated this).

Apr 19, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Changing alternator


REMOVAL & INSTALLATION
2.2L Engines
CHRYSLER ALTERNATOR
  1. Disconnect the negative battery cable.
  2. Label and disconnect the wiring (for easy installation).
  3. Remove the air conditioning compressor drive belt, if equipped.
  4. Loosen the alternator adjusting bracket bolt and adjusting bolt. Remove the alternator belt.
  5. Remove the bracket and mounting bolts.
  6. Remove the pivot bolt and nut.
  7. Lift the alternator from the vehicle.
When lifting the alternator out of the vehicle on some years with A/C, clearance may be restricted by the condenser cooling fan assembly or the A/C compressor and mounting bracket assembly, if so, removal of one of these items will be necessary.

To install:

  1. Position the alternator against the engine.
  2. Install the pivot bolt and nut.
  3. Install the mounting bracket bolts, and adjusting bolt.
  4. Install drive belts and adjust to specification.
  5. Tighten all the mounting bolts and nuts.
  6. Connect all alternator terminals.
  7. Connect the negative battery cable.

BOSCH ALTERNATOR

  1. Disconnect the negative battery cable.
  2. Disconnect the wiring and label for easy installation.
  3. Remove the air conditioning compressor drive belt.
  4. Loosen the alternator adjusting bracket locknut and adjusting screw. Remove the alternator belt.
  5. Remove the bracket locknut and mounting bolt.
  6. Remove the pivot bolt and nut.
  7. Remove the alternator from the engine.
To install:
  1. Position the alternator against the engine.
  2. Install pivot bolt and nut.
  3. Set the mounting bracket in place and install the bracket mounting bolt and locknut.
  4. Install the drive belts and adjust to specification.
  5. Tighten all the mounting bolts and nuts.
  6. Connect all alternator terminals.
  7. Connect the negative battery cable.

2.5L Engines
2.5L engines were equipped with either Chrysler or Bosch alternators.

  1. Disconnect the negative battery cable.
  2. Remove the drive belts.
  3. Remove the adjusting bracket-to-engine mounting bolt.
  4. Remove the adjusting locking bolt and nut, then remove the mounting bracket.
  5. Position the alternator to gain access to the wiring.
  6. Disconnect the wiring and label for easy installation.
  7. Remove the pivot bolt, nut, and washers.
  8. Remove the alternator assembly from the engine.
To install:
  1. Position the alternator assembly against the engine.
  2. Loosely install the pivot bolt, washers, and nut.
  3. Attach all wiring connectors to the alternator.
  4. Position the mounting bracket in place, then install engine mounting bolt.
  5. Loosely install the adjusting locking bolt and nut.
  6. Install the drive belts, and adjust to specification.
  7. Tighten all mounting bolts and nuts.
  8. Connect the negative battery cable.

2.6L Engines
2.6L engines were equipped with Mitsubishi alternators.
  1. Disconnect the negative battery cable.
  2. Disconnect the wiring and label for easy installation.
  3. Remove the adjusting strap mounting bolt.
  4. Remove the drive belts.
  5. Remove the support mounting bolt and nut.
  6. Remove the alternator assembly.
To install:
  1. Position the alternator assembly against the engine, then install the support bolt.
  2. Install the adjusting strap mounting bolt.
  3. Install the alternator belts and adjust to specification.
  4. Tighten all the support bolts and nuts.
  5. Connect all of the wiring terminals to the alternator.
  6. Connect the negative battery cable.

3.0L Engines
The 3.0L engines were equipped with either the Nippondenso or Bosch alternators.
  1. Disconnect the negative battery cable.
  2. Install a 1 / 2 in. breaker bar in the tensioner slot. Rotate counterclockwise to release belt tension and remove poly-V belt.
  3. Remove the alternator mounting bolts (2).
  4. Remove the wiring and remove alternator.
To install:
  1. Position the alternator onto the engine, then install the wiring.
  2. Set the alternator against the mounting bracket and install the mounting bolts.
  3. Rotate the tensioner counterclockwise and install poly-V belt.
  4. Connect the negative battery cable.

3.3L and 3.8L Engines
The 3.3L and 3.8L engines were equipped with the Nippondenso alternators.
  1. Disconnect the negative battery cable.
  2. Remove the alternator drive belt, by relieving the tension on the dynamic tensioner.
  3. Loosen the nut on the support bracket at the exhaust manifold, do not remove it.
  4. Remove the alternator tensioner/power steering bracket bolt.
  5. Remove the tensioner stud nut and remove the tensioner.
  6. Remove the alternator mounting bolts.
  7. Remove the power steering reservoir from the mounting bracket, do not disconnect the hoses, and position it out of the way.
  8. Remove the alternator support bracket bolts. Remove the intake plenum to alternator bracket bolt and remove the alternator support bracket from the engine.
  9. Remove the alternator from the engine and disconnect the electrical leads.
To install:
  1. Install the alternator in position on the engine and connect the electrical leads.
  2. Install the alternator support bracket, tighten the retaining bolts to 40 ft. lbs. (54 Nm).
  3. Install the power steering reservoir on the mounting bracket.
  4. Install the alternator mounting bolts, tighten the bolts to 40 ft. lbs. (54 Nm).
  5. Install the tensioner and tensioner mounting stud. Install the retaining nut on the exhaust manifold.
  6. Install the alternator belt, insert a 1 / 2 in. extension into the square hole in the tensioner and turn the tensioner. Tighten the tensioner bolt.
  7. Connect the negative battery cable.

Hope this help (remember comment and rated this).

Apr 01, 2010 | 1994 Dodge Caravan

1 Answer

How to remove alternator from 1997 Chrysler Concorde?


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3.3L Engine

  1. Disconnect the battery negative - cable.
b9a39c6.jpg

Fig. Wiring and nut locations



  1. Disconnect the alternator field circuit plug.
  2. Remove the B+ terminal nut and wire.
  3. Loosen the adjusting T-bolt, but do not remove it.
  4. Loosen the pivot bolt, but do not remove it either.
  5. Remove the alternator drive belt.
  6. Remove the adjusting T-bolt, pivot bolt, and mounting bolt, be careful not to loose the spacer.
  7. Remove the alternator.
To install:
  1. Attach the alternator to the support bracket. Tighten all bracket and alternator (except for the wiring nuts) bolts to 40 ft. lbs. (54 Nm).
  2. Install the B+ terminal nut and wire and tighten to 75 inch lbs. (9 Nm).
  3. Install the drive belt onto the alternator pulley. Make certain that the belt is seated correctly on the pulley.
  4. Connect the negative - battery cable.

3.5L Engine

  1. Disconnect the negative battery cable.
  2. Loosen the lower mounting bolt but do not remove it.
  3. Loosen the pivot bolt, but do not remove it.
3260271.jpg

  1. Loosen the belt adjusting bolt.
  2. Remove the alternator drive belt.
  3. Remove the bracket.
  4. Remove the lower mounting bolt and pivot bolt.
  5. Remove the alternator.
  6. Disconnect the alternator field circuit plug.
  7. Remove the B+ terminal nut and wire.
To install:
  1. Attach the alternator and bracket to the engine, then tighten the mounting bolts to 40 ft. lbs. (54 Nm).
  2. Install the drive belt onto the alternator pulley. Make certain that the belt is seated correctly on the pulley.
  3. Install and tighten the B+ terminal nut and wire to 75 inch lbs. (9 Nm) onto the new alternator.
  4. Connect the alternator field circuit plug.
  5. Connect the negative battery cable.
Hope helped with this (remember rated this help) Good luck.

Nov 03, 2009 | 1997 Chrysler Concorde

2 Answers

How do I pull out an alternator on a 2000 Mercury Cougar V6?


Follow service manual procedures given by the manufacturer for the generator you are working on for disassembling, inspecting, testing, and rebuilding AC generators. Remember, improper connections to an AC generator can destroy it.
AC generator removal varies according to the engine size, engine placement, and vehicle accessories (such as power steering and air conditioning). The following is the typical procedure for removal and replacement of the AC generator.
  • Place fender covers over the fenders
  • Disconnect the battery ground cable
CAUTION Never attempt to remove the alternator or disconnect any wires to the alternator without first disconnecting the battery negative cable.
  • Disconnect and label the wiring harness connections to the alternator (Painters Masking tape works very well for labeling Automotive wiring).
  • Loosen the alternator pivot bolt.
  • Remove the bolt that attaches the alternator to the adjustment arm.
  • Rotate the alternator to loosen the drive belt and disengage the belt from the pulley. Be careful that any spacers that are used in mounting are kept with their original bolts. This will make correct reinstallation much easier.
  • While supporting the alternator remove the pivot bolt.
  • Remove the alternator from the vehicle.
To reinstall the alternator, reverse the removal procedure.
To adjust the belt tension, leave the pivot and adjusting arms loose. Look up the belt tension specification for the vehicle you are working on. Using a belt tension gauge on the belt apply pressure to the alternator until the correct belt tension registers on the gauge and tighten the mounting and adjustment bolts to the specified torque specification.

Nov 08, 2008 | 2000 Mercury Cougar

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