Question about 1990 Chevrolet C2500

1 Answer

Trying to remove alternator/ a/c compressor bracket

I am trying to remove these brackets so that I can remove the heads off of the engine. I have a 1990 Chevy 2500 with the V8. It looks like a star bit, but when I try to un bolt it, it starts to strip.

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  • autoshopazn
    autoshopazn May 10, 2009

    its looks like an torx socket is what I should use. But it was not working. You wouldn't happen to know the size that i need?

  • autoshopazn
    autoshopazn May 10, 2009

    would you know what size?

  • mike loshbough
    mike loshbough May 11, 2010

    there are nuts on this stud you cant see

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  • Master
  • 272 Answers

Not star (allen wrench) its a 'torx' fitting.
Trying to remove alternator/ a/c compressor bracke - xxxw-lis27740.jpg

Posted on May 10, 2009

  • rjbeg123 May 10, 2009

    Sorry it didn't accept the picture I sent. They come in three sizes, allen wrenches will strip them, they are widely available all hardware stores have them. Good luck!

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1 Answer

How do you remove the alternator bracket


Go to autozone website. Make a free account, put in the year, make and model, look for the free repair guides. If you are having trouble with the alternator though, I am very concerned about you working on the AC

Jun 25, 2014 | 2003 Ford Windstar

1 Answer

Im trying to change my alternator on my 97 chrysler sebring coupe lxi but it seems impossible to do it without taking other parts off to get it out and also put the new one in because its real compact


Hi there:
Check this procedure on 2.5L (VIN N) Engine...


  1. Disconnect the negative battery cable.
  2. Remove the right side under cover.
  3. Remove the speed control vacuum reservoir and related components as required for alternator access.
  4. Remove the power steering pump cover.
  5. Remove the A/C compressor drive belt.
  6. Remove the alternator/power steering pump drive belt.
  7. Remove the intake manifold plenum.
  8. Remove the upper alternator bracket.
  9. Remove the intake manifold plenum stay.
  10. Detach the electrical connections at the alternator.
  11. Unfasten the upper and lower bolts and remove the alternator. Be very careful not to damage neighboring components while removing the alternator.


8_22_2012_2_51_45_pm.gif

Fig. 8: Alternator assembly installation-2.5L engine (VIN N) - Zoom Image link HERE


To install:

  1. Connect the wiring to the alternator.
  2. Place the alternator on its lower bracket and install the upper and lower bolts finger-tight.
  3. Install the upper alternator bracket.
  4. Install the alternator/power steering pump belt, making sure it is properly seated.
  5. Adjust the drive belt to the correct tension using the belt adjuster, then tighten the upper mounting bolt to 16 ft. lbs. (22 Nm) and the lower mounting bolt to 30 ft. lbs. (41 Nm).
  6. Install the intake manifold plenum.
  7. Install the intake manifold plenum stay.
  8. Install the A/C compressor drive belt.
  9. Install the power steering pump cover.
  10. Connect the negative battery cable.
  11. Check the charging system operation.



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

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Aug 22, 2012 | Cars & Trucks

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

NEED HELP WITH TORQUE SPECS ON 1998 CHEVROLET SURBURBAN CYLINDER HEADS 5.7


Cylinder Head Removal & Installation 5.7L Engine To Remove:
  1. Disconnect the negative battery cable.
  2. Drain the engine coolant.
  3. Remove the air cleaner assembly.
  4. Remove the upper radiator hose.
  5. Remove both heater hoses.
  6. Disconnect spark plug wires at distributor cap.
  7. Remove distributor cap.
  8. Remove the coolant bypass hose from the water pump.
  9. Remove the drive belt. NOTE: It is not necessary to evacuate the A/C refrigerant.
  10. Remove the A/C compressor from the mounting bracket and set it aside.
  11. Remove the wiring bracket from the rear of the cylinder head.
  12. Disconnect the accessory bracket and slide forward.
  13. Remove the upper and lower intake manifold.
  14. Remove the exhaust manifolds.
  15. Remove the valve rocker arms and pushrods.
  16. Remove the power steering pump pulley.
  17. Disconnect the electrical connector from the power steering pump.
  18. Remove nuts attaching the power steering pump to the engine.
  19. Remove power steering pump mounting bracket bolts and nut.
  20. Slide power steering pump/bracket assembly forward and remove stud.
  21. Set power steering pump/bracket assembly aside.
  22. Disconnect the wiring bracket from rear of the right cylinder head.
  23. Remove the generator.
  24. Remove the oil indicator tube bracket bolt.
  25. Remove the generator mounting bracket.
  26. Remove the sixteen cylinder head bolts.
  27. Remove cylinder heads and gaskets.
  28. Clean all sealing surfaces.
To Install:
Right Side NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
NOTE: Do not use any type of sealant on the cylinder head gasket (unless specified).
  1. Clean the cylinder head bolt holes with a thread chaser and compressed air.
  2. Check the cylinder head locating pins for proper installation.
  3. Place a new cylinder head gasket over the engine block dowel pins.
  4. Install the cylinder head to the engine block.
  5. Apply sealant (GM P/N 12346004 or equivalent) to cylinder head bolt threads.
  6. Install the cylinder head bolts. gm-03-50-685.gif

  7. Tighten the cylinder head bolts in sequence on the first pass.
    • Torque to: 22 ft. lbs. (30 Nm)
  8. Using a torque angle meter, tighten the long bolts (1, 2, 5, 6, 9, 10 and 13) on the second pass in sequence to 75°.
  9. Using a torque angle meter, tighten the medium bolts (14 and 17) on the second pass in sequence to 65°.
  10. Using a torque angle meter, tighten the short bolts (3, 4, 7, 8, 11, 12, 15 and 16) on the second pass in sequence to 55°.
  11. Install the valve rocker arms and pushrods.
  12. Install the generator mounting bracket stud.
    • Torque to: 15 ft. lbs. (20 Nm)
  13. Loosely assemble the generator mounting bracket over the stud.
  14. Install all nuts and bolts finger tight.
    • Torque to: 30 ft. lbs. (41 Nm)
  15. Install the generator.
  16. Install the oil indicator tube bracket bolt.
  17. Install the exhaust manifold.
  18. Install the lower intake manifold.
  19. Install the valve rocker arm covers.
  20. Install the wiring bracket to the rear of the cylinder head.
  21. Connect the accessory bracket.
  22. Install the A/C compressor.
  23. Install the drive belt.
  24. Install the distributor cap.
  25. Connect the spark plug wires to the distributor cap.
  26. Install both heater hoses.
  27. Install the upper radiator hose.
  28. Install the air cleaner assembly.
  29. Refill the engine coolant.
  30. Connect the negative battery cable.
Left Side To Install:
NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
NOTE: Do not use any type of sealant on the cylinder head gasket (unless specified).
NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
NOTE: Do not use any type of sealant on the cylinder head gasket (unless specified).
  1. Clean the cylinder head bolt holes with a thread chaser and compressed air.
  2. Check the cylinder head locating pins for proper installation.
  3. Place a new cylinder head gasket over the engine block dowel pins.
  4. Install the cylinder head to the engine block.
  5. Apply sealant (GM P/N 12346004 or equivalent) to cylinder head bolt threads.
  6. Install the cylinder head bolts. gm-03-50-685.gif

  7. Tighten the cylinder head bolts in sequence on the first pass.
    • Torque to: 22 ft. lbs. (30 Nm)
  8. Using a torque angle meter, tighten the long bolts (1, 2, 5, 6, 9, 10 and 13) on the second pass in sequence to 75°.
  9. Using a torque angle meter, tighten the medium bolts (14 and 17) on the second pass in sequence to 65°.
  10. Using a torque angle meter, tighten the short bolts (3, 4, 7, 8, 11, 12, 15 and 16) on the second pass in sequence to 55°.
  11. Install the valve rocker arms and pushrods.
  12. Install the power steering pump mounting bracket stud.
    • Torque to: 15 ft. lbs. (20 Nm)
  13. Loosely assemble the mounting bracket over the stud.
  14. Install all nuts and bolts finger tight.
    • Torque to: 30 ft. lbs. (41 Nm)
  15. Install the power steering pump pulley.
  16. Connect the electrical connector to the power steering pump.
  17. Install the exhaust manifold.
  18. Install the lower intake manifold.
  19. Install the valve rocker arm covers.
  20. Install the wiring bracket to the rear of the cylinder head.
  21. Connect the accessory bracket.
  22. Install the A/C compressor.
  23. Install the drive belt.
  24. Install the distributor cap.
  25. Connect the spark plug wires to the distributor cap.
  26. Install both heater hoses.
  27. Install the upper radiator hose.
  28. Install the air cleaner assembly.
  29. Refill the engine coolant.
  30. Connect the negative battery cable.

Aug 31, 2010 | Chevrolet Suburban 1500 Cars & Trucks

2 Answers

What r the torque specifications on installing a head on a 1999 yukon and the tightening sequence


Check this procedure...
  1. Tighten the first design cylinder head bolts as follows:
    1. M11 bolts 1st pass: in sequence to 22 ft. lbs. (30 Nm).
    2. M11 bolts 2nd pass: in sequence + 90 degrees.
    3. M11 bolts (1,2,3,4,5,6,7,8): + 90 degrees.
    4. M11 bolts (9 and 10): + 50 degrees.
    5. M8 cylinder head bolts (11,12,13,14,15) to 22 ft. lbs. (30 Nm). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
  2. Tighten the second design cylinder head bolts as follows:
    1. M11 bolts (1-10) 1st pass: in sequence to 22 ft. lbs. (30 Nm).
    2. M11 bolts (1-10) 2nd pass: in sequence + 90 degrees.
    3. M11 bolts (1-10): + 70 degrees.
    4. M8 cylinder head bolts (11,12,13,14,15) to 22 ft. lbs. (30 Nm). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.

c409909.jpg

Fig. Cylinder head bolt tightening sequence-4.8L, 5.3L and 6.0L engines (click for zoom)


Install the cylinder head bolts in sequence to 22 ft. lbs. (30 Nm). The bolts must be tightened once, then be tightened again in sequence in the following order:
  1. Step 1: Short length bolt: (3, 4, 7, 8, 11, 12, 15, 16), plus 55 degrees.
  2. Step 2: Medium length bolt: (14, 17), plus 65 degrees.
  3. Step 3: Long length bolts: (1, 2, 5, 6, 9, 10, 13), plus 75 degrees.

7f05cb7.jpg

Fig. Cylinder head bolt tightening sequence-5.0L and 5.7L engines

Aug 04, 2010 | 1999 GMC Yukon Denali

1 Answer

Trying to find out where my compressor is


Take your pick since I don't know your engine size:


53ae78d.gif
A/C compressor mounting-2.2L engine


c0d5e07.gif
A/C compressor and bracket removal and installation-2.3L engine


d155b0d.gif
A/C compressor mounting-2.5L engine


32780ae.gif
A/C compressor and bracket-2.8L and early 3.1L engines

May 24, 2010 | 1995 Buick Regal

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

Trying to find alternator on ford escort 1997/8 estate?


RH side of engine compartment by firewall
1. Disconnect the battery ground cable.
2. remove the drive belt (Serpentine belt)
3. Remove the power steering hose bracket from the alternator bracket.
4. Remove bolts hold alternator to bracket
5. Disconnect the alternator electrical connectors

Feb 10, 2010 | 1997 Ford Escort

1 Answer

Tighten head bolt # ? torque 2.2l eng ply sundance 1991


  1. For vehicles with A/C and solid mount compressors, install the solid mount compressor bracket as follows:
    1. Position the spacer onto the stud, then install the bracket on the front (2 nut) mounting stud and slide the bracket over the timing belt cover into position.
    2. Loosen the assembly bracket-to-engine fasteners (numbered 1 through 7-refer to the accompanying illustration).



WARNING The bracket fasteners must be tightened in the proper sequence and to the specified torque values.
  1. Tighten the fasteners in the following sequence: 1) bolt 1 to 30 inch lbs. (3.3 Nm), 2) nut 2 and bolt 3 to 40 ft. lbs. (54 Nm), 3) bolts 1, 4 and 5 to 40 ft. lbs. (54 Nm), 4) bolts 6 and 7 to 40 ft. lbs. (54 Nm).
  2. Install the alternator and compressor to the bracket. Tighten the compressor mounting bolts to 40 ft. lbs. (54 Nm).
c18e88d.jpg

Nov 23, 2009 | 1991 Plymouth Sundance

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