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Afordable
Afordable, Mechanic & Technician for 25 years
Category: Ford
Satisfied Customers: 323
Experience:  Automotive Industry - Ford Enthusiast including a 1956 Ford Panel F100
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1988 ford f-150: alternator..cyl

Resolved Question:

instructions on how to remove and replace alternator on 1988 ford f-150, 6 cyl.
Submitted: 8 years ago.
Category: Ford
Expert:  Afordable replied 8 years ago.
Hi jeffups... let me know if this helps.

There are 4 different types of alternators found on the years and model ranges covered in this information:

  1. Rear Terminal, External Regulator, External Fan Alternator
  2. Side Terminal, Internal Regulator, External Fan Alternator
  3. Leece-Neville 165 Ampere Alternator
  4. Integral Rear Mount Regulator, Internal Fan Alternator

Rear Terminal, External Regulator, External Fan Alternator

This unit utilizes a separate, external electronic regulator. The regulator is non-adjustable. The rear terminal alternator was standard equipment on 1987 trucks, and can be found on some 1992 motor home chassis models equipped with the 7.3L diesel or 7.5L gasoline engine.

Side Terminal, Internal Regulator, External Fan Alternator

This unit was optional on 1987, standard on all 1988-92 models and standard on 1993-96 models equipped with the 4.9L and 7.5L engines. The regulator in integrated within the alternator body and is not adjustable.

Integral Rear Mount Regulator, Internal Fan Alternator

This alternator is standard equipment on all 1993-96 models equipped with 5.0L, 5.8L gasoline engines and 7.3L diesel engines (except the 1996 F-Super Duty models).

Leece-Neville 165 Ampere Alternator

This unit is optional equipment on some 1989-94 trucks and ambulance packages. A separate, electronic, fully adjustable regulator is employed in this system.

Mitsubishi 215 Ampere Alternator

This unit is found on 1996 F-Super Duty models equipped with the 7.3L diesel engine. The regulator is integral and the fan is external.

TESTING



When performing charging system tests, turn off all lights and electrical components. Place the transmission in P (AT) or N (MT) and apply the parking brake.

To ensure accurate meter indications, the battery terminal posts and battery cable clamps must be clean and tight.

Customer: replied 8 years ago.
I need to know instructions on how to remove and replace side term,int reg.ext fan alternator, this only identified part, did not answer question
Expert:  Afordable replied 8 years ago.
Here are steps for the R and R of the alternator...





See Figures 1, 2, 3 and 4



Click image to see an enlarged view

Fig. Fig. 1: Disengage all wiring harness connections from the alternator



Click image to see an enlarged view

Fig. Fig. 2: Once it is unbolted, maneuver the alternator from the engine compartment



Click image to see an enlarged view

Fig. Fig. 3: Side terminal alternator



Click image to see an enlarged view

Fig. Fig. 4: Rear terminal alternator

  1. Disconnect the battery ground cable.
  2. Remove the adjusting arm bolt.
  3. Remove the alternator through-bolt. Remove the drive belt from the alternator pulley and lower the alternator.

Some engines are equipped with a ribbed, K-section belt and automatic tensioner. A suitable tool must be made to remove the tension from the tensioner arm. Loosen the idler pulley pivot and adjuster bolts before using the tool..

  1. Label all of the leads to the alternator so that you can install them correctly and disconnect the leads from the alternator.
  2. Remove the alternator from the vehicle.
  3. To install, reverse the above procedure. Observe the following torques:

    Pivot bolt: 58 ft. lbs. (78 Nm)
    Adjusting bolt: 25 ft. lbs. (34 Nm)
    Wire terminal nuts: 60-90 inch lbs. (6.8-10.1 Nm)
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