Question about 1990 Isuzu Trooper
This is the second time the alternator bracket broke.It also broke one aternator housing.I also can't seem to remove the pullys to get to the bracket,since I need to replace it.Help anyone???
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Posted on Jan 02, 2017
My son just got the alternator off of my Trooper (1997) and he said removing the wheel is not necessary. He took off 2 bolts from the top and several from the bottom that were very difficult to remove but then the alternator came off pretty easy. He says if it loose then it should come off pretty easy, if it is not loose, you must be missing a bolt somewhere. He also says is you are in our area, call him and he will take it off for $100 =)
Posted on Oct 25, 2008
1. Remove battery terminals and secure them away from the battery posts using nylon wire ties.
1a. Fine some comfortable eye glasses (clear or yellow) and keep them on. There are plenty of opportunities to get debris in your eyes during this procedure.
2. Spray "PB Blaster" (loosens bolts) on two bolts that secures alternator.
3. Jack-up vehicle on side to access alternator. Use a jackstand to support.
4. Using a 10mm open-ended wrench, loosen the bolt that swings the alternator. Screwing the bolt "in" or toward the engine will allow play to increase in the alternator belt. Loosen the 12mm bolt slightly next to the 10mm bolt (approximately 1.5" toward engine).
5. Continue to loosen 10mm bolt until there is enough slack in the belt to remove the belt from the alternator pulley.
6. Remove belt. It may be possible to remove belt without removing fan faring. Maybe not. If not, you will need to remove plastic fairing. If you must remove fair, go below fan fairing and disassemble connectors that hold together pieces of fan fairing. Carefully remove.
7. Install alternator fan from above.
8. Check that alternator belt is on all tracks (from below with a flashlight), and slowly tighten.
9. Secure 10mm and 12mm bolts. Recheck tightness.
10. Reassemble battery connection and run vehicle at idle for about 5 minutes. Check belt for proper tension.
11. CAREFULLY check tension of belt. Or disassemble battery connections and re-check belt tension.
12. Reassemble fan fairing (if not already assembled), re-connect battery terminals, and have a nice day. :-)
Posted on Jan 04, 2009
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