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 Alternator mount/ serpentine
#836807
09/19/07 12:10 AM
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Joined: Feb 2006
Posts: 14
OP
Need a Spot
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I had a cracked alternator mount which caused my serpentine belt to fall off instantly. I will be replacing the bracket/ mount on Thursday. Anyone have any advice for me? I'm going to be taking things apart soon, and would appreciate any advice. The belt is in perfect condition PS I got plenty of good advice when I was putting a rebuilt engine & upgrades in my 91 LS V6 trooper. I have since put an Amsoil dual oil filter in it (25,000 mile oil change interval)! http://www.amsoil.com/StoreFront/bf.aspx Thanks again
1991 Trooper LS / (rebuilt) 2.8 GM
free flow exhaust
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Re: Alternator mount/ serpentine
[Re: 1991TrooperV6]
#836808
09/19/07 12:39 AM
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Joined: Sep 2004
Posts: 45
Getting the Wheeling Fever
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Did that a few years ago its fairly straight forward. What I did, and don't know if others may have, I fabricated a new bracket out of steel. That pot metal is crap. You also might want to check if the S brace that bolts to the block is cracked thats what did mine in. I reused the OEM brace but welded it then a piece of flat bar in the same shape in the curve area to reinforce it. I think my engine is the same as yours if not...um never mind. <img src="/forums/images/graemlins/ignore.gif" alt="" />
90 Trooper LS
5 Spd
V6 2.8L
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Re: Alternator mount/ serpentine
[Re: ONEOFAKIND]
#836809
09/19/07 12:53 AM
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Joined: Feb 2006
Posts: 14
OP
Need a Spot
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thanks!
I was wondering if it was Aluminum or Pot metal, too bad. When I get it apart I'll see if I can do any fabrication, do you have any pictures that could same me some R&D?
1991 Trooper LS / (rebuilt) 2.8 GM
free flow exhaust
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Re: Alternator mount/ serpentine
[Re: 1991TrooperV6]
#836810
09/19/07 01:27 AM
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Joined: Sep 2004
Posts: 45
Getting the Wheeling Fever
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Sorry no pics.. but I just used the old one as the template it wasn't that bad really. Another reason why I did it was the parts on troopers in my area are pretty picked over. If I had to do it again I would defiantly do the fab I believe it was well worth the effort. Its not bad getting it out but doing the fab I knew its one more thing that I know is fixed for good. That material for that bracket in my opinion was a horrible choice there is a tremendous amt of tension on that thing.
Good luck.
90 Trooper LS
5 Spd
V6 2.8L
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Re: Alternator mount/ serpentine
[Re: ONEOFAKIND]
#836811
09/19/07 02:29 AM
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Joined: Feb 2006
Posts: 14
OP
Need a Spot
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I'm having a terrible time getting the pieces off. I suspect the last bolt to get the broken brace off is behind the tension spring assembly. It seems like there is a "torx" bolt located at the center of the tension spring assembly?
1991 Trooper LS / (rebuilt) 2.8 GM
free flow exhaust
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Re: Alternator mount/ serpentine
[Re: 1991TrooperV6]
#836812
09/19/07 03:31 AM
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Joined: Aug 2000
Posts: 4,868
Roll Me Over
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I "believe" that is a 55 Torx.
I am going out to the rig right now so I will check.
I couldn't get there without pulling my belt, but I am pretty sure that it is a t-55.
Last edited by Jim_Paget; 09/19/07 03:38 AM.
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Re: Alternator mount/ serpentine
[Re: Jim_Paget]
#836813
09/19/07 04:46 AM
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Joined: Oct 2001
Posts: 945
Rock Warrior
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My 90 Trooper's aluminum a/c bracket broke this summer. I took it to a local place that does cylinder head repair, cost $20.00
Curt B 89RS Calmini Header Delta Cam 33x10.5 BFG MTs & 90 Trooper 3.4 v6, SAS D44 ARB/Hobart 5.38s 35s my pictures
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Re: Alternator mount/ serpentine
[Re: 1991TrooperV6]
#836814
09/19/07 07:41 PM
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Joined: Dec 1999
Posts: 1,035
Body Damage is Cool
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If you have trouble locating another bracket or fixing your own, don't forget that a Chevy S-10 or GMC S-15 with 2.8 & serpentine belt would have the same bracket. Probably lots of them in the local wrecking yard.
Sears will have a nice Torx bit set and you should be able to pick up individual bits at your local auto parts store.
Have Fun!............ed
'90 Troop 3.4 LS
'89 Troop RS (Has Valve Issues, needs Counseling)
HI, I'm Ed and I'm a Trooper-holic!
Keep On Troopin'......
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