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Thread: 1997 eldorado with northstar

  1. #1
    GIXXBYNITE is offline Cadillac Owners Member
    Automobile(s): ELDORADO
    Join Date
    Dec 2010
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    1997 eldorado with northstar

    Hello. i have a 1997 Eldorado and the idler pulley bolt has snapped off in the engine block. i was wondering if anyone experienced this and has any advise for a solution. can the idler pulley be bypassed completely with a different sized belt?? if so does anyone have the correct size? if not then do you have any idea what a dealer would charge to fix the problem. Thanks for any feedback.


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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 67,500 miles, 2014 Explorer XLT FWD
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    Re: 1997 eldorado with northstar

    Unfortunately the idler is there to insure adequate belt wrap for the alternator and A/C pulleys to reduce slip under load. It is a necessary item - very necessary.

    The labor to drill and EZ-out the broken bolt will be about an hour - and a decent local shop can do the job.

    (If the engine is a Northstar) - The scary part is that you're working with a ferrous bolt broken off in an aluminum block - if the work to remove the bolt results in damaged block threads, then the shop will have to helicoil the bolt hole, doubling the shop labor. It can all be done, but it's minor, technical surgery.

  4. #3
    97EldoCoupe's Avatar
    97EldoCoupe is offline Owner of Northstar Performance
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    Re: 1997 eldorado with northstar

    Correct - and it's in a hard to drill, hard to access place - you may wind up lowering the cradle a few inches to access this from inside the wheel well.

    Break's over, back to drilling/tapping-

  5. #4
    GIXXBYNITE is offline Cadillac Owners Member
    Automobile(s): ELDORADO
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    Re: 1997 eldorado with northstar

    thanks so much for taking the time to respond


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