Concerns with my 1997 Northstar Engine - Page 2
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Northstar Engines and System Technical Discussion Discussion, Concerns with my 1997 Northstar Engine in Cadillac Engine Technical Discussion; Thanks Bigtone. I will certainly follow the advice. I rather spend a little money to give me some piece of ...
  1. #16
    techevar is offline Cadillac Owners Member
    Automobile(s): 1997 Eldorado
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    Re: Concerns with my 1997 Northstar Engine

    Thanks Bigtone. I will certainly follow the advice. I rather spend a little money to give me some piece of mind. Any thing you do to the car will not hurt. It should improve the reliability of the car.

  2. #17
    Cadman 32 is offline Cadillac Owners Member
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    Re: Concerns with my 1997 Northstar Engine

    Thank you for the answers to his questions. I am configuring a recently acquired '95 STS (67k miles)and also interested in freshening the cooling system. I intend to change all the hoses and belts along with a hard look at the idlers per the advice above.
    Outside of steps previously mentioned, does anyone see the value in a re-torque of the heads? It is done with other aluminum head applications, so is that something commonly done to this engine?
    Thanks

    After reading the thread about repairing head bolt threads, I'm thinking I don't want to ask much more from those block threads and I should be greatful that the gaskets are still holding.

  3. #18
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Concerns with my 1997 Northstar Engine

    There is no final torque spec on these head bolts, so don't even remotely consider thinking about or even performing a "re-torque".

    These head bolts are torqued to 37 lb/ft and then further tightened a specific number of degrees in 3 successive steps.

  4. #19
    89falcon is offline Cadillac Owners Fanatic
    Automobile(s): my wife crazy, 1997 STS, 2004 CTS
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    Re: Concerns with my 1997 Northstar Engine

    Quote Originally Posted by Cadman 32 View Post
    Thank you for the answers to his questions. I am configuring a recently acquired '95 STS (67k miles)and also interested in freshening the cooling system. I intend to change all the hoses and belts along with a hard look at the idlers per the advice above.
    Outside of steps previously mentioned, does anyone see the value in a re-torque of the heads? It is done with other aluminum head applications, so is that something commonly done to this engine?
    Thanks

    After reading the thread about repairing head bolt threads, I'm thinking I don't want to ask much more from those block threads and I should be greatful that the gaskets are still holding.
    The factory bolts come with a coating on the threads that acts as a lubricant during torquing, then a thread locker afterwards.....DO NOT "RETORQUE"......not appropriate for the N*

  5. #20
    Cadman 32 is offline Cadillac Owners Member
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    Re: Concerns with my 1997 Northstar Engine

    Thank you for your help!

  6. #21
    manniefresh84 is offline Cadillac Owners Member
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    I myself recently bought a 97 eldo from an older lady i'm Phoenix. I absolutely love my car. Yet I do have some issues. Struts are.completely shot, passenger windows doesn't roll down and my instrument panel.lights keep going.off and on hen headlights are on.. Found a huge hole in the air.conditioner plastic piece that's bolted to the firewall. Any recommendations on what I should.do? I wanna keep it only has 121k miles on it.. And its the etc model..

  7. #22
    ronluh is offline Cadillac Owners Member
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    Keep it and drive it!!!! Eldo's are way too fun to drive, especially on the freeway at WOT!!!!!!! I will fix and keep mine, cheaper than $400 car note

  8. #23
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Concerns with my 1997 Northstar Engine

    Quote Originally Posted by manniefresh84 View Post
    I myself recently bought a 97 eldo from an older lady i'm Phoenix. I absolutely love my car. Yet I do have some issues. Struts are.completely shot, passenger windows doesn't roll down and my instrument panel.lights keep going.off and on hen headlights are on.. Found a huge hole in the air.conditioner plastic piece that's bolted to the firewall. Any recommendations on what I should.do? I wanna keep it only has 121k miles on it.. And its the etc model..
    Pretty common. The plastic gets brittle overtime. Replacement part is all but impossible to fine, not to mention that you have to drop the drivetrain to replace it. You may have to get innovative and patch it a gently and as best as you can. Emphasis on gently as it will crumble in your hand.

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