Update on parts I have/had - Page 2
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Northstar Engines and System Technical Discussion Discussion, Update on parts I have/had in Cadillac Engine Technical Discussion; New rod bolts? Thought you were supposed to change rod bearings when you took off rods due to bearing crush ...
  1. #16
    stoveguyy is offline Cadillac Owners Connoisseur
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    New rod bolts? Thought you were supposed to change rod bearings when you took off rods due to bearing crush issues? But you change rod bolts if you disassemble?

  2. #17
    Submariner409's Avatar
    Submariner409 is offline If it won't run, install a sound system
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    Re: Update on parts I have/had

    Northstar rod bolts are comparatively high torque items - always replace them at overhaul.

    From the GM service manual for Northstar procedures: "Powdered metal connecting rods have rod bolts which yield when torqued. If the rod bolts are loosened or removed the rod bolts must be replaced. Rod bolts that are not replaced will not torque to the correct clamp load and can lead to serious engine damage."

  3. #18
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
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    Re: Update on parts I have/had

    The FSM stated that you needed to replace the rod bearings originaly, but they updated that information to state only if worn.

  4. #19
    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    I talked quickly with our resident northstar guru today and he said that if theY break or if he thinks they feel "weird" coming out he replaces them. (The main bolts that is)

    Usually it s the studded one an one or more of the others.

    But often he won't need any. It all depends.
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
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    ~~ Family owned and operated in Wilmington, NC since 1946 ~~
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  5. #20
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
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    Re: Update on parts I have/had

    I have broken a few main bolts. I used to keep a few new bolts in my area at the Caddy dealer for the other techs to use because we did not stock them. Spent almost 6 years as what I would say is a Northstar Tech. Still work on Caddy's just not every day -- Chevy/Caddy dealer fits me better

    Thanks Cal Editor aka A.J.

    ASE Master Certified since 1988
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    GM Technician since 1999
    GM World Class Technician since 2009
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