1998 Northstar. TimeSerts or Studs?
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 1998 Northstar. TimeSerts or Studs? in Past Cadillac Vehicle Discussion; Has anyone put these in there Northstar? Any costs and results Appreciated....
  1. #1
    SUPER LAC DEVILLE's Avatar
    SUPER LAC DEVILLE is offline Cadillac Owners Enthusiast
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    1998 Northstar. TimeSerts or Studs?

    Has anyone put these in there Northstar?

    Any costs and results Appreciated.

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  3. #2
    BowtieCrazz is offline Cadillac Owners Member
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    Re: 1998 Northstar. Time Certs or Studs?

    NS300L kit is the best I've used. nice kit.
    http://huhnsolutions.com/

  4. #3
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 1998 Northstar. Time Certs or Studs?

    Quote Originally Posted by SUPER LAC DEVILLE View Post
    Has anyone put these in there Northstar? Any costs and results Appreciated.
    The amount of info on these repairs that is already in here would fill a NYC telephone book ! Look through Discussions: Cadillac Tech Tips and in Engines, Northstar Performance; either the threads themselves or the several sticky posts at the beginning of the threads page. Lots of info, pictures, advice, workarounds. The drivetrain comes out the bottom of the car and you go from there.

    Don't use the older TimeSerts - there is a newer model: BigSert or better yet Norm's inserts, the NS300L (www.huhnsolutions.com) or for studs look at www.northstarperformance.com or www.carrollcustomcadillac.com. In any of those cases, lots of care and prep to do, machining all 20 head bolt holes in the block PLUS whatever else you want to do to the engine.

    A top overhaul like this ^^^ will probably run YOU (your time/labor) $1200 - 1500. A complete overhaul with bearings and oil pan/halfcase reseal about $2200 or so, professional shop .......... $4,000 + ............... BUT, depending where you are, you can contact Tim Carroll (studs) or Joe Blau at Midwest Cadillac Repair in Palatine, IL. Those guys specialize in studs and these engines for a really good job at very reasonable prices.

    Your companion thread to this one - "Custom Cadillac Pics" has been merged with a long-standing thread on the same subject - it's the "Pics of your FWD" up in the stickys on this page of threads.

    EDIT: In a 1998 Northstar there's a good chance for cam and cam follower wear, so check all 32 sets of valve gear. Your engine is a flat-tappet design, so some wear is inevitable, but there should be NO dishing of any follower face.

  5. #4
    CadillacLuke24's Avatar
    CadillacLuke24 is offline Cadillac Owners Connoisseur
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    Re: 1998 Northstar. TimeSerts or Studs?

    Studs.

  6. #5
    Manic Mechanic is offline Cadillac Owners Fanatic
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    Re: 1998 Northstar. TimeSerts or Studs?

    There's a set of never used N* performance studs for sale for the early blocks in the classifieds right now. I looked into it and the guy was trying to sell them several years ago and never did. His car was a Pre-99 so I assume that's what they are for. He only had like 2-3 posts on this board and two are trying to sell the stud kit. And he did have some posts on the nissan board but you have to be a member to search for his posts. Just a FYI. They won't fit mine so I didn't look any further.

    Vernon

  7. #6
    SUPER LAC DEVILLE's Avatar
    SUPER LAC DEVILLE is offline Cadillac Owners Enthusiast
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    I jus took a pic of all this info and sent it to my email and searching my Cadillac Service Manual

    Thanks y'all. The manual has so many damn bulletins (15years) makes it near impossible for me to sort thru it all. I'm not good at navigating the DVD/CD ROM interface

    I'm get'n more Studs recommendations from pretty much everyone I talk to but I heard a few people say the block is more susceptible to cracking at the insert points. Which would require a new engine.

    Anyone disagree???

    The costs are significant no mater where I go for the service. Cadillac Dealership blew my mind with the $4,000 90% labor tag.

    My father told me to kick rocks bc he'll never touch another Northstar motor for any price.

    Don't understand why but everyone hates to working on these engines???

    That's why I'm going thru my mechanic/friend so at least labor costs aren't that bad.

    I'm feeling like Going all in on the Studs tho.

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    CadillacLuke24's Avatar
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    Re: 1998 Northstar. TimeSerts or Studs?

    Many people avoid these engines because they are far more complex than what most mechanics are used to dealing with.

    Dual OverHead Cams, Fuel Injection, all Aluminum V8. Great engine with junk headbolts when the engine gets too warm. They require patience, care, and precision when rebuilding (i.e. tapping the block for heads), and most people don't have the patience, time, money, or combination of the previous three.

    If the studs are done wrong, of course there will be chance of failure. Have somebody who has their head out of their a$$ stud the block and there will be virtually no issues.

    If you have the time and the space, stud the block yourself. Lots of resources on this forum.

    If not, it would be a GREAT idea to go see Joe at Midwest Cadillac Repair in IL, like Sub said. He does a hell of a job. Usually for around $2000 for just HGs.

  9. #8
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 1998 Northstar. TimeSerts or Studs?

    Quote Originally Posted by SUPER LAC DEVILLE View Post
    I jus took a pic of all this info and sent it to my email and searching my Cadillac Service Manual
    That's why I'm going thru my mechanic/friend so at least labor costs aren't that bad.
    I'm feeling like Going all in on the Studs tho.
    Where are you ??? Get in touch with Midwest Cadillac Repair in Palatine, IL - they do an excellent stud job on Northstars - and even if you had to truck the car to them the cost would be less than half the dealer cost (and many dealers will NOT use studs).

    Update your profile to show your car, model, year, mileage, and maybe your approximate location - it all helps with quick diagnosis.

    Take a look at www.alldatadiy.com and consider a subscription for your car - the GM service manual plus all RPO's, TSB's, recalls, labor times, old parts prices, skrillions of wiring diagrams.

    (About the only reason a block would crack at a bolt or stud insert hole is because the bolt or stud was tightened and bottomed in the hole, causing a pretty incredible amount of expansion stress at the lower end of the threads. Properly tapped, the new studs turn in finger tight and are NOT tightened further: the upper fine thread nut and hardened washer do all the torque work, not the coarse lower threads.)

  10. #9
    Ranger's Avatar
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    Re: 1998 Northstar. TimeSerts or Studs?

    Quote Originally Posted by SUPER LAC DEVILLE View Post
    Don't understand why but everyone hates to working on these engines???
    That's because the drivetrain has to be dropped to do the repair.

    Don't know where you are, but if you are anywhere near Joe I would highly recommend him. I just saw him the other day and he is now well over 200 repairs so he has the experience and knowledge as well as a fair price.

  11. #10
    SUPER LAC DEVILLE's Avatar
    SUPER LAC DEVILLE is offline Cadillac Owners Enthusiast
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    I'm in Tampa Fl.

  12. #11
    StarLimos is offline Cadillac Owners Member
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    Re: 1998 Northstar. TimeSerts or Studs?

    I have used Northstarperformance.com kit on my stretch limo 2 years ago, never had any problem.

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