Cylinder head bolt replacement
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 11 of 11
Northstar Engines and System Technical Discussion Discussion, Cylinder head bolt replacement in Cadillac Engine Technical Discussion; I believe that I have head bolts that have failed and according to what I have read on the this ...
  1. #1
    jerry23 is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Aug 2007
    Posts
    24

    Question Cylinder head bolt replacement

    I believe that I have head bolts that have failed and according to what I have read on the this site my coolant loss is the result of coolant leaking into the cylinders because ofthese bolts. My question to the group is if there is a way to replace the bolts without pulling the engine. Doing the job with the engine in place would take much longer but I am in no hurry at this point. Any thoughts? My Seville has 160k miles and is a 99.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Tailfin's Avatar
    Tailfin is offline Cadillac Owners Enthusiast
    Automobile(s): 1996 Deville Concours
    Join Date
    Jan 2004
    Location
    New York (too cold for people
    Age
    32
    Posts
    767

    Re: Cylinder head bolt replacement

    I just did that...take a look at my thread just below here. Read the whole thing though...I encountered an error in the FSM and in my last post, I specifically mentioned some things regarding your question.

    http://www.cadillacforums.com/forums...ng-n-head.html

  4. #3
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    44,513

    Re: Cylinder head bolt replacement

    ...... and read through the sticky posts just above. You'll need the info.

    Inserts from above - yes. Studs, no.

  5. #4
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    21,328
    Short answer - You cannot STUD the block with the engine in place.

    You can INSERT the block with the engine in place, but it's not recommended. It's much more difficult to drill and tap the block with it still in the car. If you mess it up, the engine is junk.

  6. #5
    jerry23 is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Aug 2007
    Posts
    24

    Re: Cylinder head bolt replacement

    Thank you for the replies. I don't suppose there is a way to raise the engine high enough to get the clearance needed to drill for the new studs?

  7. #6
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    21,328
    The problem isn't height, it's the clearance between the engine and firewall.

  8. #7
    jerry23 is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Aug 2007
    Posts
    24

    Re: Cylinder head bolt replacement

    Got it. I will continue to research to make sure I want to do this. Thank You again.

  9. #8
    CadillacLuke24's Avatar
    CadillacLuke24 is offline Cadillac Owners Connoisseur
    Automobile(s): Alexandra - 96 SDV
    Join Date
    Jul 2010
    Location
    Middle of Nowhere
    Age
    23
    Posts
    4,828

    Re: Cylinder head bolt replacement

    Ideally you'd get an engine hoist, disconnect the subframe/engine/trans from the rest of the car (with a pallet jack underneath the subframe), use the hoist to lift the front end of the car high enough, and then wheel the subframe and contents out from underneath.

    Good luck.

  10. #9
    04GrandAmGT's Avatar
    04GrandAmGT is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS, 04 Grand Am GT,07 Cobalt(Dont Judge,My fuel Saver)
    Join Date
    Oct 2012
    Location
    Manitoba, Canada
    Posts
    366

    Re: Cylinder head bolt replacement

    it is possible to do the studs in the car (we have had a few customers do it) its just the fact you might as well pull the motor because its about the same amount of time and probably a little less effort.
    Replacing the Head Gaskets on a Northstar? Use our SureGrip Cylinder Head Stud Kit!

    http://www.northstarperformance.com/sgstuds.php

    Patent # 8,740,532, Other Patents Pending

  11. #10
    JoeTahoe is online now Cadillac Owners Fanatic
    Automobile(s): 2001 GMC SLT,Tahoe, Malibu LTZ, 99 STS studded with NP
    Join Date
    Jul 2010
    Location
    Central, NY
    Age
    46
    Posts
    437
    How in the !!!! Did they stud it in the car. I would love to see pics of that

  12. #11
    04GrandAmGT's Avatar
    04GrandAmGT is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS, 04 Grand Am GT,07 Cobalt(Dont Judge,My fuel Saver)
    Join Date
    Oct 2012
    Location
    Manitoba, Canada
    Posts
    366

    Re: Cylinder head bolt replacement

    i would have like to too, from what i understood they unbolted the mounts and twisted then whole engine and tranny
    Replacing the Head Gaskets on a Northstar? Use our SureGrip Cylinder Head Stud Kit!

    http://www.northstarperformance.com/sgstuds.php

    Patent # 8,740,532, Other Patents Pending

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting