Torquing N* head - Page 2
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
Page 2 of 3 FirstFirst 1 2 3 LastLast
Results 16 to 30 of 32
Like Tree5Likes
Northstar Engines and System Technical Discussion Discussion, Torquing N* head in Cadillac Engine Technical Discussion; Humans will never be perfect, we are flawed by design. No matter what we do/ make we may make a ...
  1. #16
    98eldo32v's Avatar
    98eldo32v is offline Cadillac Owners Connoisseur
    Automobile(s): 98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
    Join Date
    Apr 2010
    Posts
    1,896

    Re: N* Headgasket torquing procedure

    Humans will never be perfect, we are flawed by design.

    No matter what we do/ make we may make a mistake or flaw because we are not perfect, so nothing we create will be perfect.

    Nature of the beast.....

    Good luck

    ----------

    Are those bolts torque to yield design?

  2. #17
    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
    45,012

    Re: N* Headgasket torquing procedure

    Quote Originally Posted by 98eldo32v View Post
    Are those bolts torque to yield design?
    Post #8

    Post #1, Procedure 3.

    EDIT: To further muddy the waters, you can also use a set of ARP studs, nuts and special hardened washers with the NS300L inserts.

  3. #18
    98eldo32v's Avatar
    98eldo32v is offline Cadillac Owners Connoisseur
    Automobile(s): 98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
    Join Date
    Apr 2010
    Posts
    1,896

    Re: N* Headgasket torquing procedure

    Torque yield bolts........DAMN!!!!!

    Another vote for studs.......

  4. #19
    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: N* Headgasket torquing procedure

    Yes yes, have to keep with the law here. Everything has gone wrong :-P. I think the bolts are a bigger concern than the gasket crushing, personally.

    This little article explains them: http://freeasestudyguides.com/a1_4.html

    ..and explains how they're basically screwed after that third pass...the one I did...:-P

    I really think there should be a sticky about that service manual error. That's horrible... I mean if I hadn't stumbled across that post, I would have had a HG failure after all this work and expense, owing to typos. As it is, of course I couldn't stumble across that yesterday...it had to wait until after I torqued my head LOL. Anyone have a use for 20 clean, slightly mal-formed Victor Reinz head bolts? :-D

    EDIT: Oh, in case anyone was wondering, the typo on the M6 (smaller by the timing) bolts is that it's supposed to be 106 lb in

  5. #20
    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
    45,012

    Re: N* Headgasket torquing procedure

    Your second thread on this engine problem was in Northstar. I just merged your essentially identical thread from Deville - since we're working on a Northstar engine.

    Racecar ??? ^^^ next post .......

    About the only reason racing engines use studs is because they are taken apart on a very regular basis. The ONLY reason studs are recommended for a Northstar top overhaul is to get away from the torque-to-yield head bolts and failed aluminum block bolt hole threads. If someone wanted to use NS300L inserts or Time BigSerts and good ol' HD head bolts from ARP you could take the heads off a Northstar and replace them to your hearts' content - using only new gaskets. (The trick would be to re-engineer torque values and make sure the head bolts and inserts had fine inner threads for more precise torque control.)

  6. #21
    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
    4,856

    Re: Torquing N* head

    Quote Originally Posted by 98eldo32v View Post

    Studs....... to the end.
    BECAUSE RACECAR!!
    98eldo32v likes this.

  7. #22
    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
    45,012

    Re: N* Headgasket torquing procedure

    Racecar spelled backwards is ...........
    CadillacLuke24 likes this.

  8. #23
    98eldo32v's Avatar
    98eldo32v is offline Cadillac Owners Connoisseur
    Automobile(s): 98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
    Join Date
    Apr 2010
    Posts
    1,896

    Re: Torquing N* head

    lol......

  9. #24
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    66
    Posts
    73,906

    Re: N* Headgasket torquing procedure

    Quote Originally Posted by Submariner409 View Post

    About the only reason racing engines use studs is because they are taken apart on a very regular basis.

  10. #25
    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
    375

    Re: Torquing N* head

    if worse comes to worse and i believe those inserts are threaded for 5/8 coarse, our studs will still work you will just have to manage getting the insert out and because you have it drilled and tapped, you would just need our SNW kit which is $335 compared to the full kit being $549.00 all prices include xpresspost shipping from canada (3-5 Day)


    Need parts for your Northstar Engine? www.northstarperformance.com

    Evrett, Sales Executive of the SureGrip™ Cylinder Head Stud Kit

  11. #26
    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: Torquing N* head

    Thanks for that information. That would mean completely dropping the engine...a feat which I've avoided due to lack of the hoist and such...but I will keep it in mind as an option opposite that of suicide if I have a problem :-P.

  12. #27
    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
    375

    Re: Torquing N* head

    we take the engines out of the top it isnt impossible and 90% of the time makes certain things easier such as never touching the subframe there is no chance for need of re-alignment, also dont have to touch brake lines or anything of that sort
    98eldo32v likes this.


    Need parts for your Northstar Engine? www.northstarperformance.com

    Evrett, Sales Executive of the SureGrip™ Cylinder Head Stud Kit

  13. #28
    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: Torquing N* head

    Hehe yeah top or bottom, it takes equipment I wasn't prepared to purchase just yet. I'm doing it in the car. A few things are a real pain, but still didn't seem worth pulling everything to me.

  14. #29
    vincentm's Avatar
    vincentm is offline Cadillac Owners Connoisseur
    Automobile(s): 1997 Cadillac Eldorado ETC
    Join Date
    Aug 2010
    Location
    Kennewick WA
    Age
    36
    Posts
    4,709
    Quote Originally Posted by Tailfin View Post
    Hehe yeah top or bottom, it takes equipment I wasn't prepared to purchase just yet. I'm doing it in the car. A few things are a real pain, but still didn't seem worth pulling everything to me.
    You cant do studs with the engine in the car, only TimeSerts..

  15. #30
    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: Torquing N* head

    Yeah that's what I just said a couple posts ago...here:

    Quote Originally Posted by Tailfin View Post
    Thanks for that information. That would mean completely dropping the engine...a feat which I've avoided due to lack of the hoist and such...but I will keep it in mind as an option opposite that of suicide if I have a problem :-P.
    I'm using the NS300L inserts...read too many bad things about TimeSerts. Plus, they practically admit it...by having BigSerts. Makes me nervous when they come out with a product to fix their first product haha.
    I'm almost done. Just have to put a fan, the coils/wires, the surge tank and a few other mechanical viscera back on and then I pray haha.

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