Re-tourqeing Headbolts? - PowerStrokeNation : Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 15 (permalink) Old 04-30-2011, 03:06 AM Thread Starter
AllYourBaseAreBelongToUs
 
imelmo's Avatar
 
Join Date: Jul 2007
Location: Slidell, LA
Posts: 13,955
Re-tourqeing Headbolts?

Just a curiosity question. Has anyone ever tried re-tourqueing their stock headbolts like the Dodge guys do?

.

EMPIRE DIESEL, PERFORMANCE TRUCK PRODUCTS, CEN-TEX DIESEL PERFORMANCE, AND DIESEL INNOVATIONS

ALSO LOTS OF HELP FROM (IN NO PARTICULAR ORDER) TWISTED DIESEL PERFORMANCE, FCDP, ITP, MATT WITH GEARHEAD, ERIC WITH INNOVATIVE, DOUG WITH GOGO DIESEL, CASS WITH FULL FORCE DIESEL, AND SWAMP'S

2005 F350 Fat-Butt Truck
2004 ECSB Procharged F250
imelmo is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 04-30-2011, 03:59 AM
PSN Veteran
 
Join Date: Dec 2010
Posts: 2,086
Re: Re-tourqeing Headbolts?

For the stock bolts I don't think you can do that. They are a use 1 time bolt, and my thinking is a retorque would be a second usage. I would like to know about retorque with studs.
lenzhotrod is offline  
post #3 of 15 (permalink) Old 04-30-2011, 05:01 AM
PSN Local
 
Specializeddieselnw's Avatar
 
Join Date: Nov 2009
Posts: 181
Re: Re-tourqeing Headbolts?

No re-torque required on the MLS style gaskets. Torque the ARP's once and forget about em.

Only time the stock headbolts should be touched is to pull them and scrap them!
Specializeddieselnw is offline  
 
post #4 of 15 (permalink) Old 04-30-2011, 03:36 PM
Damnkids Motorsports
 
Mdub707's Avatar
 
Join Date: Jun 2009
Location: Central NY
Posts: 2,260
Send a message via AIM to Mdub707
Re: Re-tourqeing Headbolts?

Yeah they're already torqued to a % of their failure. They are actually yielded when tightened, thus the one time use...

DamnKids Motorsports

2006 F-250 6.0 4x4 Vegistroked
SCT Xcal2 w/Innovative Diesel Tuning 466/772 7/19/08
Black smoke don't mean it's broke... it means your tuning sucks!

Quote:
Originally Posted by CSIPSD View Post
Paypal can go fuk themselfs... Buy me a beer the next time we meet.
Mdub707 is offline  
post #5 of 15 (permalink) Old 04-30-2011, 07:58 PM Thread Starter
AllYourBaseAreBelongToUs
 
imelmo's Avatar
 
Join Date: Jul 2007
Location: Slidell, LA
Posts: 13,955
Re: Re-tourqeing Headbolts?

Aren't the Dodge headbolts supposed to be torque to yield too though? I'm not 100% sure.

.

EMPIRE DIESEL, PERFORMANCE TRUCK PRODUCTS, CEN-TEX DIESEL PERFORMANCE, AND DIESEL INNOVATIONS

ALSO LOTS OF HELP FROM (IN NO PARTICULAR ORDER) TWISTED DIESEL PERFORMANCE, FCDP, ITP, MATT WITH GEARHEAD, ERIC WITH INNOVATIVE, DOUG WITH GOGO DIESEL, CASS WITH FULL FORCE DIESEL, AND SWAMP'S

2005 F350 Fat-Butt Truck
2004 ECSB Procharged F250
imelmo is offline  
post #6 of 15 (permalink) Old 04-30-2011, 08:06 PM
Bye-Bye 6.0, Hello 7.3!
 
IdahoF350's Avatar
 
Join Date: Jan 2009
Location: Surface of the Sun, Commiefornia
Posts: 80
Re: Re-tourqeing Headbolts?

I know I checked mine before I tore it down for head gaskets, and I would have expected something closer to 180, but they were closer to 115. You can certainly try and re-torque, but with TTY, there is no definitive spec, so anything you take them back up to is just a guess. For this very reason, if Cummins supplies a spec for re-torque, they are not TTY, but if there is no official re-torque spec, they may be, and then it would be up to some brave experimentors to try and find the failure point.

E99 (8/98) F-350 CCLB, Lariat, Black/Tan
7.3L, 4R100, 4WD, 3.73, 33s

Whats Done:
SCT Chip w/4 tunes by me; 4" Intake w/6637; 5" Dual Stacks, Straight Piped
Other Mods:
Pro-Tech Cab Guard & Box; Hella 500s (2 Euro, 3 spots); AR9100/AR6200
In The Works:
'05+ Axles w/6" Fabtech Lift; 37" M/Ts on raw '05 8-holes; Sprayed rockers & bed
IdahoF350 is offline  
post #7 of 15 (permalink) Old 04-30-2011, 08:10 PM Thread Starter
AllYourBaseAreBelongToUs
 
imelmo's Avatar
 
Join Date: Jul 2007
Location: Slidell, LA
Posts: 13,955
Re: Re-tourqeing Headbolts?

Quote:
Originally Posted by IdahoF350 View Post
I know I checked mine before I tore it down for head gaskets, and I would have expected something closer to 180, but they were closer to 115. You can certainly try and re-torque, but with TTY, there is no definitive spec, so anything you take them back up to is just a guess. For this very reason, if Cummins supplies a spec for re-torque, they are not TTY, but if there is no official re-torque spec, they may be, and then it would be up to some brave experimentors to try and find the failure point.

They don't have a spec to re-torque too. They just bring them back to waht stock torque is or in some cases a little higher.

.

EMPIRE DIESEL, PERFORMANCE TRUCK PRODUCTS, CEN-TEX DIESEL PERFORMANCE, AND DIESEL INNOVATIONS

ALSO LOTS OF HELP FROM (IN NO PARTICULAR ORDER) TWISTED DIESEL PERFORMANCE, FCDP, ITP, MATT WITH GEARHEAD, ERIC WITH INNOVATIVE, DOUG WITH GOGO DIESEL, CASS WITH FULL FORCE DIESEL, AND SWAMP'S

2005 F350 Fat-Butt Truck
2004 ECSB Procharged F250
imelmo is offline  
post #8 of 15 (permalink) Old 05-01-2011, 12:10 AM
PSN Local
 
Join Date: Sep 2008
Location: Alberta, Canada
Posts: 357
Re: Re-tourqeing Headbolts?

actually you can reuse tq to yield bolts twice, however the reason why you don't reuse them is its safer to replace them then risk not knowing if they were reused before.

The other way you can look at it is the 6.4 tq procedure, you tq the head then loosen the bolts off then torque them and then do the final tq to yield. Where as the 6l you tq then tq to yeild with no loosening off.

Arp's i have tourqued, ran to operating temp, cooled and retourqued with some haveing slight movement. Retourqed a year later when doing a couple injectors and again some had slight movement.

If you've ever done head gaskets on a 6l with stock bolts you will know that there is a " feel " on the bolt when your tq to yielding them. I'm sure if you just added the extra tq to the bolts (in proper order)to that " feel " you would not have a problem and would probably benifit from a restored clamping. However If your gaskets are screwd then your more then likely sol.
sonic blue l is offline  
post #9 of 15 (permalink) Old 05-01-2011, 03:01 PM Thread Starter
AllYourBaseAreBelongToUs
 
imelmo's Avatar
 
Join Date: Jul 2007
Location: Slidell, LA
Posts: 13,955
Re: Re-tourqeing Headbolts?

Quote:
Originally Posted by sonic blue l View Post
I'm sure if you just added the extra tq to the bolts (in proper order)to that " feel " you would not have a problem and would probably benifit from a restored clamping.

That's what I'm thinking. I'd like to see someone try it.

.

EMPIRE DIESEL, PERFORMANCE TRUCK PRODUCTS, CEN-TEX DIESEL PERFORMANCE, AND DIESEL INNOVATIONS

ALSO LOTS OF HELP FROM (IN NO PARTICULAR ORDER) TWISTED DIESEL PERFORMANCE, FCDP, ITP, MATT WITH GEARHEAD, ERIC WITH INNOVATIVE, DOUG WITH GOGO DIESEL, CASS WITH FULL FORCE DIESEL, AND SWAMP'S

2005 F350 Fat-Butt Truck
2004 ECSB Procharged F250
imelmo is offline  
post #10 of 15 (permalink) Old 05-01-2011, 03:27 PM
PSN Veteran
 
neverkickn's Avatar
 
Join Date: Jan 2010
Location: AR
Posts: 682
Re: Re-tourqeing Headbolts?

Quote:
Originally Posted by imelmo View Post
That's what I'm thinking. I'd like to see someone try it.

.
I'd say give it a go but your truck prolly hasn't had stock bolts in some time.

01 f250 scsb Work Truck
neverkickn is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome