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head studs


 
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heybusdriver
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Joined: 25 Nov 2000
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Location: Surrey B.C. Canada

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PostPosted: Tue Jan 15, 2013 10:10 am    Post subject: head studs Reply to specific post Reply with quote

I've never had to deal with head studs before only head bolts, I'm going to be replacing my head gasket , only being able to work on it a few minutes at a time due to the cold weather. On my head bolts , I've never used anything just put them on and torqued them down and then re-torqued after getting hot. Is there anything different I should do with the studs? What about putting never seize on the studs, would that be advisable or not?

I want to get this thing done ASAP , to get it out of my hair. I've got other work I want to get done on my loader tractor , i.e. put in new axle pin , radius rods , spindle bearings and before putting the loader back on, check growling transmission bearing.


Stan
9N 222933
2N with 8N motor 8N345567
8N 146710
8N 179555
8N 197904
8N 199000
8N 254079
8N 362039
 
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souNdguy
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Joined: 20 Aug 2002
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PostPosted: Tue Jan 15, 2013 11:08 am    Post subject: Re: head studs Reply to specific post Reply with quote

as a general rule.. studs and bolts that go into dry / blind holes, .. i put in dry.

studs and bolts that go into water jackets.. i put on with thread pucky.

studs that hold nuts in hot place like the manifold.. I like to use neverseize to help out the next guy.. who may be me :)

head gasket on an N only takes minutes.. so shouldn't be a time issue.. Smile
 
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ZANE
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PostPosted: Tue Jan 15, 2013 11:24 am    Post subject: Re: head studs Reply to specific post Reply with quote

The torque for the nuts and the bolts on the head retainers are differnet. Lot less torque for the nuts because they are fine threads.

I don't know the torques or the difference but I do know they are different and it is very important not to overtorque the nuts especially.

Maybe somebody will chime in and give the torque specfications.

Zane
 
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JCinKY
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Joined: 01 Aug 2012
Posts: 711
Location: Glendale KY

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PostPosted: Tue Jan 15, 2013 12:59 pm    Post subject: Re: head studs Reply to specific post Reply with quote

ZANE wrote:
(quoted from post at 12:24:40 01/15/13) The torque for the nuts and the bolts on the head retainers are differnet. Lot less torque for the nuts because they are fine threads.

I don't know the torques or the difference but I do know they are different and it is very important not to overtorque the nuts especially.

Maybe somebody will chime in and give the torque specfications.

Zane


I believe head stud nut torque is 45-55. While head bolt torque is 60-75. All my head bolts went into water jacket, used anti-sieze in good proportion. No leaks whatsoever...yet.
 
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old
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Joined: 12 Mar 2000
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Location: Lake of the Ozarks area of MO

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PostPosted: Tue Jan 15, 2013 1:14 pm    Post subject: Re: head studs Reply to specific post Reply with quote

As per the I-T FO-4 manual torque spec is 50-55lbs/ft on nuts and 65-70 on cap screws as per paragraph 21. Such question is why I keep a pile of manuals on my desk
 
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souNdguy
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PostPosted: Tue Jan 15, 2013 3:38 pm    Post subject: Re: head studs Reply to specific post Reply with quote

yer corner bolts were wet?
 
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Hobo,NC
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Joined: 14 Jun 2007
Posts: 11854
Location: Sanford, NC

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PostPosted: Tue Jan 15, 2013 6:01 pm    Post subject: Re: head studs Reply to specific post Reply with quote

JCinKY wrote:
(quoted from post at 00:59:17 01/16/13)
ZANE wrote:
(quoted from post at 12:24:40 01/15/13) The torque for the nuts and the bolts on the head retainers are differnet. Lot less torque for the nuts because they are fine threads.

I don't know the torques or the difference but I do know they are different and it is very important not to overtorque the nuts especially.

Maybe somebody will chime in and give the torque specfications.

Zane


I believe head stud nut torque is 45-55. While head bolt torque is 60-75. All my head bolts went into water jacket, used anti-seize in good proportion. No leaks whatsoever...yet.


anti-seize on a head bolt Shocked
 
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JCinKY
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Location: Glendale KY

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PostPosted: Wed Jan 16, 2013 9:37 am    Post subject: Re: head studs Reply to specific post Reply with quote

Apologies...corners were dry all others were wet. I did use anti-seize on the head bolts since I had it laying around. Did not want to drive the 30 minutes to town; its thick, sealed em up, and will be easy to remove next time.
 
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JMOR
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PostPosted: Wed Jan 16, 2013 2:05 pm    Post subject: Re: head studs Reply to specific post Reply with quote

JCinKY wrote:
(quoted from post at 13:37:58 01/16/13) Apologies...corners were dry all others were wet. I did use anti-seize on the head bolts since I had it laying around. Did not want to drive the 30 minutes to town; its thick, sealed em up, and will be easy to remove next time.
Not to worry.........scanning the archives will turn up posting reporting the number of 'blind' holes from 0, 1,2,3, to 7. And now since your head has 4 'corners', the future search will reveal 0, 1, 2, 3, 4, 7!!!!
Just like the Internet...find any answer you are looking for. Wink
 
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