headstud sealant ? - PowerStrokeNation : Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 04-11-2009, 03:47 AM Thread Starter
PSN Local
 
wynndaddy's Avatar
 
Join Date: May 2008
Location: TN
Posts: 492
headstud sealant ?

Does anyone use any type of sealant on the threads of their headstuds ? I've seen ARP has some and I read somewhere of using some loctite but did'nt know if it was needed on the 7.3 . Do they pass through any jackets? I dont want water chasing the threads , but most directions just say to use high psi lube .

1997 cc swb 4x4
.
wynndaddy is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 04-11-2009, 03:55 AM
fueled by Colecovision
 
golfer's Avatar
 
Join Date: Aug 2007
Location: Nashville, TN
Posts: 3,060
Garage
Re: headstud sealant ?

no sealant is needed, as no headbolt holes pass openly into coolant jackets.

The "sealant" you referred to is actually a specialized lubricant (moly grease) that allows you to reach a very consistent and accurate torque value when installing the studs.

When we build an engine for a customer up north (where they salt the roads heavily) we will coat the exposed studs (those outside of valve covers) with either paint (to match the engine color) or a clear paint to prevent rust from attacking the studs from the outside.

take care~

Dave
golfer is offline  
post #3 of 11 (permalink) Old 04-11-2009, 03:56 AM
Soon to be a 6.4
 
lildevil02's Avatar
 
Join Date: Jul 2007
Location: Raleigh NC
Posts: 2,116
Send a message via AIM to lildevil02
Re: headstud sealant ?

I pretty sure you don't need to seal the studs with anything.
lildevil02 is offline  
 
post #4 of 11 (permalink) Old 04-11-2009, 04:14 AM Thread Starter
PSN Local
 
wynndaddy's Avatar
 
Join Date: May 2008
Location: TN
Posts: 492
Re: headstud sealant ?

Hey thanks for the quick responses . I thought that was the case but had been told diffrent and just wanted to be sure before I put them in .

1997 cc swb 4x4
.
wynndaddy is offline  
post #5 of 11 (permalink) Old 04-11-2009, 04:36 AM
OverFuelingForYourPlesure
 
pontiacross's Avatar
 
Join Date: Jan 2008
Location: mexico MO
Posts: 1,609
Re: headstud sealant ?

I have seen some engines that the head bolts screwed right into the coolant passages I think maybe chevy did that on a couple

Ross
2.6 modified street pulling truck "The Lone Stroke
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

-1996 f350, stock bottom end! swamps 400/400% injectors, swamps BFH turbo, swamps IDM, Swamps tunes, BTS oil, springs, studs, tubes, fuel system, water to air cooler, and much more...

-97 f350 4x4 CCLB tow rig


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
pontiacross is offline  
post #6 of 11 (permalink) Old 04-11-2009, 04:50 AM
PSN Veteran
 
Layson's Avatar
 
Join Date: Jul 2007
Location: Corvallis, OR
Posts: 3,432
Re: headstud sealant ?

Yep... what has been said already... molly lube!!
Layson is offline  
post #7 of 11 (permalink) Old 04-11-2009, 05:21 AM
Plays with Motors
 
Machinist's Avatar
 
Join Date: Aug 2007
Location: Northern California
Posts: 611
Re: headstud sealant ?

Quote:
Originally Posted by pontiacross View Post
I have seen some engines that the head bolts screwed right into the coolant passages I think maybe chevy did that on a couple
It's very common, usually only the top row of bolt holes on a stock block are blind. Permatex #2A non hardening sealer is what I use.

2011 335i M-Sport
2000 F-250 7.3L ( Sold )
1966 Mustang Fastback

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Machinist is offline  
post #8 of 11 (permalink) Old 04-11-2009, 12:21 PM
Banned
 
Join Date: Jul 2007
Location: Twilightzone
Posts: 7,764
Re: headstud sealant ?

Quote:
Originally Posted by lildevil02 View Post
I pretty sure you don't need to seal the studs with anything.
It's a good idea to seal the ones outside the VC's so that they do not rust. After RE-purchasing enough studs to replace all the ones outside the VC's already, I can say with confidence that steps should be taken.
Charles is offline  
post #9 of 11 (permalink) Old 04-11-2009, 12:50 PM
Soon to be a 6.4
 
lildevil02's Avatar
 
Join Date: Jul 2007
Location: Raleigh NC
Posts: 2,116
Send a message via AIM to lildevil02
Re: headstud sealant ?

Quote:
Originally Posted by Charles View Post
It's a good idea to seal the ones outside the VC's so that they do not rust. After RE-purchasing enough studs to replace all the ones outside the VC's already, I can say with confidence that steps should be taken.
With molly lube or reg paint?
lildevil02 is offline  
post #10 of 11 (permalink) Old 04-11-2009, 11:32 PM
HHAUL'N STROKER
 
SMOK'N BLUE STROKER's Avatar
 
Join Date: Jul 2007
Location: Pueblo Co
Posts: 1,574
Re: headstud sealant ?

Quote:
When we build an engine for a customer up north (where they salt the roads heavily) we will coat the exposed studs (those outside of valve covers) with either paint (to match the engine color) or a clear paint to prevent rust from attacking the studs from the outside.
I would imagine a high temp paint.
SMOK'N BLUE STROKER 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