Best lube for... head bolts ? - Defender Source
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  #1  
Old March 22nd, 2013, 09:28 AM
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Julien Dalbin
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Best lube for... head bolts ?

LR manual say use engine oil.

What about anti-seize compound ?

Or Lithium based grease ?

Thoughts ?
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  #2  
Old March 22nd, 2013, 09:31 AM
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Don't use anti-seize. I always use engine oil or Wurth HHS spray.
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  #3  
Old March 22nd, 2013, 09:35 AM
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If the manual says engine oil, why wouldnt you use engine oil? Its not exactly hard to find.
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  #4  
Old March 22nd, 2013, 09:38 AM
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Julien Dalbin
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Quote:
Originally Posted by transientmechanic View Post
If the manual says engine oil, why wouldnt you use engine oil? Its not exactly hard to find.
Sounds logical, but I don't trust LR vehicles neither LR manuals
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  #5  
Old March 22nd, 2013, 09:39 AM
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Bacon grease
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  #6  
Old March 22nd, 2013, 09:43 AM
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Quote:
Originally Posted by o2batsea View Post
Bacon grease
You know we are pork specialists down here ?
Our north coast is the birth place of the buccaneers, best pig cookers this side of the globe.
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  #7  
Old March 22nd, 2013, 09:48 AM
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You gotta go with what you know JD
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  #8  
Old March 22nd, 2013, 09:52 AM
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The book says engine oil cause thats how they measured the torque for the given bolt when tightening down. Use anything else and your torque could be off. Just make sure to clean out the holes. Qtips, alchol, air compressor, bolt with a notch/groove cut into it either/or works.
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  #9  
Old March 22nd, 2013, 09:57 AM
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Quote:
Originally Posted by airbornrover View Post
The book says engine oil cause thats how they measured the torque for the given bolt when tightening down. Use anything else and your torque could be off. Just make sure to clean out the holes. Qtips, alchol, air compressor, bolt with a notch/groove cut into it either/or works.
I screwed by hand each bolt dry first, to feel the resistance, only one is a little tacky. Every bolt hole was plugged during block cleaning and scrapping, so they're pretty clean and shinny.
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  #10  
Old March 22nd, 2013, 02:19 PM
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My manual says:

Quote:
29. Lubricate threads of bolts with light oil and fit to positions shown below. (Fit air cleaner mounting bracket at positions 6 and 14).
I dunno, I don't think in engine oil when I read that. More like gun oil.
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  #11  
Old March 22nd, 2013, 02:29 PM
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Quote:
Originally Posted by Santiago Montenegr View Post
My manual says:



I dunno, I don't think in engine oil when I read that. More like gun oil.
I had 3in1 oil in my list also, I like the smell of it
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  #12  
Old March 22nd, 2013, 02:33 PM
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Torque specs with anti-seize vary depending on composition and will almost certainly differ from equivalent torque with engine oil.

the point is to apply the correct amount of torque.
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  #13  
Old March 22nd, 2013, 02:39 PM
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like i always say do it right the first time ......ARP ultra-torque lube only!

http://youtu.be/6-XXVk_vwKw
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  #14  
Old March 22nd, 2013, 06:22 PM
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ARP lube or motor oil
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  #15  
Old March 22nd, 2013, 08:11 PM
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ARP lube...watch the video
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  #16  
Old April 2nd, 2013, 11:36 AM
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Julien Dalbin
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The torquing sequence for post 94 V8 heads indicates that the first step is to reach 20 NM, which is about 15 FP I believe. Most torque wrenchs start at 20 FP, how do you guys get those 15 FP, needle torque wrench?
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  #17  
Old April 2nd, 2013, 11:43 AM
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Using new factory bolts.. 15 ftlbs is hand tight anyway but a good 3/8 tourque wrench goes to 5 ftlbs

Studs require different torque value as stated by manufacture of stud
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  #18  
Old April 2nd, 2013, 12:13 PM
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Julien Dalbin
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What do you mean by hand tight ? you have to use a socket anyway on bolts 9 and 7, no fingers will fit there.
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  #19  
Old April 8th, 2013, 02:55 PM
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Use engine oil. The block does not get so hot that the bolts would sieze, it's not a gas turbine. And make sure you go light on the oil and that the holes are empty of liquid so you dont create a hydraulic fracture when you tighten the bolts. You just need a bit of slippy to allow the torque to be as accurate as possible.
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  #20  
Old April 8th, 2013, 07:14 PM
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Julien Dalbin
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I used motor oil, right head is bolted and torqued to specs, some bolts feel harder than other, in particular for the last 90.
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