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Best Grease for Locking Lugs ?

High pressure grease, rated to take some temps are good

I like these two:


 
NECO MolySlide - 60% molybdenum disulfide in a light grease. The tube has a very small hole in the nozzle, so it's perfect for dispensing the very small amounts needed (a barely visible film). I also use it for trigger sears, pistol slides etc. So little is used that it doesn't pick up dirt, but it's slicker than anything else I've tried.
 
I've been using Gun Butter grease. It comes in a tube but I dispense it into a small jar and apply it with one of those long tooth picks [I think they are used for hor dourves.

Interesting point about pulling the trigger when closing the bolt.

Me too

Gun Butter is the best I've tried.
 
Yup… especially if the lugs are properly lapped to evenly distribute the load over the entire contact surfaces.
I agree except, the better the surface finish and mating surfaces, the less room there is for ANY lube. Ultimately, most any EP grease qualities far surpass what we ask of them in our application as long as it stays put. For that reason alone, I like cam lube with lithium. Just imagine what it is designed to be subjected to for a minute vs what we are asking of it.
 
I agree except, the better the surface finish and mating surfaces, the less room there is for ANY lube. Ultimately, most any EP grease qualities far surpass what we ask of them in our application as long as it stays put. For that reason alone, I like cam lube with lithium. Just imagine what it is designed to be subjected to for a minute vs what we are asking of it.
Highly finished cam lobes and followers are lubricated with motor oil and last a long time!
 
Highly finished cam lobes and followers are lubricated with motor oil and last a long time!
No sir! That's what and why cam lube is very important during initial breakin. Then..yes, they run a long time. I was in that business for a long time. I know how important it is. Even every mfg applies it to every new engine before it is started. Every single one. The only thing debatable about my post is moly vsa lithium based. Both will work but I prefer litium based cam/assmbly lubes. Finishes are measurable and specified in those applications, too. Oh, and "flat tappets" are not flat, by design. That makes them spin because the cam lobe is NOT centered on the tappet.
 
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No sir! That's what and why cam lube is very important during initial breakin. Then..yes, they run a long time. I was in that business for a long time. I know how important it is. Even every mfg applies it to every new engine before it is started. Every single one. The only thing debatable about my post is moly vsa lithium based. Both will work but I prefer litium based cam/assmbly lubes. Finishes are measurable and specified in those applications, too. Oh, and "flat tappets" are not flat, by design. That makes them spin because the cam lobe is NOT centered on the tappet.
I used to use a red sticky icky cam lube that clay smith cams always provided. You couldnt hardly wipe it off your hands
 
No sir! That's what and why cam lube is very important during initial breakin. Then..yes, they run a long time. I was in that business for a long time. I know how important it is. Even every mfg applies it to every new engine before it is started. Every single one. The only thing debatable about my post is moly vsa lithium based. Both will work but I prefer litium based cam/assmbly lubes. Finishes are measurable and specified in those applications, too. Oh, and "flat tappets" are not flat, by design. That makes them spin because the cam lobe is NOT centered on the tappet.
So how long does the lithium last on the surfaces? At best, some gets embedded into the asperities for a short period time. Biggest difference between the applications is that there is little, if any, relative movement under load on bolt lugs.
 
So how long does the lithium last on the surfaces? At best, some gets embedded into the asperities for a short period time. Biggest difference between the applications is that there is little, if any, relative movement under load on bolt lugs.
That is exactly why I like it! Cam lube is subjected to very warm temps, way more pressure and all the while, is being washed off by engine oil while it dies it's job at 2500 rpm ish... As I said...we are asking far less of it in our application.
 

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