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Old Oct 17, 2004 | 07:41 PM
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Assembly lube?

Hey, I was wondering is cranes expesnsive assembly lube worth the money? Or will some assembly lube from autozone work just as good? Also, what do I use to pre-lube the main and rod bearings? Should I put some oil on there, or should I put some assembly lube?

Thanks for the help
 
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Old Oct 17, 2004 | 07:45 PM
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You want to use an assembly lube on the main and rod bearings. You'll want one with Molybdenum Disulfide, commonly just called moly. Most auto parts stores have it, as do most farm & barn type stores. I use CRC Engine Assembly Lube.
 
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Old Oct 17, 2004 | 11:28 PM
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I dont remeber now, does cranes lube have the moly in it? I used it on my bearings as well and it worked great.
 
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Old Oct 17, 2004 | 11:54 PM
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Originally Posted by FORD352V8
I dont remeber now, does cranes lube have the moly in it? I used it on my bearings as well and it worked great.

if it came with your cam, it is probably the Moly lube.
 
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Old Oct 18, 2004 | 02:37 AM
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After a bad experience with moly assembly lube on the rod and main bearings twenty years ago ( damn stuff plugged the oil passages in the crank), I never use the stuff anymore, motor oil or STP oil treatment works fine. The only place I use moly lube now is for a thin coat only, on the cam lobes and lifter bottoms to keep them from galling till the oil splash gets to them . I always prime the oil system before starting too.
 
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Old Oct 18, 2004 | 03:17 AM
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There is also the no.105 (I believe) white grease that you can use for engine rebuilding, but it can plug stuff too, basically you have to know where it should and shouldn't be used and how much. If you have the How To Rebuild Big Block Ford Engines by Steve Christ it touches upon this a little I believe. GM makes an oil supplement called EOS or MOS that is a good assemblly lubricant for certain parts. Like Baddad said though, you need to use the moly lube on your cam lobes and lifters.
 
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Old Oct 18, 2004 | 03:22 AM
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Also, while breaking in your engine at least for the first few oil changes, I would suggest using Valvoline's VR-1 Racing oil 10w-30 or 10w40. This oil has more zinc in it which supposedly helps greatly reduce wear. For more information on this go to www.valvoline.com
 
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Old Oct 18, 2004 | 12:18 PM
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I guess I got lucky. What should you use on the main and rod bearings then? Could you use just motor oil? I am gonna be building another motor soon and I dont want to clog the oil passages in the crank or anything.
 
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Old Oct 18, 2004 | 12:42 PM
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I'm sure that ARP has something for that, that GM (EOS, MOS can't remeber which) is good stuff for bearings. I woudn't use motor oil unless you didn't have anything else handy. STP would probably work good, Lucas Oil Stabalizer would make a good assembly lube, sticks real well and it says on the bottle that it is good for assembly.
 
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Old Oct 18, 2004 | 03:22 PM
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Originally Posted by FORD352V8
I guess I got lucky. What should you use on the main and rod bearings then? Could you use just motor oil? I am gonna be building another motor soon and I dont want to clog the oil passages in the crank or anything.
Just use motor oil, I use 20-50 Pennzoil for this. Eversince my fiasco with the molylube, that's all I've ever used since and have assembled probably 20 motors since then with either motor oil or STP, then primed the motor before startup, and haven't had one failure either. If motor oil is good enough for the engine at 6000 rpms, it's good enough at initial startup, as long as the system's primed. I prime the pump till the oil comes out of all the rockers.
 
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Old Oct 18, 2004 | 03:58 PM
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I wouldn't use moly lube on anything but the cam, the bottom of the lifters, and maybe the pushrods and rocker arm/valve tips.

Not on bearings.

I didn't use the moly lube on my first 390's cam, and it wiped in 5K miles. The next time, darn sure I put it on the second time around. Used the Crane stuff in the little black container. Never once thought of using it on bearings, too thick.

I used 20w50 on the bearings/chain and it worked fine.
 
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Old Oct 18, 2004 | 04:53 PM
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When you prime your engine, you need to turn it over by hand a couple times and then wait for like 15 seconds, then prime some more and do the same thing over. According to Joe Mondello this is the only way to get oil through all of the gallleries and passageways.
 
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Old Oct 18, 2004 | 07:37 PM
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NEVER use the Moly lube on bearings.

Lubriplate No.105 is all I use, its a white lithium grease. You can use ordinary motor oil, but the lubriplate will stick to the surface for a while, whereas oil will drip away and leave the surface with very little protection of startup.
 
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Old Oct 18, 2004 | 08:34 PM
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Originally Posted by Mattsbox99
NEVER use the Moly lube on bearings.

Lubriplate No.105 is all I use, its a white lithium grease. You can use ordinary motor oil, but the lubriplate will stick to the surface for a while, whereas oil will drip away and leave the surface with very little protection of startup.
That's what priming an engine before startup is for, but more oil stays with the bearings longer than most people think. I've torn down motors that sat for years without running and they still have oil on the bearings and journals.
 
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