What lube for Cam Break-In (Lunati) - Chevelle Tech
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  #1  
Old May 12th, 04, 8:24 PM
Twilightoptics Twilightoptics is offline
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Got my solid flat lunati cam today and it didn't come with any break-in lube.

Should I use the same engine assembly lube that I used on the bearings, or do I need something specialty? My first comp cam I used the engine breakin lube stiff hydraulic springs and had a hard starting the car and it worked fine.

Input appriciated!
Thanks guys
-Paul
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  #2  
Old May 12th, 04, 8:31 PM
Pat Kelley Pat Kelley is offline
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Black (very dark gray, really) Extreme Pressure Moly lube works very well. It stays on the lobes better than Comp's red stuff. It's a good idea to work the lube into the grains of the lobes. Don't be stingy with it. Put some on the bottom of the lifters, too.
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  #3  
Old May 12th, 04, 8:35 PM
Twilightoptics Twilightoptics is offline
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The stuff I've got is a dark gray moly lube. That's what we used last time. Put it alllllll over the cam, bearings, bottom and side of the lifters.

Cool, thanks Pat!

With any luck she'll be down to waiting on pushrods tomorrow!
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  #4  
Old May 12th, 04, 9:30 PM
67chevy2 67chevy2 is offline
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Paul; Moly lube should not be used on the bearings or sides of the lifters,as it is a bit too abrasive.Use the red assembly lube or plain motor oil.Also,use the moly on the distributor drive gears on cam and distributor. Steve
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  #5  
Old May 12th, 04, 9:34 PM
Twilightoptics Twilightoptics is offline
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Hmmm... but the moly is good for the lobes?
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  #6  
Old May 12th, 04, 9:41 PM
67chevy2 67chevy2 is offline
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Absolutely! Use it on the lobes,gears,and bottom of the lifters,but not on bearings.Bearings are comparitively soft,and the molybdenum particles(little ball bearings!) can cause bearing failure .Some cam companies even recommend a non-bypass type oil filter adapter to keep the moly from possibly getting to the bearings during break in. Steve
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Old May 12th, 04, 10:19 PM
Twilightoptics Twilightoptics is offline
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How come the moly is good for rod/main bearings, but not cam bearings? Different material?
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  #8  
Old May 12th, 04, 11:15 PM
Wolfplace Wolfplace is offline
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Quote:
Originally posted by Twilightoptics:
How come the moly is good for rod/main bearings, but not cam bearings? Different material?
=
Who told you it was good to put on rod & main bearings?
You only want to put it on the lobes & cam gear as already stated.
For bearings use something like Clevite Bearing Guard or if you are going to start your engine right away good old engine oil works quite well.
My personal choice is Clevite Bearing Guard for bearings & Isky or Red Line Assembly Lube
(not sure but I believe they are the same thing) for the cam & lifters.
I don't use the Moly paste any more but that is my preference, lot's of people do.
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  #9  
Old May 12th, 04, 11:55 PM
Twilightoptics Twilightoptics is offline
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Stuff made by CRC "Engine Assembly Lube"

Extreme Pressure - Anti Seize - With Moly Graphite

"Prevents contact friction, galling and wear during engine assembly, initial start-up and break-in"

"Use on : Crankshafts, camshafts, gears, bearings, valvestems, lifters, pushrods and all areas of rotational or sliding contact."

Typical Specifications:
Base Type: lithium
Color: Black
NLGI no: Grade 0-1/2
Drop Point: 360ºFMin
Water Resistance: Excellent

Contains Mineral oil(heavey), lithium soap, calcium dinonylnaphthalene sulfonate, zinc dithiophosphate.


Now I'm royally confused. If this isn't what you use on the bearings, WTF do you usE?!
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  #10  
Old May 13th, 04, 12:25 AM
Wolfplace Wolfplace is offline
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If you are asking me what I personally use on bearings as I said I use Clevite Bearing Guard.

If that CRC is a grease like substance my preference would be to not use it on the bearings but it would be fine for the cam lobes & gear.
This does not mean you cannot as people do & have no problems.

What folks are talking about here is the thick moly paste like the ARP stuff you put on bolts & if you use this you will find it does not mix well with oil & you will have a filter full of it.
The stuff you have has some moly in it but it also has some excellent other extreme pressure lubricants in it like Zinc which is what GM's EOS has in it among other things & would probably be an excellent break in additive if pourable.
Is it a grease like base or is it pourable like heavy oil?
There is nothing wrong with some Moly in the oil in fact most oils have some in there additive package.
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  #11  
Old May 13th, 04, 12:42 AM
Twilightoptics Twilightoptics is offline
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It's more like oil than it is grease. It's got a more stable presence than oil though.

Whew. I was getting confused! I was afraid I might have to open everything back up again!
:: cringe ::

Sweet deal. I'll use oil on the bearings and lube the cam up good with this stuff.

THANKS!
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