molybdenum disulfide grease Vs assembly lube

[Redhunter]

Ok short and simple, What is the advantage of using molybdenum disulfide grease over Assembly lube when rebuilding an engine?

[TownsendsFJR1300]

I found this article that's pretty interesting and certainly worth the read IMO;

Assembly Oils, Greases and Lubes - Engine Builder Magazine

Reading this (^^^), different area's of the newly built engine would need varying degree's of protection.

IE; not so much cylinder wall protection (so piston rings seat vs a lifter against a cam vs a roller cam, etc.

Not sure if that article answers your question..

[Redhunter]

I found this article that's pretty interesting and certainly worth the read IMO;

Assembly Oils, Greases and Lubes - Engine Builder Magazine

Reading this (^^^), different area's of the newly built engine would need varying degree's of protection.

IE; not so much cylinder wall protection (so piston rings seat vs a lifter against a cam vs a roller cam, etc.

Not sure if that article answers your question..

Yes it does, because in the Yamaha Manual it is calling for the greases to be used on Cam lubes.,,, etc.

In mine line of work we use a lot of Lubriplate and Royal Purple assembly lube. But in my case it's large roller bearings and Bushings. So I can see how a cam lobe would need a different type of per start help
Thanks,
P.S I am going to ask this same Question to my Royal Purple Mechanical Reliability contact

[boscoe99]

In my former profession as an air craft mechanic it did not matter if grease is superior to assembly lube or vice versa. What mattered is doing what the manufacturer said to do.

If the service manual was not followed then I was subject to being fined, losing my license, or having it suspended, or going to jail. If the license was lost it would have been the end of a career as an air craft mechanic. Worst worst case is that someone could die because I simply failed to follow instructions.

Why is it so difficult to simply follow directions?

[Redhunter]

In my former profession as an air craft mechanic it did not matter if grease is superior to assembly lube or vice versa. What mattered is doing what the manufacturer said to do.

If the service manual was not followed then I was subject to being fined, losing my license, or having it suspended, or going to jail. If the license was lost it would have been the end of a career as an air craft mechanic. Worst worst case is that someone could die because I simply failed to follow instructions.

Why is it so difficult to simply follow directions?

It's not that I didn't want to follow the instruction, I just thought that someone had a better way.... And Like everything else OEM want you to buy there Stuff