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"Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 1:58 pm
by blind squirrel
Manual calls for using this in multiple places. Did a Google search and came up with everything under the sun. What is "Molybdenum disulfide oil" and what brand(s) are recommended?

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 3:58 pm
by raYzerman
Moly products, there are several..... paste or grease for lubing your splines, assembly paste for putting your engine back together..... haven't heard much about moly oil..... examples of applications you saw?
Moly is very slippery, withstands high heat. Usually a powder form and is added to greases e.g. (you can buy the powder and mix up your own), or a spray to coat metal surfaces such as engine bearings. Back when I was playing with hot rods you could buy moly additive for your oil... don't use it in your Briggs and Stratton, DAMHIK.
We could talk about titanium dioxide, it will take more heat than moly.

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 4:01 pm
by wheatonFJR
raYzerman wrote: Mon Sep 24, 2018 3:58 pm ...We could talk about titanium dioxide, it will take more heat than moly.
Let's.

So waddayou know Ray?

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 5:28 pm
by blind squirrel
Image

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 5:40 pm
by raYzerman
Nuthin' much as usual.... first off I got my names mixed up, I meant Tungsten Disulfide (WS2).... found a local company importing and selling tungsten disulfide grease making all the claims, I wanted something for my mower deck bearings, could not find moly grease with any more than 3%, I wanted 25%+..... checked out the science behind it, seems true enough, great in industrial applications. That stuff is expensive, C$36/tube.. when I bought it originally it was less than half that. Buncha info out there, here's a coupla samples.
https://www.lowerfriction.com/product-p ... tegoryID=5
http://www.microsurfacecorp.com/ws2_tun ... ulfide.php

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 5:48 pm
by raYzerman
I think the OIL is actually assembly lube, used when putting stuff together like engine and tranny bearings, surfaces that need a lube until the engine fires up and circulates oil.... pretty standard stuff in bike and auto engines and rear drive internals. Moly paste (grease) is typically used on splines... made popular by Honda with their softer rear drive splines for example. Did you see any particularly interesting applications in the FSM for the oil?

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 5:48 pm
by tominca
I think what throws this off is the term "oil". Molybednum disulfide grease or paste are more common terms. I bought a small container of "Honda Moly 60 Paste" grease 10 years ago, and still have half of it. The current product is "Honda Moly Paste M77". They increased the molybednum content but a single container is still a lifetime supply. A little bit goes a long way. This is a gray metallic grease that works great on splines and gears where a lot of pressure and heat can occur. I also use this grease on brake pins on the cars, and a few other places where a high temperature moly grease is called for. I use a solder flux brush to apply the grease to the splines when I change the rear tire.

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 5:54 pm
by raYzerman
Tom, I'd highly recommend a silicone brake grease for brakes, as the lithium based moly paste can't handle the temps. The moly can but the grease can't. On brake pins that are enclosed with rubber boots (FJR rear caliper), use the silicone as it will withstand high temps. If the brake pins are exposed (like FJR front calipers), don't put any grease on them at all, better not to have anything on there that attracts dust/dirt.

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 6:11 pm
by wheatonFJR
raYzerman wrote: Mon Sep 24, 2018 5:48 pm ... Did you see any particularly interesting applications in the FSM for the oil?
blind squirrel wrote: Mon Sep 24, 2018 5:28 pm Image
The squirrel with bad eyes posted something pertinent regarding location already.

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 6:33 pm
by raYzerman
That table not in the FSM that I could find...... I'd still say the oil = assembly lube. Is the table from Haynes or Clymer?

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 6:55 pm
by blind squirrel
raYzerman wrote: Mon Sep 24, 2018 6:33 pm That table not in the FSM that I could find...... I'd still say the oil = assembly lube. Is the table from Haynes or Clymer?
Thanks. Assembly lubes came up when I googled it. The info came from a Tenere service manual. I know what to buy now.

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 7:18 pm
by Pat Mitch
Could you see if they have any blinker fluid too. They don’t have any here in the States. My wife needs some in her bike, since she like to leave her blinker on.


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Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 8:33 pm
by Bounce
Ever since machinist vo-tech (where I was first introduced to the word "Molybdenum"), I've pronounced it as needed when saying it but read it internally as "mulblnmbmnbm".

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 9:24 pm
by wheatonFJR
Bounce wrote: Mon Sep 24, 2018 8:33 pm Ever since machinist vo-tech (where I was first introduced to the word "Molybdenum"), I've pronounced it as needed when saying it but read it internally as "mulblnmbmnbm".
Molly-be-damned...
...or Mo-Lib-duh-numb

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 9:52 pm
by ZX 11
Loctite LB 8012. Bought it recently on Zoro.com. None of the local auto parts stores by me carry it.

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 10:11 pm
by wheatonFJR
ZX 11 wrote: Mon Sep 24, 2018 9:52 pm Loctite LB 8012. Bought it recently on Zoro.com. None of the local auto parts stores by me carry it.
Which parts do you use it on, typically?

Re: "Molybdenum disulfide oil"

Posted: Mon Sep 24, 2018 10:14 pm
by Powerman
LB 8012 anti-seize is not what I would use where moly grease is spec'd.

I guess it could be used in some light duty lubrication

Re: "Molybdenum disulfide oil"

Posted: Tue Sep 25, 2018 9:41 am
by Bounce
wheatonFJR wrote: Mon Sep 24, 2018 9:24 pm
Bounce wrote: Mon Sep 24, 2018 8:33 pm Ever since machinist vo-tech (where I was first introduced to the word "Molybdenum"), I've pronounced it as needed when saying it but read it internally as "mulblnmbmnbm".
Molly-be-damned...
...or Mo-Lib-duh-numb
Understood and thus the "when saying it". I suspect I'll still internalize is as mulibnbmnbnmbnmn

Re: "Molybdenum disulfide oil"

Posted: Tue Sep 25, 2018 1:16 pm
by Hppants
Funny coincidence, Bounce.

After I've been hitting the shampoo a while, everything comes out like "mulibnbmnbnmbnmn"....

Re: "Molybdenum disulfide oil"

Posted: Tue Sep 25, 2018 8:39 pm
by ZX 11
Powerman wrote: Mon Sep 24, 2018 10:14 pm LB 8012 anti-seize is not what I would use where moly grease is spec'd.

I guess it could be used in some light duty lubrication
It is 65% molybdenum disulfide paste which is slightly higher concentration than the Honda Moly 60 that most seem to recommend but Honda seems to no longer sell. I haven’t used it on the splines yet but would be interested to know why this is not the right product to use.