snowmageddon 2014

[bhmmapping]

From farther down the thread:

Wow, guess I better get my facts straight, eh? I apologize to Rich and anyone I offended by implying you guys were wrong. Looks like I am wrong and that I should have done a bit more research instead of sticking to my long-time assumption on that coupler. Because I participated in a discussion of it a long time ago, I had the matter settled in my mind that it was a simple fluid coupler, and emphatically NOT a VC.

I'm also having a strange sense of deja vu here that I had almost exactly the same disagreement on this exact same item once. (you are all forbidden from doing a search to confirm this, BTW) Clearly I never did check into it. So, I promise I won't do that again, and that I'll look into what is now defined as clearly a true 80 viscous coupler - which ironically is an item I know a lot about.

Regards (sheepishly)

DougM

I was looking for this the other day and could not find it. This has everything you would ever want to know about the VC in it:

http://webpages.charter.net/raventai/HF2AV TRANSFER.pdf

specifically mentions snow in it's purpose:

"Making use of the highly viscous property of silicon oil, the viscous coupling type LSD utilizes the force
that is generated when the silicon oil is sheared to accomplish limited slip in the differential. This enables
the differential to restrain the rotational difference between the front and rear wheels, thus providing the
excellent vehicle’s driving performance over slippery terrain such as rough or snowy roads."

 

['74 UA FJ]

From farther down the thread:



I was looking for this the other day and could not find it. This has everything you would ever want to know about the VC in it:

http://webpages.charter.net/raventai/HF2AV TRANSFER.pdf

specifically mentions snow in it's purpose:

"Making use of the highly viscous property of silicon oil, the viscous coupling type LSD utilizes the force
that is generated when the silicon oil is sheared to accomplish limited slip in the differential. This enables
the differential to restrain the rotational difference between the front and rear wheels, thus providing the
excellent vehicle’s driving performance over slippery terrain such as rough or snowy roads."

Silicon oil, huh? I may have filled mine with regular 90 weight. I haven't noticed any difference in operation, though.

 

[bhmmapping]

Silicon oil, huh? I may have filled mine with regular 90 weight. I haven't noticed any difference in operation, though.

The silicone oil is in the viscous coupler, It is a sealed unit. The transfer case uses regular gear oil.

 

['74 UA FJ]

Roger that. I thought about that right after I posted.