Great video, exactly the answer to the question ”how viscous couplers work” that I had!

Thanks for sharing. Very informative !

Interesting.. So it acts exactly like a clutch--- accept its not a direct friction connection--- so the fluid still allows it to slip so that there is no binding from front to rear... Very cool.

can you change the oil in couple that are sealed ? (subaru g3x ) ?

Can you advise me on what viscosity silicone oil to put in a Honda viscous LSD? I want to rebuild/refresh it before putting my transmission back together. The fluids I see range from 30k to 150k. I read that Honda viscous couplers came with 30k but I can't find info on what the LSD came with.

If the oil is low will it cause it to go bad or act like it’s bad?

Hey man thanks. I bought my teen son a 2004 Impreza Outback 5-speed, 156,000 miles. AWD of course. We didn't notice a whine noise, but it just started clicking or tapping around curves and acceleration. I can feel the tapping in the gear shift handle. And it seems it sometimes loses AWD grip when it taps. So I think the center diff is binding the output shafts sometimes. I found new ones with 2 yesr warranty for $185 on ebay, or OEM from Subaru for $600+ 6 or 12 month warranty. Any suggestions?

Ben, What do you charge for a rebuild?

Hey where to buy fluid and how to know what fluid for a specific vehicle that says (non rebuildavle, even though they are dismantleable) Vehicule is a 2004 suzuki aerio. Thanks

Hey buddy im looking to have my bmw e30 325ix VC coupler done how do I get ahold of you?

18 dec 2023 5:27 am est ( utc - 5 ) : thanks . just-now i finish-seeing this movie for 2-nd-time . i forgot date-time during i see this movie for 1-st-time .

Is there anything you can do to upgrade them to work better/handle more hp......besides chsnging the fluild......and if you were to change the fluid is there something just flatout better?

@WRD_Ben

3 жыл бұрын

Plenty of tuning options. Check my Facebook page White’s Racing Development

Is it possible for one of these to be built like a torque converter where it has a set of stators and rotors, with one forcing the fluid through the other for a more positive lockup effect?

@WRD_Ben

5 ай бұрын

There’s now pump for fluid flow. Would be a challenge.

Hi, I'm in the UK and run a landrover freelander, my VC is solid! I removed it from the vehicle and you can put a large pipe wrench on either side of it, in other words one on each propshaft and it is solid! would a rebuild work on this do you think? Luckily I caught it before it damaged the transmission.

@wickedsatan1

2 жыл бұрын

For how much sir?

@shaanee

2 жыл бұрын

what happened since then?

Theoretically, shouldn't you be able to tune the amount of lockup and when, by varying the thickness of the viscous fluid?

@WRD_Ben

5 жыл бұрын

Ryaneg6freak yes. That’s what I do. I build viscous couplers. I have couplers in all the Prayoonto cars, OSTEM/Speed factory, frustrate EG ETC ALL customers of mine

@ameirabbden5290

4 жыл бұрын

Does it means that the fluid passing through is acting like a friction plate on clutch set??

@calholli

3 жыл бұрын

@@ameirabbden5290 exactly... pretty cool... So it acts as a locked clutch but still allows "some slip so that there is no binding from the front and rear wheels.

@duuude534

2 ай бұрын

@@kw2519the trans oil has no effect of the viscous coupling. The coupling is a sealed unit with its own silicone based fluid

@kw2519

2 ай бұрын

@@duuude534 ya, that was 3 years ago, I’ve since learned a lot more about these cars.

These all rely on a mixothixotropic fluid that changes viscosity (thickens) under load.

What vehicle does this coupler come from?

@calholli

3 жыл бұрын

Subaru uses them... I'm sure their are others too.

boundary layer, Tesla turbine tech cool