Thread: Viscous coupling locked?

Use a crowbar in the unis to apply torque and it will give very slowly. A seized viscous tends to take out front CV joints.

If it's not seized... the easiest way would probably be to lift a front and a back wheel. That way you should spin both open diffs. I have two of those borg warner piles of merde here .... safetly removed from the cars so they cause me no further grief. I must say the LT230 is much noiser, even with the extra sound deadening I have added. But at least it won't leave me stranded with the CV joint taken out.

seeya,
Shane L.

I put it back in the shed.
Dont quite understand. If it was seized with one back and one front wheel up would not they both turn .
I just thought with one wheel up I should be able to turn it but it seems it must take a lot of effort so havnt bothered further.
Keith

They do take a bit of effort to turn. I have replaced mine with an LT230 as well. And I'm glad I'm not the only one that thinks they're noisy.

Originally Posted by 123rover50

I put it back in the shed.
Dont quite understand. If it was seized with one back and one front wheel up would not they both turn .
I just thought with one wheel up I should be able to turn it but it seems it must take a lot of effort so havnt bothered further.
Keith

Google them. THere is specific tests you can do to verify the viscous unit is still working (from memory is was a big bar off a front wheel nut and constant force....). As suggested a pinch bar through the uni joint will do the same thing. If you can't move it at all .... with a decent bar ...don't drive the car .... You'll shatter the CV joints..... Want to guess how I know this

seeya,
Shane L.

Originally Posted by 123rover50

I have not noticed this before, but giving the Sherwood a service I could not get to the front shaft grease nipples so thought OK jack up a front wheel and I should be able to rotate the shaft. No good.
T,box and Auto in Neutral, Hand brake off and still wont turn. It tries to turn the rear shaft at the same time. According to the book it should not lock up untill slipping generates heat.
Is mine permanently locked therefore stuffed?

Keith

G`day ,

we had 3 we have 2 now , each one if a front wheel was lifted etc , using the breaker bar for the wheel nuts

which is about 14" by applying constant pressure the bar would slowly move as the wheel rotated .

There is a correct time distance measurement but if they moved for mine that`s enough .

If quick short pressure is applied nothing happens as if seized .

I haven`t had the need to do it but a seized one would turn both wheels if front and back off the ground but i would think a good one may give the same outcome .

The reason all 3 vehicles had VCs that worked is because i have a spare Borg Warner in the shed with a good VC if not for that i`m sure at least 1 would have failed .

Thanks all. It seems like I did not try hard enough. The CV,s are OK so presumably the VC is too. Its a 92 and done 223000 k,s

Keith

Originally Posted by 123rover50

Thanks all. It seems like I did not try hard enough. The CV,s are OK so presumably the VC is too. Its a 92 and done 223000 k,s

Keith

The offer stands Keith