Thread: Viscous Coupling replacement

I am most impressed with the destruction of the VC, I have never heard of one splitting before. Due to the circumstances of the failure maybe you should get it mounted and offer it up as a trophy for the best placed VC driven car in the W4 challenge

Originally Posted by wayneg

I am most impressed with the destruction of the VC, I have never heard of one splitting before. Due to the circumstances of the failure maybe you should get it mounted and offer it up as a trophy for the best placed VC driven car in the W4 challenge

Good idea . It will be interesting to see where we all finished.

Gary

Originally Posted by mtb_gary

Good idea . It will be interesting to see where we all finished.

Gary

'Finishing' should be reward in itself... for a Land Rover....

Would be equally instructive to see how 100% standard cars are placed in such competitions... No TruTracs, diff locks, huge tyres or lifts... - even down to original type and size tyres/rims...

Decision time now with respect to fluid choice in the Transfer Case.

The manual recommends ATF Dexron III, however, I notice there are a few posts around recommending Agrifluid 45 (where do you get it?). and also MobilFluid 424 or Castrol Agri AS ATF. Pros and Cons for each? Not one negative comment after being used for any of them? Many claims of reduced whining etc, but would this have been reduced just by an oil change to the ATF Dexron III. I do not have any problematic whines coming from the TC. A few too many wines from the cellar (but that's another story ).

At this stage I am swaying towards ATF Dexron III.....?

Gary

If there's no issue re. T/F case noise then go with Dex III. I started using Mobil AgriFluid several yrs ago because of a growing whining noise. Then again, SWMBO reckons I've got selective hearing a refill with DexIII hadn't made much, if any improvement ...but the noise was reduced significantly with the Agrifluid. I don't put up many Km per year (<10k)...

Just be aware that there is an oil pump in the BW and you can break it if you put too thick oil in it.
The BW chain drive transfer is in millions of vehicles in various guises and I spent hours on Google trying to find if there were any better oils , after my output shaft went.
I couldn't find any worthwhile discussion anywhere.
One thing I know doesn't work is Molybidnum Disulphide as when I pulled off the rear extension it was coated all over the inside of the housing with none on the shaft.LOL

... May as well ask....

Is there any advantage (over normal, mineral based Dex III) in a 'synthetic' version? Or 'semi-synth' ?

In the auto trans?
BW transfer case ?

Mine had Castrol Synthetic Transmax Z from about 80KK or so and changed about every 20KK. ( plus Nulon at times and plus Moly at times)

Rear output shaft almost completely gone at 200KK.

I reckon it was the most pampered BW on earth, although it did 200 Ks once with almost no oil in it when a reasonably well known specialist "forgot" to refill it after the V8 rear main seal and front pump gasket on the ZF were replaced. But I doubt if that caused it.

Regards Philip A