I suspect that was the reason the Austen came up with using 45° at the hub, instead of the 90° suggested.Interesting reading. As pointed out other than compensating for the gearing issue it's the same as bench testing them which is a service currently available.
Yes that makes perfect sense.I suspect that was the reason the Austen came up with using 45° at the hub, instead of the 90° suggested.
Obviously turning the hub through 45° results in the VCU turning almost one complete revolution. This is considerable more than Bell actually turn them on there bench test.
So because the number of degrees of rotation is higher. Accuracy will be proportionately lower and more repeatable.
A man with your welding skills should have that done in a couple of hours. Might make sense to put the fluid in first, then each disk separately, otherwise it takes ages to mix it down through and between the disks.View attachment 110167
My old vcu stripped down and cleaned. Need to get around to rebuilding it and testing it.
Can't you put the discs in one at a time drizzling a bit of fluid between them to get it in a bit quicker.
I guess you could but this stuff is like working with silicone sealant as in very very messy.Can't you put the discs in one at a time drizzling a bit of fluid between them to get it in a bit quicker.
Your already on the road to fixing it yourself. Here's how I did it.Hi all,
Back in the land of money pit, sorry, Land Rover.
Got a pretty decent 53plate TD4s manual, 122k on the clock.
Not yet done many miles in it (thankfully !)
Removed propshaft and VCU after doing the one wheel test, found at that time that the amount of force needed to actually get the wheel to turn, was frightening, no binding of brakes etc.
Got the VCU off the shafts, drilled two smallish holes diametrically opposite in the end plate to see what comes out.
Looked like something from Quatermass and The Pit, very thick black treacle.
Now in the vice, the unit can only be rotated with LOTS of force and estimate that to turn 5degrees takes 2 minutes with a 17mm spanner on a refitted end bolt (and painful hand).
I recon this is well and truly 'goosed', a second hand complete prop now on its way to me, think I may just have saved the transmission..........going to open up the holes drilled in the VCU, got a variety of 'fittings' to fill the holes when done........hope the replacement has less resistance?????????
Hi, yes seen your excellent post on re-conning the VCU, been glued to forums for info....many thanksYour already on the road to fixing it yourself. Here's how I did it.
https://www.landyzone.co.uk/land-rover/how-to-recondition-a-vcu-yourself.307445/
Not unless the owner has bigger wheels on the front than back.In my opinion lifetime performance is longevity........... I don't think you'll see a genuine VCU fail at 20k -30k.......
It's quite possible for a VCU to fail in less than 30K miles. It's unusual but not impossibleIn my opinion lifetime performance is longevity........... I don't think you'll see a genuine VCU fail at 20k -30k.......