Just an update - we bypassed the old valve, and, having run it for a month, we can't tell the difference.

Yes, that's the one. I don't think my old SJ goes fast enough or brakes quick enough for it to do much.. Thought I would just by-pass it.

I have a standard SJ413 with rear drums, and the valve is leaking badly. If I remove it, how much does it affect the braking - that's assuming it was working before anyway! I've looked for a replacement, and can't find one anywhere.

Charles

Well, unfortunately I was correct.. Just kept sliding the propshaft until the oil seal popped out. Doesn't look as if it has done much damage to the casing, but difficult to tell until I try a new bush in it. Propshaft is fine.

I think I may know what the problem is. Looking at the cross section drawing, if the bush had seized on the propshaft, and was spinning in the end casing, then it would give the symptoms I have. It would slide in and out, but bump against the oil seal. It should pull out with the oil seal with enoug...

I thought about the shaft moving, but the gearbox works fine. Looking at the cross section drawing,I can't see anything to stop it. The splines must be fine, as it slides smoothly. Even if I remove the gearbox, I still can't take the end case off until the propshaft is removed. I can't be the only p...

Yes, I can slide it about 25mm. the odd thing is that, even slid right out and pulling hard, it still spins free with no rubbing. So I assume it must be something on the spline rather than the casing or bush.

I can slide it quite a way, so using the mass of the propshaft, I'm giving it a good wack. I've tried a lever as well but not easy to get a good pull. It feels as if its coming up against something really hard. It doesn't jam at all, which I would expect if it was a burr or corrosion etc.

I have been trying to remove the drive shaft to replace the oil seal. it will slide on the splines, but comes to a hard stop, and will not come off. I've had a good look at the diagrams, and cannot see anything obvious. the only thing I can think of is that there is a very slight play in the output ...

Thanks Scottie.

Regards

Charles