Just recently my van started making a whirring\whining noise under acceleration. It's only doing it when it's in gear, not when it's coasting and not with the clutch depressed. It doesn't do it when the van's stationary either
The whirring note seems to be related to the speed of the engine; gets high as the engine speeds up. But it's difficult to tell as it is louder in 4th than 3rd and I can't hear it at all in 1st (maybe because of the engine noise and higher revs) I've read this topic here https://club8090.co.uk/forum/viewtopic.p ... g#p7859859 so it seems like it might be spigot shaft/bearing related although the wiki mentions a rattling noise from the bell housing which i don't have.
There's nothing that is actually going wrong although there's an oil leak coming from underneath which makes me worry about the loss of gearbox oil

Here's hoping that it's not the gearbox in it's death throes
Any advice appreciated
Jason