Manual Gearbox Breather

[Stagnant]

So. I cut a larger hole in the nearside of my transmission tunnel (as per jleyton's excellent advice - thanks Julian) to allow access to the level/filler plug on the gearbox. I put it up on ramps and drained all the old oil out (and found what is probably 3rd gears syncro stuck to the drain plug's magnet). Then refilled with fresh EP 80/90 GL-4 and made a new plate for my now enlarged hole, and all seems good.
Except......where is that bl**dy breather hole?!!?
I've tried a mirror, a torch and a broken wrist but cant see it anywhere!
I understand it's on top and near the front left cover plate bolt and very small, but I really can't believe how elusive it is!!!!
Any more clues, please?
Thanks, Mark.

[ampotter]

Hello Mark. The breather is just to the right of the bolt that you described. I used a piece of wire to locate it but it was a fiddle. Andrew

[Stagnant]

Thanks Andrew. I must have been so close! I'll have another go.
Mark

[mike@thenook]

Having re-built my engine and put the box back I annoyingly still have a tiny leak which I think must be caused by this blocked hole I also didn't know existed before - dammit! I replaced the selector shaft seals and all the others but still there is a very small loss of fluid which I think may be caused by an excess of pressure.
What I am wondering is if it would be possible/sensible to modify the filler plug so that it is drilled through the centre and has a very small tube sealed into it which is bent so as to vent at the very highest part of the box (or maybe a slightly bigger tube but with a very small say 2mm hole at the top. This way it would be easy to unblock the breather via the small 'door' cut into the LH tunnel.
I've read that some early TR's had a filler tube which doubled up as a breather pipe (bit like on an auto) so reckon on it being a not too difficult plan;
Anyone got any thoughts on this?

Cheers