Gear Box Plug? Please Help!

Hi everyone. Whilst poking about under my Defender 90 300 TDi (1997) today, I've noticed what appears to be a drain plug under the gearbox is missing. I've checked the Haines manual and the original handbook and the photos in them of the gearbox drain plug look nothing like this. Although the Landy runs lovely I'm worried that the gearbox may have no oil in it, I haven't noticed a load of oil on the drive other than the usual 'Marking It's Terratory' drops. Is it a drain plug or simply an inspection port? Any help would be really appreciated as this car is my daily run around. I'm new to this posting on forums stuff but I'm gonna try and insert a photo to this post.

Don’t worry @Big Bad Jon
That’s a hole to the clutch. Needs blanking off when wading & remove once done.
No fluid should be coming out that hole

What big bad John said.

Hicap phill said:

Don’t worry @Big Bad Jon
That’s a hole to the clutch. Needs blanking off when wading & remove once done.
No fluid should be coming out that hole

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Hi, thanks for that, I did wonder if that's what it might be, but began to worry about it

I fill mine with helium before putting the plug back in.
Makes the clutch lighter.

Lol, not the first time it’s been asked but always makes me chuckle

Huddy84 said:

Lol, not the first time it’s been asked but always makes me chuckle

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I had a feeling I might look a bit daft over this question but I guess I'm one of lifes natural born worriers

ask any questions you want,.you may think they are daft but the answer could save you a fortune.