MGB Sprung an (oil) Leak!

[IDunnoWhatImDoin]

Things were going well, and then I noticed a huge oil leak on the floor...bigger than usual on my 1977 MGB.

I've attached photos of the general region that is "leaky" - these are all on the driver's side)Any ideas of where to start to try and plug this?

 

[Grantura_MKI]

Looks like the tappet covers. Moss sells an up grade that is rubber, not cork.
This job can be labor intensive at times.

 

[IDunnoWhatImDoin]

Thanks! You were right. I replaced the front side cover (wasn't aware of it), and got the gasket all set up right, and no more leaks.