This is normally done with the engine gearbox out of the car as i did last year BUT with the right tools is possible in situ.

Read how it’s done at ……. http://diary-of-mgb.blogspot.com/2011/10/that-seals-it.html
information about the MGB and MGB GT classic cars including news and reviews, techs and specs – also updates on repairs, servicing and diy modifications I do on my own MGB Roadster. I am no expert on these cars – just a keen enthusiast – but I hope these posts will be of interest to others with a similar interest
This is normally done with the engine gearbox out of the car as i did last year BUT with the right tools is possible in situ.

Read how it’s done at ……. http://diary-of-mgb.blogspot.com/2011/10/that-seals-it.html