I agree AVB, but it is not like it is going to cost a lot of time and money to give it a try. I know when I was rebuilding lots of Enfield motors a few years ago, depending on the gasket set you got from India, you either got a thick or a thin timing cover gasket, I usually was able to use the thin gasket on the older motors because things were a bit worn but on the newer motors I had to use the thicker gaskets because the thinner ones would lock the motor up. Might have also had something to do with Indian machining tolerances as well