Guys if you are using a rope seal make sure you don't cut it off to short or it will leak after a few hundred miles. Many people today don't know how to install rope seals. Many heavy duty truck engines used the pin mentioned above, this couldn't hurt. Had a guy bring in an engine once that wouldn't hold a rear seal after he had paid to have it overhauled, when we checked it out we found that someone had turned the seal area down when they turned the crank. An old fellow in the shop took a new seal and put a length of wire in the new rope seal. installed it and as far as I know it may still be holding oil and that was froty years ago. They used to do a lot of things that would be laughed out of the country today,but a lot of them worked. Lack of money was the mother of invention, any thing that might work beat walking.
Big Bill