It is leaking oil into left engine cover. Can anyone offer advice about getting to the seal behind flywheel? The flywheel has rounded edges so a standard puller may prove problematic. Before diving into this, I would like to know any possible pitfalls. The "service manual" I have is not much help. Thanks!

 

What would be the correct puller type and size that screws onto the flywheel. I did not see a part number referenced in the service manual. Thanks!