[looneytunes]

Hi from England. I have a 1976 Carrerra 3.0. I am in the process of stripping the engine for a refresh. I have had this slight oil leak which drips onto the heat exchanger causing smoke. Embarrassing and annoying. I think I have traced it to the cam tower to heads join. On strip down I have noticed the crankshaft oilway end plug has also been leaking. Can I replace these plugs myself or would I need to leave it with a machine shop? Do Porsche supply these and what is the part number? Would it be a case of crankshaft in the oven, plug in the freezer then fit? How do the machine shop actually fit them. Once done is it worth JD weld also? Thanks in advance for any ideas.