Sorry it's on a 1300 I guess using the plugged cover and not spending 20 plus dollars on a manufactured plate will make moisture?
Others report doing this or something similar. The concern that some have raised about this approach is the possibility of condensation forming in the reed valve remnants since they are no longer connected to hoses that can exhaust the collecting gases and condensation. If this condensation does occur, it could lead to corrosion in and around the reed valves. I have no first hand (or second hand) evidence of this occurring. It is merely the normally cited reason for not taking the approach you describe.
I have some non-dimpled plates available for no cost (you pay the shipping). They are black, not chrome.All engines build moisture as they warm up to operating temp then it is evaporated and yes the valves are a place to get trapped at. but my point is the original cover with a steel plug in the hole with pipe sealant on it is the same as a plate over it but does not cost the same
That's what happens to a lot of threads.Thank you someone finally understands what I'm talking about it was just a cheap alternative I have read the article on doing the mod understand about condensation. If that cover being a half inch higher than the plate caused a problem they would have solid plugs for the tappet covers the whole engine heats up and heat rises simple solution turned into a toilet