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Just a stupid question here......has anyone ever removed the plug on the very bottom of the crankcase?.....I have cam chest open and was just kinda thinking about taking out the plug and pouring some fresh oil in inner bearing holes and draining out bottom to maybe help flush the lower end of any sludge whatever. Is this a good or bad thought?......any input as to other types of oil/gunk remover etc that would work also?.
Bad idea and totally unnecessary. I believe that plug is red loctited in and I've heard of people cracking / stripping the case when they remove it or put it back in. If you've changed you oil regularly there is no sludge down there.
The company that makes that Scavenger oil change gadget has a video on removing this plug as part of using their system on the newer touring bikes. You remove that plug and install a fitting that is supposed to help remove more dirty oil than using just the drain plug. The video shows them removing and replacing the plug after the oil change is done. They don't give any warnings about removing or reinstalling the plug, and I'd think that if their customers had issues with that plug they'd have a big problem to deal with. My service manual also refers to removing the plug, and the torque value to installing it is pretty close to the torque for the drain plugs. But I'd personally not remove the thing unless I had a reason.
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Crankcase plug
