Originally posted by oceanpro
At the last leg oil change of my Johnson 115 I noticed that on the end drain screw there was a small amount of what I could best desribe as 'iron filings'. The srew is magnetic. Should I be unduly worried?
If you mean you've changed the oil many times before and there was no metal then, yes you should be worried. If it is the first time the oil has been changed then, no you shouldn't. But, keep an eye on it. The magnet is present because this happens in normal use. Most of it is likely to be from the corners of the dog clutch. Each time you change gear there'll be a couple more particles into the oil.