haha... I started to, but honestly unintentionally. I just wanted to change the gearcase oil to see if it had water in it. Apparantly, the previous owner could not get it to seal, or for whatever other reason, decided to glue the drain plug shut. Not that I could tell it was glued from the outside... I even went out and bought the proper sized screwdriver beforehand, but I just ended up stripping the slot. Not that I've ever done *that* before. If I had an impact bit for my air tool, things might have turned out different. But I ended up using a screw extractor to get it out, and then running a tap through it to try to clean out the hole. The threads were too much of a mess. Then it started raining, so I used an O-ring and some RTV to stop oil from dripping out. It looks like I will be drilling the drain hole oversize. I was planning on removing the lower unit anyway to get at the water pump and to clean the housing up. The housing has got some pitting where the paint flaked off.
No more boat work until the shed is done...
BTW, can you buy just a lower unit gearcase housing for an old engine (1986)? This is more of a curiosity question, since a new housing is probably more expensive than a decent used lower unit.
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