Thanks for input everyone. No evidence of mice, don’t know if something was used on it at some point that could have caused the corrosion. I’ll try to get it running and see what I’ve got from there.
Interesting, it does seem to be a red primer. Definitely some rust there too, I brushed the crusty stuff off before the photo. Hardly a spot of rust anywhere else on the motor, seems in good shape from what I can see on the outside. I guess a cooling water leak did that. I assume nothing...
Don’t think it overheated, but not 100% on that. It cranks. After I got the paint chips brushed and vacuumed I pulled the plugs, added a little oil, and did compression test (60 for both).
Is this an issue to address right away or wait and see? Want to try to get dads 9.5 running. Found paint peeling and rust on and around the exhaust cover. I did a light brushing to get the loose stuff off before I took the photo. Hasn’t been used in about 30 years. Dad bought it new. Never had...