1972 Johnson 25hp: I drained the l/u and some water came out before the blackish-looking oil. I noticed one of the screws--think it was the top one--had no gasket. The other one had a nylon washer. I bought some nylon washers that are the correct i.d. but slightly too large on the o.d. They will pull into the recess when the screw is tightened,slightly cupping the washer in the process.
What is correct,or at least useable,to seal these screws? Thanks for reading this.
What is correct,or at least useable,to seal these screws? Thanks for reading this.