Home › Forum › Ask A Member › 1970 Johnson 25 (22 CI) questions when a seal turns into an overhaul › Reply To: 1970 Johnson 25 (22 CI) questions when a seal turns into an overhaul
Engine was in a barn filled with mouse nest, hobbyist outboard mechanic cleaned it up externally and got it running. Ran it two seasons ago after purchasing from local hobbyist mechanic. Ran okay, but was only pushing as good as my dad’s 1960s 18hp I ran this year . Was also a bit hard to idle and started fowling points so I confirmed upper seal bad so started tear down last winter. Didn’t get far because dad wanted me to run his 18 so I did last summer. Got back to this engine because it does me no good sitting apart in the basement engine laboratory. And the extra couple ponies would be nice. The scoring is significant looks like a soft seize or lean detonation. Damage to top of upper ring landing is extensive, I’m surprised it hadn’t cracked away in that section.