Reply To: Johnson HD25 Crankcase Leak

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April 17, 2020 at 1:59 pm #200279
aquasonic
Participant

    You may need to heat it just to get the crankcase apart being that it’s epoxied together now. Once apart, gentle heating with a propane torch works wonders for removing JB Weld so it should be helpful cleaning up the mating surfaces. Plastic razorblades are good for scraping the mating surfaces without scratching them. Be patient, and whatever you do don’t lap the mating surfaces. Good luck!

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