I also have a 2HP Johnson that only had 60-75lbs of compression, but I turned it over with a drill motor and it started but soon as I took the drill off it died. I have a piston and rings ordered for it from Greece, but it won't be here until late February. I have the powerhead off and am down to taking the crank and piston out, but I don't know how to get the bottom crank bearing and seal off. I have the 4 bolts out of the cover and put the crank nut on and tried tapping it down, but not sure if that's the way to break it loose or not. I don't want to break anything. I have the year manual for this R78R model but it just says to remove the 4 screws and lower bearing and seal housing, be sure all 28 needles remain in the housing, if bearing or seal are damaged, entire assembly must be replaced. No mention on how to remove the housing. Anyone ever had this off ? I have no idea if the entire assembly is even available. Many parts are not available anymore. Got this with a purchase of a 9.9 Johnson. Going to have more in it then they are worth, but I thought it would make a nice little fishing motor for trolling for crappies. I Need to know the best way of taking this housing off without damaging anything. Thanks in advance.