I have a 1972 glastron I recently bought as a project boat and I'm having troubles with the motor. The motor is a 1967 Johnson golden meteor 100 HP and I'm currently unable to remove the lower unit. I have taken off the 4 nuts that are exposed on the outside of the unit and removed the single bolt that is on the inside near the hose that goes into the impeller housing and I'm still unable to get the lower unit to move at all. The motor did not come with an owners manual or service manual so until I'm able to buy those things I'm at the mercy of everyone else's help. Thank you and any advice is greatly appreciated!