I have a glastron ssv 163 from 1984 with the reference engine.<br /><br />My problem is that the control box works very, very hard. In reverse mode the engine only increase the rpm a little, although the control this pushing until the bottom.<br /><br />I guess that is a problem with the cables, but i don´t know how to change this.<br /><br />I have tried to remove the control box to check it, but after remove the two screws of the control, I can't disassemble nothing more. It seems to be mada in only one piece. My control box is a OMC with power trim and cut off key.<br /><br />Is very similar that the OMC control box # 175943 but in white color.<br /><br />Do you somebody know if is possible disassemble and check into the control box?<br /><br />How can I change the cables?<br /><br />Thanks for the replies<br />Fernando