I have the pressure settings in PSI somewhere if you need them. The pressure is only released when forward gear is selected. Once the piston in this has pushed out and disengaged forward gear when neutral is selected it remains under pressure holding the forward clutch cone out of contact with its mate while in neutral and also while reverse is selected and used. The hydraulic servo cylinder which disengages the forward clutch cone is located on the back of the box,near the prop drive flange or reduction box and is held in the gearbox body by i think 3 bolts. The get yer home feature if the hydraulic pressure fails''. Hydraulic pressure is only used to obtain neutral and reverse. ![]() I doubt that unless the pressure is seriously too high. Many thanks bizzardthe suggestion i got was that the shims had possibly been increased already to increase the pressure for the ahead gear to release. ![]() 50 marine gearbox - Boat Building & Maintenance.
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