Mercury 75, 2003 wont shift forward to neutral under load

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
redex
Posts: 1
Joined: Mon Jun 19, 2023 6:30 am

Mercury 75, 2003 wont shift forward to neutral under load

Postby redex » Mon Jun 19, 2023 6:35 am

I have 2003 Mercury 75 ELPT four-stroke-power-cycle engine that will not shift from forward to neutral under load. All other shift changes are fine.

If the engine is turned off, the shifts are perfectly fine.

I have removed both [remote actuator] cables from the engine and operated [the shift lever] by hand: the gear case shifts fine with engine off, but with the engine running the gear case wont shift forward-to-neutral, even at a speed where the engine is almost stalling.

Q1: am I missing some adjustment somewhere?

Q2: is the cause of this abnormal behavior due to or is the problem in the gearbox or lower unit?

Your help will be appreciated.

Regards Neil