2005 mercury 150

ptcoppola

Recruit
Joined
Dec 10, 2017
Messages
1
so with the lower unit off when i turn the spline shaft the prop turns. but when i turn the prop the spline shaft does'nt turn. is that normal? and is it still in neutral? i'm a novice
 

Mercurylips

Petty Officer 2nd Class
Joined
Sep 23, 2015
Messages
189
When you turn the drive shaft, can you stop the prop from turning by just slight pressure?
 

tommarvin

Ensign
Joined
Nov 22, 2015
Messages
999
Im going with the spline shaft is the drive shaft.
The drive shaft should not turn the prop shaft when in neutral.
Did you change/move the gear shiftier on the lower unit?
i would move/adjust the gear shiftier until the driveshaft does not turn the prop shaft before you install the lower unit.
 
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