2003 90 mercury lower unit

Bhollingsworth

Recruit
Joined
Aug 11, 2014
Messages
2
I have a 2003 90 mercury and when the engine is off and in gear u can turn the prop and there is a loud clicking, you can actually feel the click
 

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,941
+1. That's the overrun clutch in operation. When decelerating, like coming off plane when you cut the engine throttle, the engine rpms can drop but the prop rotation is locked to the water passing across it. The clutch allows the prop to slow as the boat slows regardless of how much slower the engine rpms are. Without it, when you cut the throttle the prop would cut accordingly and you could wind up with your teeth in your windshield if you had one. Grin.

Mark
 

Bhollingsworth

Recruit
Joined
Aug 11, 2014
Messages
2
I know that it clicks but it's louder than normal, running down the river last night and the motor just shut down, tried to restart and it acted like it was locked up when I hit the switch nothing even dimmed the lights on the cluster knocked it in gear and back to neutral fired right up
 

merc150

Petty Officer 2nd Class
Joined
Jun 17, 2013
Messages
110
your shift lever or shifter cable may need to be adjusted
 
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