2002 crownline 305 mercruiser

Jamz33

Petty Officer 2nd Class
Joined
Jun 14, 2018
Messages
119
Just installed this motor and noticed oil dripping from this hole when around 2000 rpm but wouldn’t when just idling. Is this a crank position sensor hole? If so the other motor didn’t have one.
 

Jamz33

Petty Officer 2nd Class
Joined
Jun 14, 2018
Messages
119
If so how do I plug it?
 

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Scott06

Admiral
Joined
Apr 20, 2014
Messages
7,484
Just installed this motor and noticed oil dripping from this hole when around 2000 rpm but wouldn’t when just idling. Is this a crank position sensor hole? If so the other motor didn’t have one.
My replacement long block came with the sensor but my engine being carbed does not use it. you may have to buy the sensor and install it to plug the hole
 
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