Inboard shafts

speakrdude

Well-Known Member
Feb 21, 2009
1,214
Northwest Arkansas
Boat Info
2002 Sea Ray 340 DA
Raymarine C80 Tri Data
Engines
twin 6.2 MX MPI
Since we're on the subject of Shaft packing and shafts etc, Is there supposed to be a groove on the shaft where it meets the packing or is that from wear? I have -0- experience with inboards so this a first for me. This boat (88 300, Weekender) The shafts are not connected to the engine and one engine is out so I can slide them in and out a bit to see it.
 
Sounds like scoring or as you say, wear. It's caused by overtightening packing nuts.
 

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