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Troubleshooting root cause of oil leaking at shaft hub
#1
My boat is a Tiara 3500 with Crusader 7.4 engines and currently at a local marina for repair .  Port side has a vibration when taking it up to 3000 rpm to get on plane . Also spraying oil from the shaft hub where it bolts to the transmission.   Also spraying water from the dripless seal .   
    My concern is how can I be sure that the problem is properly identified ?   What step by step process should the yard follow , where do they start ?   Don’t want to get caught up in a repair by trial and error .
   Transmission shifts smoothly, no gear noise or overheating alarm .
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Troubleshooting root cause of oil leaking at shaft hub - by Toughship - 10-03-2021, 01:20 PM

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