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Driveshaft beating/seal assembly on Merc 50
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<blockquote data-quote="PSG-1" data-source="post: 238806" data-attributes="member: 6937"><p>I had the year model wrong. It's a 2005 engine, the boat is a 2007.</p><p></p><p></p><p></p><p>Anyhow, it looks like parts #22 and part #23 in this diagram:</p><p></p><p>https://www.boats.net/parts/search/Merc/Mercury/2005/1050412DN/GEAR%20HOUSING%28DRIVESHAFT%29%281.83%3A1%20GEAR%20RATIO%29/parts.html</p><p></p><p>Part #23 is the critical component, as it is a seal. However, it is held in place by part #22, which appears to be a machined aluminum cone with a countersunk surface to hold the seal in place.</p><p></p><p>The bearing, or part #27, is not compromised at this point, and does not need to be replaced, as long as I replace the seal and the cone that holds it in place before they finally go bad. I'm sure to replace the bearing, disassembly of the housing would be necessary.</p><p></p><p>But it looks like part #22 can be pulled by using a set of vise grips and doing a little twisting and pulling, as it is only press fitted into place. Or it may be threaded, it's hard to tell by the diagram. But in either case, I would think it could be removed while leaving the driveshaft in place.</p></blockquote><p></p>
[QUOTE="PSG-1, post: 238806, member: 6937"] I had the year model wrong. It's a 2005 engine, the boat is a 2007. Anyhow, it looks like parts #22 and part #23 in this diagram: https://www.boats.net/parts/search/Merc/Mercury/2005/1050412DN/GEAR%20HOUSING%28DRIVESHAFT%29%281.83%3A1%20GEAR%20RATIO%29/parts.html Part #23 is the critical component, as it is a seal. However, it is held in place by part #22, which appears to be a machined aluminum cone with a countersunk surface to hold the seal in place. The bearing, or part #27, is not compromised at this point, and does not need to be replaced, as long as I replace the seal and the cone that holds it in place before they finally go bad. I'm sure to replace the bearing, disassembly of the housing would be necessary. But it looks like part #22 can be pulled by using a set of vise grips and doing a little twisting and pulling, as it is only press fitted into place. Or it may be threaded, it's hard to tell by the diagram. But in either case, I would think it could be removed while leaving the driveshaft in place. [/QUOTE]
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Driveshaft beating/seal assembly on Merc 50
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