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07-23-2013, 09:58 AM #1New Member
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Repeat Mercury 150 XR6 Prop Shaft Seal Failure - Help?
2005 Merc 150 XR6... 7 years with no issues (yes, not used as much as I'd like!). Last year (2012) the inner prop shaft seal failed and ended up wedged in the outer seal. Caught it in time and I had the seals replaced at a dealer. First time in the water this year - a week at a fishing lodge in Canada - and when I pulled the boat out of the water I saw traces of oil on the skeg again. Ugh. Sure enough, pulled the prop, and the seal failure looks EXACTLY the same as last year (see pic). The inner seal failed again and wedged in the outer seal. Does anyone know what is causing this? I need to prevent this... last time I as lucky, this time I know there's damage (10 oz. of water in the case, bearings rumbling,...). Help!
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07-23-2013, 11:39 AM #2
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07-23-2013, 11:45 AM #3New Member
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Thanks for taking the time to reply. Do you think I should double-check that the lube isn't too full as well (after the new seal is put in)? I've read some things that suggest if the case is too full the pressure from heat build-up can push seals out... but you'd think it would only burp the seal, not cut it up and spit out chunks. I guess it's possible that the seal was damaged when installed? Makes me think about buying the tools to change the seals myself...
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07-23-2013, 11:59 AM #4
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07-23-2013, 12:02 PM #5New Member
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OK, gotcha, thanks. Really appreciate it. And since you're a supporting vendor, I'm off to visit your website too. Thanks again.