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Dec 30th, 2023
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 Mercury XRi Lower Unit Leak
#12308856
06/24/17 12:06 AM
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Joined: Oct 2014
Posts: 2,073
Ricky Taylor
OP
Extreme Angler
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OP
Extreme Angler
Joined: Oct 2014
Posts: 2,073 |
1995 Mercury XRi 200HP. Just replaced the prop shaft seal after I noticed it was leaking from lots of braid behind the prop. Did that 2 weeks ago, refilled with fresh gear lube, been on the lake 2 full days and it ran great, went into gear fine. No issues there. Parked the boat for about 10 days and the lower unit started leaking out of a little hole (see pic, top right hole) I checked the fluid for water, it's not milky, or runny like it's got water in it. i have no clue what the holes for, or why it's leaking gear oil out of it. It's leaking about a 7 inch diameter circle of fluid. Is this over flow? [img] https://texasfishingforum.com/forums/pics/usergals/2017/06/full-93422-167019-img_1714.png[/  
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Re: Mercury XRi Lower Unit Leak
[Re: Ricky Taylor]
#12309466
06/24/17 02:03 PM
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Joined: Oct 2014
Posts: 2,073
Ricky Taylor
OP
Extreme Angler
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OP
Extreme Angler
Joined: Oct 2014
Posts: 2,073 |
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Re: Mercury XRi Lower Unit Leak
[Re: Ricky Taylor]
#12309503
06/24/17 02:26 PM
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Joined: Jan 2009
Posts: 1,649
spankyttx
Extreme Angler
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Extreme Angler
Joined: Jan 2009
Posts: 1,649 |
not familiar with the merc but if that's a weep hole from the top inside of the l/u, it could mean the shift shaft or drive shaft seal is leaking, it may need a pressure test, but just a guess
LI-SI-WI-NWI
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Re: Mercury XRi Lower Unit Leak
[Re: spankyttx]
#12310576
06/25/17 03:33 PM
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Joined: Nov 2002
Posts: 4,439
Gamblinman
TFF Team Angler
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TFF Team Angler
Joined: Nov 2002
Posts: 4,439 |
not familiar with the merc but if that's a weep hole from the top inside of the l/u, it could mean the shift shaft or drive shaft seal is leaking, it may need a pressure test, but just a guess Yep...need to have the LU pressure tested. cheap insurance. After changing LU fluid, I always take it for a short run to heat up the LU, stick it back on the trailer, and crack the top screw to release pressure and bleed any excess fluid off.
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Re: Mercury XRi Lower Unit Leak
[Re: Ricky Taylor]
#12310673
06/25/17 06:04 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Sounds like you might have overfilled the lower.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Mercury XRi Lower Unit Leak
[Re: Ricky Taylor]
#12311110
06/26/17 02:24 AM
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Joined: Oct 2014
Posts: 2,073
Ricky Taylor
OP
Extreme Angler
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OP
Extreme Angler
Joined: Oct 2014
Posts: 2,073 |
Okay, so...
Pulled the lower unit lastnight, replaced the shift shaft bushing, re-installed the LU, took to the lake to run it around and my boat is stuck in neutral. Won't go into gear.
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Re: Mercury XRi Lower Unit Leak
[Re: Ricky Taylor]
#12311189
06/26/17 03:08 AM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
You missed the shift shaft. Drop lower down just enough to get the top part of the shift shaft on to the top of the lowers shift shaft. Lower and control in neutral.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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