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TOPIC: Need help identifing a part. Pics inside!

Need help identifing a part. Pics inside! 10 Jun 2009 20:42 #1

  • Dyno58
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There is a screw type thing on the side of my outdrive. I opened the screw and a little bit of water came out. Now I can't get it to tighten up, please help.

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Need help identifing a part. Pics inside! 10 Jun 2009 20:44 #2

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Need help identifing a part. Pics inside! 10 Jun 2009 20:45 #3

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Need help identifing a part. Pics inside! 10 Jun 2009 21:09 #4

  • Rocky_Road
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What that is...is a type of bilge plug. There is a nut on the end of the shaft, and when you turn the T handle clockwise, the nut tightens and expands the rubber stopper:

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In your case, the nut is spinning...and ceases to expand the rubber portion.

I am pretty sure that this was NOT part of the original setup...but used, perhaps, to correct some stripped threads.

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Need help identifing a part. Pics inside! 10 Jun 2009 21:50 #5

  • Dyno58
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How do I retighten that plug?

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Need help identifing a part. Pics inside! 10 Jun 2009 22:03 #6

  • Rocky_Road
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You don't.

Once the nut starts spinning, it won't ever get any tighter. It needs to be pulled out, and replaced with either the correct plug or a new one like you have.

There's the rub...since the nut is spinning, you might not be able to loosen it any further. And if you try to pull it straight out, the rubber grips the hole and stops. The only sure way is to cut the handle off, and push the shaft into the drive. Then you will have easy access to the rubber part....

Keep 'bumping' this question up...maybe someone has a trick to getting this to release...without ending up with it inside your outdrive!

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Need help identifing a part. Pics inside! 10 Jun 2009 22:18 #7

  • Glenn Dombroski
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Is the nut spinning or the whole plug when you try to tighten. If the latter try holding the washer with pliers and turn the handle.

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1989 Bayliner 2955 Avanti with Twin 5.8L

Need help identifing a part. Pics inside! 11 Jun 2009 02:51 #8

  • Dyno58
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Thanks for all the help. I pulled and pryed until it came out. As soon as it did I realized exactly what it was. Went to the local hardware store and put in a new one. Does anyone know exactly what that is for? Why is it there?

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Need help identifing a part. Pics inside! 11 Jun 2009 03:04 #9

  • Mocoondo
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That seems like an inappropriate place for water to be coming from.

I'm not too familiar with OMC outdrives, but on Mercruisers, that would be a vent screw used to purge air from the drive while installing gear lube.

Also, as another person suggested, there should be a flat headed screw there instead of that bilge plug.

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Mocoondo
2002 Bayliner 195 Capri "Sport"
Mercruiser 5.0L V8 / Alpha I Gen II
MMSI: 338091755

Need help identifing a part. Pics inside! 11 Jun 2009 14:15 #10

  • mainecoast
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That plug is there because someone removed the cobra sticker and the screw underneath it to reveal the hole that does.....absolutely nothing! It is there as part of the manufacturing process, but you have to keep it plugged up for cooling and exhaust purposes.

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[SIGPIC] [/SIGPIC]
1989 2650...an ongoing restoration...but I'm totally clueless...It just happened to be running the day this photo was taken.
Isn't owning a boat always an ongoing restoration?

Need help identifing a part. Pics inside! 18 Jun 2009 02:39 #11

  • rrouse4761
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i had the exact same thing happen to me tonight. While running the motor, i noticed water leaking past the flatheaded screw that was in my outdrive. I removed the screw and the nut fell inside the unit but i was able to get it back out. So this hole is just a extra hole? I was wondering if it held some kind of gear oil up there or if it was for the water pump. Should i remove the top flathead screw on the outdrive and purge air from the pump or anyting? Also, i hadn't thought of using a plug like that, but i guess it will work fine huh? Thanks guys.

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Need help identifing a part. Pics inside! 18 Jun 2009 02:48 #12

  • JTCNB
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I had used a similar expending plug as in the pictures previously.

However on one cruise, it had fallen out without my noticing and it caused my engine to overheat greatly before I noticed the gauge and smell and shut her down.

I have since purchased the proper replacement and used locktite when I reinstalled.

See my initial thread at http://baylinerownersclub.org/forum/showthread.php?t=22510

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Terry
1989 2455 Cierra 5.8l
Garmin 176C
2003 F-150 SuperCrew 5.4l
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