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Bulge on Lower Unit???

Old 05-07-2009, 05:00 PM
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Default Bulge on Lower Unit???

I just noticed a bulge or flaked piece on the RHS of my 1997 Evinrude 200 Ocean Pro. It is not just a fleck of paint coming off but feels like a big chunk. What are these covers? Can anyone make a guess?





Thanks
Old 05-07-2009, 05:12 PM
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That appears to be a sacrificial anode that was painted over, if so they are meant to take the corrosive action of the saltwater and save your lower unit's metal.
Old 05-07-2009, 05:14 PM
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Old 05-07-2009, 05:17 PM
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Under that plate is the lower engine mount. Pull the plate off and see if you have broken mount..
Old 05-07-2009, 05:17 PM
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No, it is not the anode, that is lower down. It is some sort of cover.
Old 05-07-2009, 05:19 PM
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it is just a cover, I believe they are alum.
Looks like it is just the paint coming off
Old 05-07-2009, 05:20 PM
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Lower engine mount, thanks Dunk. I will pull it off.

Is a broken engine mount expensive to repair?
Old 05-07-2009, 05:29 PM
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Originally Posted by scubadown View Post
Lower engine mount, thanks Dunk. I will pull it off.

Is a broken engine mount expensive to repair?
Yeah, becareful getting those bolts out on a 12 yr old engine. You might need heat or work them back and forth. PB Blaster once you get them out some might help. Then use Bomb Gasket Sealer when you put them back in. A can of the stuff is only 4-5 bucks. Use it on any bolt or screw you take out on any outboard. It will seal saltwater out of the threads..
Old 05-07-2009, 05:37 PM
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As you take it apart, you'll begin to see if you want to replace the mount yourself or have it down. Your biggest problem is going to be corrosion and the condition of the threads. In loking at the pictures, I can see the marks from a socket on the bolts, so they have to have been removed before. I've found that once you get the bolts broken loose, it is a good idea to give them another shot of lubricant before you unscrew them completely. There's nothing worse than a bolt that hangs up half way out. Be patient and be gentle. Don't hesitate to go both ways (in and out) with the bolts to get them to move freely before you try and remove them. A bolt that is hung up will bring the threads out with it. Once you get the covers off, you'll get a good look at the lower mount and how it is installed.
Old 05-07-2009, 05:45 PM
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Thanks guys. I can't tackle it this weekend but it is on the list for next weekend. Also, I have a great mechanic in Port Canaveral, so if it looks too bad, I will go see John.
Old 05-07-2009, 05:52 PM
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You're all on dope, that is a scent gland, how else do you think they find each other to reproduce.
Old 05-07-2009, 05:54 PM
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Originally Posted by scubadown View Post
Thanks guys. I can't tackle it this weekend but it is on the list for next weekend. Also, I have a great mechanic in Port Canaveral, so if it looks too bad, I will go see John.
Well, you really shouldn't run the engine if something is coming thru that plate. Idle speed up the maybe 1500-1800 probably won't hurt anything. Clean that paint chip off and take another picture.
Old 05-07-2009, 06:01 PM
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It isn't a paint chip but more like something from the inside has pushed through the cover. I ran it tonight, before I noticed it, and it ran fine. But it definitely will be attended to before the next offshore trip. Just glad it noticed it, while flushing the engine.
Old 01-05-2010, 02:20 PM
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I did not want to pull up an old thread but this exact situation has just occured on my 98 Johnson 225. Ran the boat yesterday for quick run, ran great, no issues. While flushing the motor I noticed the same sort of crack noted above. Curious to see if anyone out there has tried removing their lower cover mounts without applying a heat torch? I sincerely do not want to shear the bolts, just looking for any advice. I am guessing the lower engine mount underneath the cover may be corroded which caused expansion and subsequent cracking of the cover? This may be a job suited for the service center.
Old 01-05-2010, 02:28 PM
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Default My lower unit..

My lower unit always has a bulge
Old 01-05-2010, 03:10 PM
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TMI


Originally Posted by #1Stunna View Post
My lower unit always has a bulge
Old 01-05-2010, 04:44 PM
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Originally Posted by #1Stunna View Post
My lower unit always has a bulge
But is it as big as the one pictured above?
Old 01-05-2010, 04:49 PM
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thats a first for me to see on a cover
Old 01-05-2010, 04:50 PM
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Originally Posted by #1Stunna View Post
My lower unit always has a bulge
It might be a Hernia, better see your doctor!

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