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Old 03-27-2012, 04:50 PM
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Default Honda 50 Corrosion Disaster

I own a 2001 Honda 50hp Outboard that has 531 hrs and has been flushed every time it was used mainly in saltwater. I saw water dripping out of the right side of the engine near the carburetors and took it to the dealer for diagnostics. The verdict....I have a corroded block and the oil looks like a vanilla milkshake. Told me that my motor is history and only thing I can do is sell it for parts and buy a new $6300 motor. I have been around outboards for 40 years and never have seen or heard of a motor corroding from the inside out. No way should a 11 year well maintained engine fail from corrosion inside the block. This engine except for minor wear and tear looks as good as the day i purchased it. I called Honda and they told me to pack sand. It was a old motor and we are giving you no help. What a way to back your products. I am posting this so you will never buy another Honda engine unless 11 years of service is all you desire. I have never been so disappointed in an engine. Beware to all....Honda outboards have major major corrosion issues.
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Old 03-27-2012, 05:07 PM
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My Honda 1994 55hp has 4600+hrs, has never been used in anything other than saltwater, and other than some corrosion on the bracket and a few t-stats has been pretty much trouble free.

Do you expect an 11y.o. truck to not have corrosion (rust) in the fender wells after using it for 11 winters in the snow belt? Would you expect the MFG to replace/repair the truck?

Now take a deep breath, break out your CC, and go buy a new motor.

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Old 03-27-2012, 05:12 PM
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Oh boy...
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Old 03-27-2012, 05:18 PM
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Originally Posted by tango2echo View Post

Do you expect an 11y.o. truck to not have corrosion (rust) in the fender wells after using it for 11 winters in the snow belt? Would you expect the MFG to replace/repair the truck?


T2E
Toyota, just saying.


But I think it might be from not flushing it out.
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Old 03-27-2012, 05:28 PM
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Does the 2001 have a powerhead anode? Ever change it? If you compare the maintenance shedule in early Honda owners manuals with later ones, you will see that they made no mention of inspecting internal powerhead anodes like they do in the later versions.
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Old 03-27-2012, 05:32 PM
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I feel you pain,I have a 90hp zuke in the same condition,mine only has 125 hours on it
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Old 03-27-2012, 09:52 PM
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What a way to back your products.

Good luck finding a manufacturer who will warranty corrosion, period, much less on an 11 year old engine ...
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Old 03-27-2012, 10:05 PM
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They are know as aspro's for a reason.
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Old 03-28-2012, 12:01 AM
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I have a 1992 Johnson 70hp. Pristine condition.
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Old 03-28-2012, 01:20 AM
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has never been used in anything other than saltwater

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Old 03-28-2012, 04:04 AM
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Quote:
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I own a 2001 Honda 50hp Outboard that has 531 hrs and has been flushed every time it was used mainly in saltwater.
nice first post.
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Old 03-28-2012, 05:00 AM
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Don't feel so bad, some of the Yamahas have corroded from the inside out in half that time.
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Old 03-28-2012, 05:13 AM
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The 50 does have zincs for the powerhead. Requires reomoving intake manifold/carbs to get at them. They're in the intake manifold. Not exactly user friendly and not in the maintenance schedule of the manual. .

The real corrosion problem on the 50, 45, 40, 35 HP series of engines was the lower unit. The beaaring carrrier nut on the lower unit was threaded directly into the lower unit housing. Corrosion would end up busting out the lower unit housing. Yep, mine did it and it was flushed every single use in saltwater. My neighbors did it also and I saw several others with the same busted lower unit. We both bought new lower units. I did not get any help from Honda although my dealer knocked a couple hundred off list.

I now have the Honda special tools to remove, clean and reinstall the bearing carrier nut. If Honda would have of inculded this in their yearly maintenance schedule it would probably have eliminated the problem. I am certain Honda made some big money selling LUs for these engines. A POS design.

Tango2echo, check that lower unit carefully and look for hariline cracks. Pull the prop and check the bearing carrier nut and threaded LU housing for corrosion. You're real lucky if yours is still intact.

Anyway no more Hondas for me due to the corrosion problem and Honda failing to inlcude the bearing carrier nut in their yearly maintenance.
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Old 03-28-2012, 07:00 AM
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I also have a friend with a 4 year old Etec 225H0 with the paint peeling off the sides of it. I wont get into the two injectors, EMM, Magnets falling off either. You provided lots of help...

Quote:
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I have a 1992 Johnson 70hp. Pristine condition.
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Old 03-28-2012, 07:17 AM
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I also have a friend with a 4 year old Etec 225H0 with the paint peeling off the sides of it. I wont get into the two injectors, EMM, Magnets falling off either. You provided lots of help...
Paint peeling off? wow.......
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Old 03-28-2012, 07:28 AM
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Yep...and corrosion...at least he has a sense of humor about it.

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Paint peeling off? wow.......
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Old 03-28-2012, 04:44 PM
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I rinsed and flushed after every trip. So when you fork out $6500 for a 50hp motor you only expect 11 years of use before it disintegrates. I just put $1500 into a new charging coil and trim motor.....now all for not...anyone need some parts for a 50 Honda I got em....all good except for the block.
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Old 03-28-2012, 09:12 PM
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I am not really convinced flushing does anything. That doesn't sound right but the guys I know who flush seem to have more corrosion problems than the ones who don't.
I always wrote it off to our nasty water here.
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Old 03-28-2012, 09:47 PM
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The most common mistake people make when they flush a motor is not running it long enough....Let it get up to temp so the tstat opens up and run salt away thru the motor on occasion.

Why dont u get a new block?
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Old 03-29-2012, 03:11 AM
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Just out of curiosity, you didn't look at your engine until it was a total loss? Sorry if I come off as an ass for this statement. I do feel bad for you. A few years back we spent a few thousand on an older engine that blew up on the first time we took her out that season. For better or for worse, since that experience, I've become paranoid about monitoring the conditions of my outboards. Never had a problem since, even on my '99 Honda 50. A little extra maintainence goes a long way. Personally, I'd spend the cash on a new outboard and write it off as a learning experience. Additionally, I wouldn't be so quick to badmouth an engine manufacturer. While people do have personal preferences, they all make great products and will last a long time with proper care. Search the boards and you'll find people with you name it: Honda, Merc, Yamaha, Suzuki, Evinrude, etc with over 1000 hrs well out of warranty that run fine. With that being said however, I am sure a lemon or two does slip by the production line. The vast majority however are built to last. Good luck with whatever you end up doing.
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