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honda 225 failed bushing in lower unit.

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honda 225 failed bushing in lower unit.

Old 05-19-2019, 09:35 AM
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Default honda 225 failed bushing in lower unit.

i have twin 225s. failed bushing on port motor--metal is either corroded or it burst..cant tell which..was out in the gulf yesterday didnt notice anything unusual in terms of operation of motors--was wondering can i use both motors to get to dock and trailer out for service or should i just use the one,,,
I would post pictures of damage but it says i need 10 posts for that? Thanks for any help..
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Old 05-19-2019, 12:56 PM
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if you mean like this, you can run it - won't make anything worse

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Old 05-19-2019, 01:31 PM
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A known issue on the early 225 models. I have mine checked every time the lower unit is dropped.
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Old 05-19-2019, 01:46 PM
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I lost both of my honda 225s to that problem. Tried to fix the first one but when they took it apart they found so much corrosion they said it wasn't worth fixing. They were always maintained by a non honda mechanic. He did not know about that bushing - they left it out of the manual and only told the honda certified mechanics so that they have a monopoly and we learn to use only honda certified mechanics.
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Old 05-19-2019, 01:48 PM
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These are the most ill-conceived ideas I've ever seen on an outboard motor. On early models, engineers (?) thought it would be a good idea to use water from the vertical supply tube to spray on the bushing (bearing) to lubricate it. If you operated in sandy or silty water, the same sand and silt would be sprayed on the bushing. Not really the best lubricant. They apparently modified the design ol later engines. Not sure how successful the new design is. One reason I sold my Honda !
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Old 05-19-2019, 01:49 PM
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You can run it as it is.
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Old 05-19-2019, 02:12 PM
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They also probably used engineers who graduated last in thier class when they designed th o2 sensor system. I go through 1 or 2 every year on each engine. About $195 each.
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Old 05-19-2019, 02:40 PM
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Knock on wood, Iíve never had an 02 sensor fail (to my knowledge...what are the symptoms?). I have a 2003 Honda 225 and had the midshaft bushing corrode the midsection...which required replacing the midshaft casting. I replace the bushing every other year now.

Otherwise itís been a reliable motor.
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Old 05-20-2019, 09:26 PM
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What year did they stop that design?
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Old 05-20-2019, 09:27 PM
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what year are motors and how many hours?
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Old 05-22-2019, 07:07 AM
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They are year 2006 and i have about 350 and 360 hours on them...the port side it the broken one..i havent checked the starboard side yet, but will once i get boat in driveway.. prob over the holiday weekend..
I think i read they changed the design around 2010? not sure.. i def. read the replacement cases have a drain hole.. ill look friday after the parts arrive.. sadly i need the case and the shaft.. the bushing took a nice chunk off the shaft..

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Old 05-22-2019, 07:12 AM
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Mine are are 2007ís with about same hours. What did the new casing cost?
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Old 05-22-2019, 07:22 AM
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Originally Posted by bigfoot2 View Post
They also probably used engineers who graduated last in thier class when they designed th o2 sensor system. I go through 1 or 2 every year on each engine. About $195 each.
And will continue to go bad as there is another issue going on with your motors and its not the Honda engineer who graduated last in his class to design the 02
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Old 05-22-2019, 07:23 AM
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The o2 sensor issue, is because the exhaust manifold allows water to splash up onto the sensor.
There is a new design exhaust manifold and o2 sensor that you can install that should stop that from happening.
Taking off the exhaust manifold is a pain, but the only way to change the internal anodes also....
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Old 05-22-2019, 01:00 PM
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Originally Posted by mbbford View Post
The o2 sensor issue, is because the exhaust manifold allows water to splash up onto the sensor.
There is a new design exhaust manifold and o2 sensor that you can install that should stop that from happening.
Taking off the exhaust manifold is a pain, but the only way to change the internal anodes also....
Yep...this is the fix.
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Old 05-22-2019, 02:33 PM
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Had Hondas on last boat, ran great for the most part, but seemed to have some problems (ie. o2 sensors, several of them). Little things that I did't expect with the company's reputation.
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Old 05-22-2019, 02:41 PM
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Seems the bushing and midsection issue is almost unavoidable on the earlier 200-225's, surprised it doesn't come up more often in the Honda is the most reliable threads... It's pretty costly to address.
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Old 05-22-2019, 04:40 PM
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Change it every time you change the water pump.
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Old 05-22-2019, 07:58 PM
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Originally Posted by good stuff View Post
Change it every time you change the water pump.
This. There are owners who never address the midsection cracking and the bushing coming apart. In most applications, I donít think that bushing is even necessary...the 20Ē version doesnít have the bushing (and therefore no problems). I replaced mine and do so when the water pump is replaced every other year...but running it as shown probably doesnít hurt anything. And many owners have this issue without knowing it as the corroded part is covered by a lower cowling.

stupid design and not in the owners manual which is ridiculous, but this problem wonít leave you stranded and is a fairly easy maintenance item once you know about it.
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Old 05-23-2019, 06:55 AM
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Originally Posted by bigfoot2 View Post
They also probably used engineers who graduated last in thier class when they designed th o2 sensor system. I go through 1 or 2 every year on each engine. About $195 each.
That issue you are having points to an installation issue, a common problem is the height of the exhaust ports above the water line on your boat. Ask your Honda dealer to measure, this shouldn't be happening.
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