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Optimax 225 broken shaft

Old 09-08-2019, 08:01 PM
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Default Optimax 225 broken shaft

I donít think the shaft is supposed to look like this. Iím taking to a mechanic tomorrow to survey the damage. Hopefully nothing in the motor is damaged. Hit something under the water going maybe 5 mph. Lower unit shaft going into the motor sheared off. I thought the prop shaft would have given first?
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Old 09-09-2019, 02:32 AM
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Getting the broken part out might be an issue unless it fell out already? Prop shaft may be bent and of course any prop damage. Engine powerhead damage is a bit of a lottery but in most cases I would expect to be OK.
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Old 09-09-2019, 04:26 AM
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Originally Posted by Aliboy View Post
Getting the broken part out might be an issue unless it fell out already? Prop shaft may be bent and of course any prop damage. Engine powerhead damage is a bit of a lottery but in most cases I would expect to be OK.
Thanks yeah the prop definitely has a wobble to it now and the piece is still in the motor. Tried to get it with a magnet but no luck.
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Old 09-09-2019, 05:40 AM
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You may be better off drilling and tapping the stub in the motor and using a slide hammer to get it out if it's stuck.
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Old 09-09-2019, 07:48 AM
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Originally Posted by muskamoot View Post
You may be better off drilling and tapping the stub in the motor and using a slide hammer to get it out if it's stuck.
I think the better route is going to be an insurance claim on this. I hate making claims but this will likely be well above my deductible. I talked to a local shop this morning and I'm going to have them look at it and go from there.
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Old 09-10-2019, 09:16 AM
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Definitely go insurance route, likely a costly repair, make sure they use genuine Mercury parts or gear case.
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Old 09-10-2019, 10:08 AM
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Originally Posted by leonreno View Post
Definitely go insurance route, likely a costly repair, make sure they use genuine Mercury parts or gear case.
Good point I'll make sure they do. Any idea how much a OEM lower unit would cost? Parts only ..... 3K maybe?
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Old 09-10-2019, 02:55 PM
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Depends on which one you have, up too 3k is possible. Some are around $1500 but some are around $3000. I would have mechanic check the drive shaft into the motor also. If your motor is still under warranty the you definitely want OEM parts to keep warranty intact.
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Old 09-10-2019, 03:21 PM
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Old south,if you need to replace the entire lower unit check out SEI,they are a solid bargain. That drive shaft can be had for about $200 on ebay you may not have any lower unit damage.Strange things happen.
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Old 09-10-2019, 03:56 PM
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I just blew my lower on a 250XS - price was $5600
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Old 09-11-2019, 05:03 AM
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Originally Posted by rdiesel01 View Post
I just blew my lower on a 250XS - price was $5600
The SEI for a 3 liter is $895...
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Old 09-11-2019, 05:42 AM
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Originally Posted by leonreno View Post
Depends on which one you have, up too 3k is possible. Some are around $1500 but some are around $3000. I would have mechanic check the drive shaft into the motor also. If your motor is still under warranty the you definitely want OEM parts to keep warranty intact.
Its a 2006 motor with 400 hrs so no warranty. The mechanic Iím going to is the main Mercury guy in our area so hopefully will use good parts.

Originally Posted by muskamoot View Post
Old south,if you need to replace the entire lower unit check out SEI,they are a solid bargain. That drive shaft can be had for about $200 on ebay you may not have any lower unit damage.Strange things happen.
Ok thx for the info. Pretty sure the prop shaft is bent also because the prop has a wobble to it.

Originally Posted by rdiesel01 View Post
I just blew my lower on a 250XS - price was $5600
Damn!! What happened and what all was damaged? Iím taking mine to the shop this morning
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Old 09-11-2019, 06:34 AM
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Originally Posted by OldSouth View Post


Its a 2006 motor with 400 hrs so no warranty. The mechanic I’m going to is the main Mercury guy in our area so hopefully will use good parts.



Ok thx for the info. Pretty sure the prop shaft is bent also because the prop has a wobble to it.



Damn!! What happened and what all was damaged? I’m taking mine to the shop this morning
If you buy a SEI lower unit for $895 you get all new drive shaft,prop shaft etc,it's a bolt on.Pay your mechanic to do the stub removal if you have to and for not much more than the $895 you are back on the water.You could also do the install yourself and be done for the $895.Same as dropping the lower to do a water pump.If you just take it to the mechanic and say fix it,you are probably looking at a $4000 plus bill. That's how this boating stuff works.
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Old 09-11-2019, 07:50 PM
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If it needs a new unit I would definitely go insurance route with a new one from Mercury over the SEI unit. Lots of reviews on the sei units have had bad results, but many also have good results. But being thatís what insurance is for, I would feel safer with an oem unit over sei. If I didnít have insurance coverage for it then I might gamble with the sei unit.
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Old 09-12-2019, 02:15 AM
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Originally Posted by leonreno View Post
If it needs a new unit I would definitely go insurance route with a new one from Mercury over the SEI unit. Lots of reviews on the sei units have had bad results, but many also have good results. But being thatís what insurance is for, I would feel safer with an oem unit over sei. If I didnít have insurance coverage for it then I might gamble with the sei unit.
After a few of you guys mentioned SEI, I went and took another look at mine before I brought it to the shop yesterday. It has an SEI tag right on top of the lower so it was probably changed at some point by a previous owner. The mechanic said heís going back with OEM stuff but did say heís had good luck with the SEI lowers in the past.
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Old 09-12-2019, 07:56 AM
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Originally Posted by OldSouth View Post


After a few of you guys mentioned SEI, I went and took another look at mine before I brought it to the shop yesterday. It has an SEI tag right on top of the lower so it was probably changed at some point by a previous owner. The mechanic said heís going back with OEM stuff but did say heís had good luck with the SEI lowers in the past.
I'd find out if insurance is paying the bill before I'd pick a $3000 lower over a $895 lower going on a 20 year old motor,but that's just me. SEI is a quality lower.
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Old 09-12-2019, 01:13 PM
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If there is external insurance for a damaged/destroyed $900 lower unit, why in the world would they replace it with a $3000 plus lower unit?
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Old 09-13-2019, 07:47 AM
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Originally Posted by alloyboy View Post
If there is external insurance for a damaged/destroyed $900 lower unit, why in the world would they replace it with a $3000 plus lower unit?
They won't,but you find that out after the mechanic has the pricey one installed and you have to eat the difference.
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Old 09-13-2019, 01:46 PM
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I put in an insurance claim for mine. Hit a submerged object which destroyed the internals. Just sent them photos and a estimate - because it was a counter unit and no remans available they hit with with "depreciation" if it was a regular rotation reman unit they would've paid in full. From my research on the Mercury Racing 250 XS's a sei unit would be toast in short order
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