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Mercury Optimax 225 water pump

Old 09-13-2019, 04:19 PM
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Default Mercury Optimax 225 water pump

I have a Mercury Optimax DFI 225. I think the year is 2000. When I first start the motor cold, it takes about 10-15 seconds for the water to pump out. It then pumps very strong. Is it normal for this Optimax?
Thanks for any inputs.
Old 09-13-2019, 04:50 PM
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3 liter is a big motor, takes awhile to fill
Old 09-13-2019, 05:05 PM
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Normal. Have twins and does the same
Old 09-14-2019, 01:03 AM
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Thanks for your answers. I replaced the water pump kit last year, and I only used it 5 times. I go from 20-60 miles out to the ocean, so I'm just concerned of its behavior. But your answers give me more confidence, and I can focus more on fishing.
I have another question regarding to the gear oil. Today, I drained the old oil and put in new oil. It took about 1 quartz for the new oil to go out to the hole above. Is that correct?
Old 09-14-2019, 05:21 AM
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Originally Posted by stevechumo View Post
Thanks for your answers. I replaced the water pump kit last year, and I only used it 5 times. I go from 20-60 miles out to the ocean, so I'm just concerned of its behavior. But your answers give me more confidence, and I can focus more on fishing.
I have another question regarding to the gear oil. Today, I drained the old oil and put in new oil. It took about 1 quartz for the new oil to go out to the hole above. Is that correct?
yes sounds about right. Wait til it settles and go in again the next day and see if you can top her off. Always replace the seals around the two screws also. I like to check the oil after the first use when I change the oil to ensure level is good and no water.
Old 09-14-2019, 06:12 AM
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My 135 Opti was similar. Always praying that stream would start.
Old 09-14-2019, 02:57 PM
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Originally Posted by 03Scarab29 View Post


yes sounds about right. Wait til it settles and go in again the next day and see if you can top her off. Always replace the seals around the two screws also. I like to check the oil after the first use when I change the oil to ensure level is good and no water.
I replaced the washers and the screws, too. They're cheap on Amazon. I think they're worth the cheap investment.
Old 09-14-2019, 07:46 PM
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my 2015 Optimax 200 takes a while to show water from the tell tail also...and it still pisses for some time after I shut it down

Joe R
21 SeaCraft
Susie 2
Old 09-16-2019, 12:58 PM
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Originally Posted by magua View Post
My 135 Opti was similar. Always praying that stream would start.
Lol. That's funny, but it's true to me.

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