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Post by Simple Man on Apr 26, 2016 3:36:47 GMT -6
This is a reminder for everyone to change out your water pump every three years or so. At least drop your lower unit and grease everything up. I changed mine out for the first time the other day and almost wore out a rubber mallet beating on the lower unit to get it off. It was a chore. On a side note, the eight year old impeller and housing looked brand new and was as soft and flexible as the new one I put in. I saw no change in water pressure either. Amazing how they hold up if you run your boat regular and keep it out of the sand.
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985crabs
Captain
2000 V1900 Bay Series, Yamaha 150 Carb. 2
Posts: 1,309
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Post by 985crabs on Apr 26, 2016 7:08:22 GMT -6
8 years?! Wow, you would have thought that impeller would look and feel like a petrified sponge.
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Post by gnrphil on Apr 26, 2016 9:01:59 GMT -6
It's a very good idea to at least drop the lower unit and grease the shaft splines once a year, I've read too many horror stories of stuck lowers. emthup
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Post by Simple Man on Apr 26, 2016 15:14:34 GMT -6
It's a very good idea to at least drop the lower unit and grease the shaft splines once a year, I've read too many horror stories of stuck lowers. emthup I don't know if I will do it every year but I won't wait 8 again. I was getting worried there for a bit. PB Blaster is some good stuff. |
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Post by gnrphil on Apr 26, 2016 15:18:38 GMT -6
Well maybe once a year is a bit ott, but for me and the time it takes I'll do it.
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Post by Juan on Apr 26, 2016 19:43:01 GMT -6
I think it was 9 years before I changed the water pump on the Sea Pro and like you, the impeller looked as good as the new one. I only changed it because it had been in there for so long. Luckily, I didn't have a problem dropping and reinstalling the lower unit on the Yamaha.
I've always made it a policy to install a new water pump when I buy a boat, that way I know when it was installed but I'm not doing it on the Optimax on the bass boat.. It's "supposed" to have less than 100 hours on it (haven't had it checked) and it pees like a new born baby so I think I'll wait a few years and keep an eye on the pee stream. The impellers these days are built of better materials and last a lot longer than they did 15 - 20 years ago and as you said, if you don't run in sand, they'll last years without issue but I know people who change em every year. Over kill IMO.
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fraydknot
Master Chief
Life is a collection of Memories.
Posts: 384
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Post by fraydknot on Apr 27, 2016 11:08:01 GMT -6
I change mine every other year. So far so good. But I do change the lower unit lube every 50 hrs. To me its cheap insurance on whats going on with the lower unit should something show up like water leak etc...
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Post by brian125 on Jul 28, 2018 11:48:42 GMT -6
Hi I just purchased a mercury 125 hp engine year is 2000 and has not been run for 5-6 years. I got it started but want to change the water pump impeller. I took the five nuts off the lower half of the engine but cant get lower unit off. I have been hammering it with block of wood but am afraid it will break something or have missed something. Any help would be appreciated
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Post by Juan on Jul 28, 2018 12:27:05 GMT -6
Hi I just purchased a mercury 125 hp engine year is 2000 and has not been run for 5-6 years. I got it started but want to change the water pump impeller. I took the five nuts off the lower half of the engine but cant get lower unit off. I have been hammering it with block of wood but am afraid it will break something or have missed something. Any help would be appreciated You did the the bolt at/under the anode right? |
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