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-   -   Best option for Bravo One Sea Water pump ? (https://www.offshoreonly.com/forums/general-q/365025-best-option-bravo-one-sea-water-pump.html)

tbev 02-18-2020 02:06 AM

Best option for Bravo One Sea Water pump ?
 
What are the cool kids using for sea water pumps nowadays? I've been looking all over and I see tons of people having problems with what seems like every version of Hardin's pumps. I love the idea of stainless but am I better off just running the stock plastic pump and rebuilding it every season. I'll be in saltwater, probably never rev over 4500 rpm, 383 SB with heat exchangers. I ran across a post regarding crank mounted Johnson pumps, people seemed to like them but I haven't heard enough feedback to go that route. I had one on my old Wellcraft when I was a kid and it leaked like a *****.

Is there an option that has a plastic housing and two wear plates, I have seen one wear plate, seemed to me it should have on on each side....?

flashgordon 02-18-2020 06:32 AM


Originally Posted by tbev (Post 4725845)
What are the cool kids using for sea water pumps nowadays? I've been looking all over and I see tons of people having problems with what seems like every version of Hardin's pumps. I love the idea of stainless but am I better off just running the stock plastic pump and rebuilding it every season. I'll be in saltwater, probably never rev over 4500 rpm, 383 SB with heat exchangers. I ran across a post regarding crank mounted Johnson pumps, people seemed to like them but I haven't heard enough feedback to go that route. I had one on my old Wellcraft when I was a kid and it leaked like a *****.

Is there an option that has a plastic housing and two wear plates, I have seen one wear plate, seemed to me it should have on on each side....?


i had cam driven water pumps,,switched to normal cir pump, then added a johnson crank driven water pump. i have not had any issues, but only on second season.
the cam driven was nice, as you didnt need a sea pump, but i had replaced on pump and impeller in 4 seasons.
i also questioned the mounting on the johnson pump to lower pulley,,,so i had my machine recess a pocket in lower pulley for pump to give a very secure mounting set up.
https://cimg9.ibsrv.net/gimg/www.off...558d92335d.jpg
i also made bracket to hold pump.

AllDodge 02-18-2020 06:35 AM

With all pumps there are wear plates. If the pump is reused the wear plates will need to be replaced. If there is enough room to mount on crankshaft I would place there because its so easy to replace/repair. I have a Hardin pump and used it 2 seasons, but going back to plastic

BBYSTWY 02-18-2020 07:09 AM

What's everyone's issue with the stainless hardin's? I have one and it pumps water like a mofo! Are there hidden issues that I'm not seeing?

That being said...I love the hardin...fittings are stupid expensive to screw in but besides that I haven't seen any issues with it and it looks sweet lol

AllDodge 02-18-2020 07:25 AM


What's everyone's issue with the stainless hardin's?
For me there are 2 issues.

First, weight I have to hang upside down to install, and the thing is heavy in that position.

Second, there is a machined surface inside which was not done properly and causes added wear on impeller (factory defect). The impeller pumped fine for 2 seasons but the second season I was seeing pressures a bit lower. This will be the second season on the plastic housing and will compare

BBYSTWY 02-18-2020 07:33 AM

I gotcha...being a single engine in mine with room the weight thing I don't have to be concerned but def see what you're saying..they aren't light lol. I did notice some pretty sharp edges on the inside but pulled it apart after 8-10 hours run time and didn't see any wear on the rubber from it. I purchased mine fairly recently..I would say within the last year and a half or so...wonder if they fixed the design flaws?

Unlimited jd 02-18-2020 07:52 AM

Replace the impeller and plastic housing each season. It’s about $40 more than just a good impeller.

Crude Intentions 02-18-2020 08:26 AM

I run stock and just replace them when needed. Order the kit with housing. Don’t cheap out. But the good quicksilver stuff and you’ll have no problems.

boostbros 02-18-2020 09:53 AM

if you have the room crank driven pumps work awesome there are 2 different lengths the longer one pumps more water its also easy to change the impeller

tbev 02-18-2020 10:46 AM


Originally Posted by boostbros (Post 4725896)
if you have the room crank driven pumps work awesome there are 2 different lengths the longer one pumps more water its also easy to change the impeller

Are the ones your referring to both Johnson pumps? Can you recommend a place / part numbers? Thanks.



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