SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: shadow3621 on April 22, 2016, 03:32:25 PM

Title: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 03:32:25 PM

I finally get my engine tuned up only to find out there is a bunch of gravel hidden in my impeller. Now, not only have I had to fish out rocks and pebbles out of my diverter, but I also found pieces of impeller. Can it be repaired, or does anyone have an aluminium impeller they are willing to part with cheap and send to canada?

It is a 12JE Berkeley with an A impeller.


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Title: Re: Gravel in my bowl
Post by: mash on it on April 22, 2016, 03:44:18 PM

Being an E pump, super easy to pull the bowl to see how bad it is. It could be pieces of the bowl, too.
Pea sized gravel will usually pass thru. Do you have a rock grate or a loader?

Dan'l

Title: Re: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 03:50:14 PM

Quote from: mash on it on April 22, 2016, 03:44:18 PM

Being an E pump, super easy to pull the bowl to see how bad it is. It could be pieces of the bowl, too.
Pea sized gravel will usually pass thru. Do you have a rock grate or a loader?

Dan'l

I have a rock grate, and when I say gravel, I mean big rocks. Here is a pic to show you what I pulled out, so far.


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Title: Re: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 04:15:34 PM

Looking for an A, A2, or A3 impeller now tho. I guess now would be a good time to upgrade to a better impeller if I can find one. I haven't had the boat in the water yet, lol.


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Title: Re: Gravel in my bowl
Post by: mash on it on April 22, 2016, 04:18:07 PM

What motor/hp? this will help in impeller selection.

Dan'l

pump rocks- I've had a few

Title: Re: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 04:38:34 PM

It  is a 460 Ford, supposedly has between 395 and 425 hp.


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Title: Re: Gravel in my bowl
Post by: bronco1 on April 22, 2016, 06:12:26 PM

Depends on what your going to do with the boat

Title: Re: Gravel in my bowl
Post by: mash on it on April 22, 2016, 06:34:12 PM

Quote from: shadow3621 on April 22, 2016, 04:38:34 PM

It  is a 460 Ford, supposedly has between 395 and 425 hp.


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"A" Impeller specs:
RPM.....HP...........TQ...
4800   395.68   432.77
4900   420.92   450.99

"AA" Impeller specs:
RPM.....HP...........TQ...
4600   393.90   449.56
4700   420.15   469.32

From JBP: http://www.jetboatperformance.biz/pages/calculator.html (http://www.jetboatperformance.biz/pages/calculator.html)
These are the requirements at the pump.
An "A" looks right for the application

Dan'l

Title: Re: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 07:05:58 PM

Awesome!!!! Thank you very much, now I need to find one to get me thru until I can get a new one.


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Title: Re: Gravel in my bowl
Post by: mash on it on April 22, 2016, 07:15:01 PM

Quote from: shadow3621 on April 22, 2016, 07:05:58 PM

Awesome!!!! Thank you very much, now I need to find one to get me thru until I can get a new one.


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Tom at JBP used to have some good take-outs for a reasonable price.

New ones:
http://www.jetboatperformance.biz/pages/impellers.html (http://www.jetboatperformance.biz/pages/impellers.html)

Dan'l

Title: Re: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 07:38:50 PM

Thank you very much! I really appreciate it.


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Title: Re: Gravel in my bowl
Post by: CommJet on April 22, 2016, 07:59:11 PM

I sucked up some rocks that size last season with a JE pump A impeller. Here's what I found when I replaced it.

Title: Re: Gravel in my bowl
Post by: shadow3621 on April 22, 2016, 08:48:29 PM

That is exactly what I think has happened to mine, but in my driveway. Lol.


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Title: Re: Gravel in my bowl
Post by: ron.h on April 23, 2016, 04:32:46 AM

If you're going to replace the impeller you will need to also replace the wiring unless you get lucky enough to find a used Impala that will fit your wearing you need to measure to find out

Title: Re: Gravel in my bowl
Post by: shadow3621 on April 23, 2016, 07:22:42 AM

I have actually found a used one that comes with a wear ring, and will still be talking to Tom at JPB this afternoon. I might also have a lead on a guy who might be able to repair it, as long as I find all of the pieces. I'll be tearing it down today...


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