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Hammer3909

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Berkeley pump...
« on: January 22, 2016, 11:13:58 PM »
 Another question gentlemen? The model # of my pump is "12JC-A, do you suppose the 'A' indicates the cut on the impeller?  Thx, Rick
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GT Jets

  • Karma: +192/-0
Re: Berkeley pump...
« Reply #1 on: January 22, 2016, 11:23:24 PM »
Quote from: Hammer3909 on January 22, 2016, 11:13:58 PM
Another question gentlemen? The model # of my pump is "12JC-A, do you suppose the 'A' indicates the cut on the impeller?  Thx, Rick

Yes, when it was built. Things have a way of magically changing over the years.

GT

Sent from my SCH-I545 using SoCal Jet Boats mobile app

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  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

Hammer3909

  • Karma: +0/-0
Re: Berkeley pump...
« Reply #2 on: January 22, 2016, 11:44:20 PM »
Quote from: GT Jets on January 22, 2016, 11:23:24 PM
Yes, when it was built. Things have a way of magically changing over the years.

GT

Sent from my SCH-I545 using SoCal Jet Boats mobile app
Thx, GT for the reply. I'm not after more speed, only use the boat for skiing and tubing. Would an 'A' cut be sufficient? (Btw, powered by a 455 Olds)   Rick
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GT Jets

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Re: Berkeley pump...
« Reply #3 on: January 23, 2016, 12:00:30 AM »
Quote from: Hammer3909 on January 22, 2016, 11:44:20 PM
Thx, GT for the reply. I'm not after more speed, only use the boat for skiing and tubing. Would an 'A' cut be sufficient? (Btw, powered by a 455 Olds)   Rick

IMHO, the A impeller is the absolute best at all around modest horsepower applications. The secret is on the condition of the impeller, wear ring and installed clearances.

GT

Sent from my SCH-I545 using SoCal Jet Boats mobile app

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  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

Hammer3909

  • Karma: +0/-0
Re: Berkeley pump...
« Reply #4 on: January 23, 2016, 07:56:33 PM »
 Thx for the help GT, I am installing a new impeller and wear ring...
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GT Jets

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Re: Berkeley pump...
« Reply #5 on: January 23, 2016, 08:02:13 PM »
Quote from: Hammer3909 on January 23, 2016, 07:56:33 PM
Thx for the help GT, I am installing a new impeller and wear ring...

If your impeller is in good overall condition with minimal cavitation burn,  you could simply have it machined and purchase an undersized wear ring.

Obviously if the impeller has excessive pitting it would be time to replace it.

GT
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  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

Hammer3909

  • Karma: +0/-0
Re: Berkeley pump...
« Reply #6 on: June 04, 2016, 02:53:12 AM »
 Thx for all the help in the past, GT. I installed an 'A' impeller and std wear ring. First time out last wknd, she performs like a new boat!! ;D Another question, can I replace the packing glands with the pump fully installed in the hull?   Rick
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jquizy

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Re: Berkeley pump...
« Reply #7 on: June 04, 2016, 02:56:48 PM »
Yes you can it's a little tricky but with the right tools you can replace them.  Hopefully they aren't rocked too bad in there.


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Hammer3909

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Re: Berkeley pump...
« Reply #8 on: June 05, 2016, 10:52:08 PM »
 Thx for the info, jquizy.......Rick
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