SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: bac Tahiti on December 16, 2015, 06:56:16 PM

Title: Berkeley pump 12JC
Post by: bac Tahiti on December 16, 2015, 06:56:16 PM: I have a 21' Tahiti Boss, 460 motor that is only turning 4200 rpm at 43 mph. Can someone tell me what the different model pumps mean and mine? Please!!!
Title: Re: Berkeley pump 12JC
Post by: mash on it on December 16, 2015, 07:37:18 PM: Sounds like you are a lil down on hp.

Typically, a (stock) 460 with an 'A' impeller should turn 45 to 4600 rpm

The speed is about right for 4200 rpm, in a big cruiser.

JC is a good pump, just not a split bowl.

Dan'l
Title: Re: Berkeley pump 12JC
Post by: bac Tahiti on December 17, 2015, 05:30:07 PM: Does that mean I have a split bowl, sorry not sure what youmean
Title: Re: Berkeley pump 12JC
Post by: mash on it on December 18, 2015, 08:52:45 AM: Quote from: bahner909 on December 17, 2015, 09:28:47 PM
JG is a split bowl

JA, JB, JE, JI, And a JR...All split bowls

JC and JF are one piece bowls.

Dan'l
Title: Re: Berkeley pump 12JC
Post by: roost on December 18, 2015, 12:49:47 PM: JE's aren't split bowl.
Title: Re: Berkeley pump 12JC
Post by: mash on it on December 18, 2015, 01:16:01 PM: Quote from: roost on December 18, 2015, 12:49:47 PM
JE's aren't split bowl.

Right from Berkeley's website

http://www.berkeleyjet.com/p-74178-new-replacement-12je-ss-jet-pump.aspx (http://www.berkeleyjet.com/p-74178-new-replacement-12je-ss-jet-pump.aspx)

.
Title: Re: Berkeley pump 12JC
Post by: roost on December 18, 2015, 02:02:12 PM: Don't know anyone that has a NEW JE, but in the past it was aluminum impeller and one piece bowl.