SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: 69kona on April 09, 2017, 03:09:50 PM

Title: AB Berkeley impeller cut measurements
Post by: 69kona on April 09, 2017, 03:09:50 PM

Got this Berkeley impeller ... How do I identify the cut of it ? Measures 8.750 on the big end ..
What u guys think ? Thanks


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Title: Re: AB Berkeley impeller cut measurements
Post by: 69kona on April 09, 2017, 03:19:50 PM

Machined angle looks to be 58*
The small diameter is 6.825


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Title: Re: AB Berkeley impeller cut measurements
Post by: 69kona on April 09, 2017, 06:27:13 PM

GT or Flusher any input


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Title: Re: AB Berkeley impeller cut measurements
Post by: Flusher on April 10, 2017, 11:42:51 PM

Looks like a "B" cut impeller, which would be an 8.750 large diameter with a 33.5-degree Machine Angle (relative to the shaft).  Your measurement looks right on.  The 56-1/2 degrees would be perpendicular to the shaft.

The detailing on the trailing edges looks as if it has changed the cut, so it won't act like a true B, it will RPM higher.