Video Instructions

Since the Marine Jet Drive Manual published by Seloc is no longer in print, we have begun a series of instructions on "How To Rebuild Your Berkeley Jet Drive".  These articles will feature printable text instructions, still images and even web video of the major procedures being done.  Here is the beginning of this project, we will be adding more articles as time permits. 

To view the video your computer will need to have the Macromedia Flash/Shockwave viewer installed.

Model Identification
The most popular models are as follows:

You will find an identification tag attached to the pump next to the thrust bearing grease fitting.  This tag will be stamped with the pumps model number.  Use the tests below if the tag is missing or unreadable.

12JC – Hand hole is inside the boat transom and the pump bowl and nozzle housing are a one-piece unit.
12JG – Hand hole is inside the boat transom, but the pump bowl and nozzle housing are separate units.
12JE – Hand hole is outside the boat transom and the pump bowl and nozzle housing are a single unit.
12JF – Hand hole is outside the boat transom and the pump bowl and nozzle housing are a single unit, but a gimbal ring is used to rotate the nozzle.

Procedures
Because the four Berkeley models are so similar, only one set of procedures is presented in this manual. Where differences do occur, these differences are clearly indicated with a heading, and separate steps are listed.

Our project boat is equipped with a Berkeley 12JG pump, droop snoot and a manual Place Diverter trim/steering nozzle.

Pump Removal Sequence:

1. Removing the Nozzle (Place Diverter Nozzle Shown) - Watch the Video Approx Download Size 6.8 MB

2. Removing the Transom Assembly - Watch the Video Approx Download Size 11.3 MB

3. Removing the Suction Housing/Pump - Watch the Video Approx Download Size 2.1 MB

Re-Installing the Pump:

1. Installing the Suction Housing/Pump - Watch the Video Approx Download Size 5.1 MB

2. Installing the Hand-Hole Cover - Watch the Video Approx Download Size 1.7 MB

3. Installing the Transom Adapter Housing - Watch the Video Approx Download Size 7.6 MB

4. Installing the Forward/Reverse Cable Seal - Watch the Video Approx Download Size 1.7 MB

5. Installing the Steering Tube - Watch the Video Approx Download Size 3.2 MB

6. Installing the Steering/Trim Nozzle - Watch the Video Approx Download Size 2.5

7. Re-connecting the Control Cables (Forward/Reverse, Trim & Steering) - Watch the Video Approx Download Size 8.4 MB