Helena Frye
Berkeley jet boats are known for their instantaneous throttle response, which can be startling to new users. The boats are designed to provide ample thrust at idle, allowing for minor course corrections with gentle turns of the wheel. However, some users have reported a growling sound at idle, which has been attributed to slop between the splined pump shaft and the yoke. This issue can be addressed by checking the h-bar u-joints and main bearing, as well as adjusting the gland to prevent air from being sucked back into the suction piece, which can cause poor acceleration and low-speed thrust.
| Characteristics | Values |
|---|---|
| Throttle response | Instantaneous |
| Throttle setting | A little above idle |
| Jet stream | Provides ample thrust |
| Course corrections | Minor |
| Wheel turning | Gentle |
| Throttle nudging | Enhances the turn |
| Gland adjustment | Important to the operation of the jet drive |
| Gland leaking | 1 drop of water per minute at idle |
| Sound | Growling |
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What You'll Learn
Berkeley jet boats make a growling sound at idle
The Berkeley Jet Drive has an instantaneous throttle response, which can be startling for new users. When moving away from the ramp or pier, the throttle should be set just above idle so that the jet stream provides ample thrust. Minor course corrections can be made by gently turning the wheel and, if necessary, nudging the throttle to enhance the turn.
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The throttle response is instantaneous and startling
The throttle response of a Berkeley jet boat is instantaneous and startling. When you first handle a jet boat, you may find yourself doing so gingerly, as the throttle response is so unexpected. To get a sense of the timing with the Berkeley Jet Drive, set the throttle just above idle so the jet stream provides ample thrust. This will allow you to make minor course corrections by gently turning the wheel and, if necessary, nudging the throttle to enhance the turn.
The Berkeley jet boat's throttle response is so immediate due to the design of the jet drive. The jet drive is a marine propulsion system that uses a jet of water to propel the boat forward. This design allows for quick acceleration and precise manoeuvring.
It is important to note that the gland adjustment is critical to the operation of the jet drive. If the gland leaks too much at low speeds, the pump could suck air back into the suction piece, resulting in poor acceleration and low-speed thrust. Therefore, the correct adjustments should be about one drop of water per minute at idle leaking past the packing gland.
Additionally, some Berkeley jet boat owners have reported a growling sound at idle, which may be due to slop between the splined pump shaft and the yoke that goes over it or issues with the h-bar u-joints and main bearing. However, this sound is considered normal by some experienced boaters.
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Minor course corrections can be made by turning the wheel gently
If you are experiencing a growling sound at idle, this could be due to slop between the splined pump shaft and the yoke that goes over it. You should check your u-joints and your bearing (you will need to remove the driveline to do this) to make sure they are good. If everything else checks out, turn up the idle speed until the sound goes away. It could also be the main bearing going out.
If the gland is permitted to leak too much at low speeds, the pump could suck air back into the suction piece, causing poor acceleration and low-speed thrust. The correct adjustments should be about one drop of water per minute at idle leaking past the packing gland.
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The jet stream provides ample thrust
When you first handle a Berkeley jet boat, it is recommended that you set the throttle a little above idle so that the jet stream provides ample thrust. This is because the throttle response is instantaneous and can be unexpected and startling. The jet stream provides ample thrust to move the boat away from the ramp or pier.
The Berkeley jet boat is known for making a growling sound at idle, which is considered normal. However, if the boat is making this sound, it is recommended to check the h-bar u-joints and the main bearing as this could indicate an issue with the pump.
To ensure optimal performance of the jet drive, it is important to adjust the gland correctly. If the gland leaks too much at low speeds, the pump could suck air back into the suction piece, resulting in poor acceleration and low-speed thrust. The correct adjustment should be about one drop of water per minute at idle leaking past the packing gland.
By following these guidelines, you can ensure that the jet stream provides ample thrust at idle and that your Berkeley jet boat operates efficiently.
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The gland adjustment is important to the operation of the jet drive
Berkeley jet boats are known to make a growling sound at idle, which is usually due to slop between the splined pump shaft and the yoke that goes over it. This can be remedied by checking the h-bar u-joints and the main bearing, and if necessary, turning up the idle speed until the sound goes away.
When handling a Berkeley jet boat for the first time, it is important to set the throttle just above idle so that the jet stream provides ample thrust. Minor course corrections can be made by gently turning the wheel and, if needed, nudging the throttle to enhance the turn. With a few manoeuvres, you will get a sense of the timing with the Berkeley Jet Drive and can accurately judge the boat's reaction to your movements.
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Frequently asked questions
The correct gland adjustment should be about one drop of water per minute at idle leaking past the packing gland.
This is likely to be slop between the splined pump shaft and the yoke that goes over it. Check your h-bar u-joints and main bearing to make sure they're good.
Turn the wheel gently and, if necessary, nudge the throttle to enhance the turn.
Set the throttle at a little above idle so the jet stream provides ample thrust.
