Twin Engine Nozzle Alignment.

[c4markee]

97 Challenger.
I am trying to realign the steering nozzles. The linkage finally came loose. I have them level to one another but it still pulls...
Any one have tips on how they have done this?

 

[Dr Honda]

If the boat is pulling one way or the other... it's generally that one pump is pushing harder than the other. That's why they give you 2 throttle levers. If it's pulling to the right... then give the starboard engine a little more power.

 

[c4markee]

Thanks Tony.
First I want to verify that the alignment of the nozzles is correct. Was wondering if there was some procedure that I was not 100% aware of to ensure they are not fighting each other.
One engines RPMs is slightly different than the other so i utilize both throttles well.

 

[Coastiejoe]

On my Searay I had a digital meter that would help me sync my engines. Is something like this available for the Seadoo boats? If so, would it be worth it?

 

[c4markee]

I am not sure I know what your talking about joe.
Let me ask this I guess.
If I took both jet pumps off what is the procedure to ensure the nozzle alignment?

 

[Dr Honda]

With jet boats... engine RPMs can been significantly different to achieve a straight drive, since pump pressure is what dictates the "Push". AND... since a small sir leak... pump clearance... or impeller health can effect the pressure... monitoring engine RPM to "Synch" the system, would be almost pointless. With a prop boat... it's not as big of a factor.

Oh... and not to mention... there are several of our Seadoo boat models with different pitch impellers. (left to right)

So... once again... you have 2 throttle levers. Adjust them so you drive straight.

 

[c4markee]

So there is no way to verify that my nozzles are at the correct angles to one another. I have set them back up assuming they need to be parallel.
I appreciate the information provided.

 

[ialonso]

if I recall correctly, manual says to adjust so they both point straight back. You have done that. If you are further asking, Is there a way to adjust them so boat will steer straight, I think the "No" stands. engine differences + no counter rotation, current + wind means it is likely to pull to one side over another most of the time. Correct course/ play with throttle, redistribute weight on boat all results in being closer to boat going straight without steering wheel input. I have digital tachs on my boat as I realized my old seadoo tachs were broke (one was anyway). I really like them, but they do NOT help to go straight. the engines do make a tell-tale sound when you get them running at the exact same RPM. the harmony can be heard clearly

 

[c4markee]

Thanks. I ended up using my level and a square to get them both angled strait again, they were off a few degrees still.
Works better now doesn't feel like it's fighting.
I get the throttle thing, just wanted to be sure that they were not supposed to be aneeded in.