6 replies to this topic

[nec9716]

maybe this question will sound simple to a lot of people but this noise has me feeling a little nervous
yesterday a have run 3 hrs and everything was nice and fun

this morning i put the boat in the water start it and let it warm enough after i go on the lake with it
idle speed was ok but when i was trying to increase the speed no power and a funny noise so i have thinking " cavitation " so i came back and remove the boat from the water at my surprise no weed nothing under the boat

so i put the boat in the water again and i still have the same noise and i was not able to increase the speed

so once in the garage i inspect under the boat ( first time i go there ) and at my big surprise nothing was there i can see the turbine it shiny and clean

so do you think the next time i will put this boat in the water it will work properly?

sorry for all the mistake in english ( it's not my first laguage )
i hope that you will be able to understand me
thank to everyone to leave a comment
have a nice day

[stevenh]

maybe this question will sound simple to a lot of people but this noise has me feeling a little nervous
yesterday a have run 3 hrs and everything was nice and fun

this morning i put the boat in the water start it and let it warm enough after i go on the lake with it
idle speed was ok but when i was trying to increase the speed no power and a funny noise so i have thinking " cavitation " so i came back and remove the boat from the water at my surprise no weed nothing under the boat

so i put the boat in the water again and i still have the same noise and i was not able to increase the speed

so once in the garage i inspect under the boat ( first time i go there ) and at my big surprise nothing was there i can see the turbine it shiny and clean

so do you think the next time i will put this boat in the water it will work properly?

sorry for all the mistake in english ( it's not my first laguage )
i hope that you will be able to understand me
thank to everyone to leave a comment
have a nice day

Did you look at both the intake and outlet? Often times something will get stuck between the impeller and stators (near the outlet). This can cause loss of power just like something stuck in the inlet. It could also be that you're carbon bushing is wearing out and air is getting in around the impeller shaft. Or it could be that your pump seal has loosened up. Given that the boat worked the day before, I bet there is something in the pump somewhere. Good luck! Oh, also check the wear ring for any damage, it could be that something was sucked through and dinged up the ring. It does not take much to mess up the jet.

Steve

[nec9716]

i have look just the intake side
now that i have read you i wiil check the outlet side but for that i have to remove the nozzle ( directionnal nozzle ) ?

and to check the impeller the intake side can i remove the gard easely? i mean there no gasket or something i should know or aware of ?

thank again

[stevenh]

i have look just the intake side
now that i have read you i wiil check the outlet side but for that i have to remove the nozzle ( directionnal nozzle ) ?

and to check the impeller the intake side can i remove the gard easely? i mean there no gasket or something i should know or aware of ?

thank again

With the deflector up (forward gear) you should be able to see to the impeller from the rear of the boat with a flashlight without removing the steering nozzle. Just center the wheel and have a look with a flashlight. If there is somthing there, you might be able to get it out using something. I use on of those long wire pickup devices used to grab screws and stuff in a shop. It works great! If you have to remove the nozzle/staters you might want to pick up a shop manual (you probably want to get one anyway). You can probably find an "soft" copy on ebay for short money, that's how I got my 4-tec manual.

Steve

[nec9716]

yes like you said i have see those shop manual on cd on ebay but i really like more a book version like you are able to see exactly on place what you want

you have a cd copy ..... how do you found that?

[stevenh]

yes like you said i have see those shop manual on cd on ebay but i really like more a book version like you are able to see exactly on place what you want

you have a cd copy ..... how do you found that?

I found my CD copy (for my old Sportster 4-tec) on ebay with a search. It was a CD copy. I just printed out what I needed.

Steve

[nec9716]

thank for all your comment
this morning i have check under and by the nozzle and it was clean and no damage that i can see frome there
so i drop the boat in the water and ........ it goes well at full throttle oufffff
so thank again and have a nice day