I rode my 2003 GTX supercharged for the first time this year after winter storage. While jumping 2-3ft waves, I noticed a squealing noise while the pump was out of the water. It went away as long as the pump was in the water. I don't ride this one very much. We have others. I've not noticed the noise before but I also don't jump waves of this size very often with this boat. My wife mostly drives it. The boat has 46hrs on it.
The noise is not present when the boat is run at idle or at elevated rpm out of the water, nor does anything sound any different when the pump is running at any rpm in the water with a load on it. The boat performs as it always has.
I'm not sure if the noise is coming from the pump or the supercharger. I originally thought it was coming from the pump as a squealing bearing but the more I thought about it, it may be coming from the sc clutch washers slipping. Hard to tell when you're jumping waves. It sounds as if the washers have no lubricant in them. I don't know which it is.
The sc has not been rebuilt and it cannot be turned by hand with the hose off. Oil was changed last fall with Sea-doo 4tec summer blend.
I have a few questions for anyone:
The 2003 washers are steel. Does anyone have an idea for what reason they were changed to the ceramics by BRP in 2004? Was there something undesirable with the original steel washers?
Does the sc clutch come into play (slip) when the pump unloads coming out of the water or when the pump loads up going back into the water? Or, does the sc clutch slip at both times and in both directions?
Is there any way the carbon ring could possibly cause a squeal like that but not when run at idle out of the water?
I will be running this boat more to make sure the lubricant is worked into the sc well enough after the long winter storage and I suppose I'll pull the pump to look at it. For now I'm just here searching for ideas and discussion to determine which way to go. Not a big priority right now. I'm open to any ideas.
The noise is not present when the boat is run at idle or at elevated rpm out of the water, nor does anything sound any different when the pump is running at any rpm in the water with a load on it. The boat performs as it always has.
I'm not sure if the noise is coming from the pump or the supercharger. I originally thought it was coming from the pump as a squealing bearing but the more I thought about it, it may be coming from the sc clutch washers slipping. Hard to tell when you're jumping waves. It sounds as if the washers have no lubricant in them. I don't know which it is.
The sc has not been rebuilt and it cannot be turned by hand with the hose off. Oil was changed last fall with Sea-doo 4tec summer blend.
I have a few questions for anyone:
The 2003 washers are steel. Does anyone have an idea for what reason they were changed to the ceramics by BRP in 2004? Was there something undesirable with the original steel washers?
Does the sc clutch come into play (slip) when the pump unloads coming out of the water or when the pump loads up going back into the water? Or, does the sc clutch slip at both times and in both directions?
Is there any way the carbon ring could possibly cause a squeal like that but not when run at idle out of the water?
I will be running this boat more to make sure the lubricant is worked into the sc well enough after the long winter storage and I suppose I'll pull the pump to look at it. For now I'm just here searching for ideas and discussion to determine which way to go. Not a big priority right now. I'm open to any ideas.
