Trouble finding compatible impeller. 2001 GTI

[insulinman]

I've gone through the stickied impeller guide and saw that the 155.5mm ST-CD 10/16 is the preferred impeller. I ordered it from Solas (Amazon) seen here. I was having some work done to the ski since I just bought it and took the impeller to the guy who said the impeller didn't fit at all. I returned it and am now hoping to replace the impeller myself. The question is, there is so much conflicting information out there on which impeller to buy. SOLAS has a guide seen here that recommends the 155.5mm impeller mentioned earlier as well as a 140mm SF-CD-15/23 impeller. Should I get that one? With this damaged impeller I'm only going 40mph.

 

[Greg]

The SF 15/23 is good for the stock engine: Sea-Doo SOLAS 720 / 800 Impeller 15/23 SF-CD-15/23

Which ever you decide, we will beat Amazon's price at www.pwcmuscle.com ordering from there also helps support the forum just message us to price match!

 

[mikidymac]

Your ski in the picture uses the 155mm pump. The ST-CD 10/16 is what Solas calls for. I would pull the pump yourself as it is an easy job and the impeller sometimes comes with the tool.

 

[mikidymac]

The SF 15/23 is good for the stock engine: Sea-Doo SOLAS 720 / 800 Impeller 15/23 SF-CD-15/23

Which ever you decide, we will beat Amazon's price at www.pwcmuscle.com ordering from there also helps support the forum just message us to price match!

Are you sure on those numbers @hfgreg? The 2001-2005 GTi is the largest hull they ever put the 720 in and struggles as it is and is why the Solas spec's the low 10/16 prop. I am pretty sure when you go to the 15/23 it is going to be too tall.

And the SF is for the 140mm pump, his is the 155.

 

[insulinman]

Your ski in the picture uses the 155mm pump. The ST-CD 10/16 is what Solas calls for. I would pull the pump yourself as it is an easy job and the impeller sometimes comes with the tool.

Any reason why that guy could have said it wasn't compatible when I purchased it the first time? I bought this used and I'm pretty sure the engine was replaced. Could that have an effect?

 

[mikidymac]

No, that hull in your picture has the 155mm pump. Not sure why it wouldn't fit.

 

[Greg]

Are you sure on those numbers @hfgreg? The 2001-2005 GTi is the largest hull they ever put the 720 in and struggles as it is and is why the Solas spec's the low 10/16 prop. I am pretty sure when you go to the 15/23 it is going to be too tall.

And the SF is for the 140mm pump, his is the 155.

^ ahh, thats correct the 01 came in 140 and 155.5 I just had the wrong pump size for you. Solas Sea-Doo 720 / 800 Impellerr 10/16 ST-CD-10/16

 

[mikidymac]

The 01' GTI was a mess as far as badging goes and creates a lot of confusion as you could get the old hull design GTI 1997-2001 (720 w/ 140mm pump) and the new larger hull design GTI 2001-2005 ( 720 w/ 155mm pump) and they were both a 2001 GTI.

 

[insulinman]

The 01' GTI was a mess as far as badging goes and creates a lot of confusion as you could get the old hull design GTI 1997-2001 (720 w/ 140mm pump) and the new larger hull design GTI 2001-2005 ( 720 w/ 155mm pump) and they were both a 2001 GTI.

That explains a lot. It's been pretty confusing. I appreciate yours and @hfgreg's help!

 

[etemplet]

We recently bought a prop with the same problem. Ended up being the 155mm.

 

[mikidymac]

We recently bought a prop with the same problem. Ended up being the 155mm.

So are you saying the 155mm was the correct impeller or the wrong impeller?

 

[etemplet]

Impeller was too small. The pump was a 155mm.

 

[mikidymac]

Maybe you and Insulinman can swap, LOL.

 

[insulinman]

An update, I purchased the impeller that @hfgreg recommended and it is a perfect fit. However, I forgot to regrease the impeller/bearing so I'll have to take it back apart and do that. What else to I need to regrease/oil besides the cone?

 

[mikidymac]

A cone o-ring and oil, that's it.

 

[insulinman]

So should I put extra grease on the impeller or is it fine?

 

[mikidymac]

I would grease the impeller splines.