SOMEONE HELP! 2002 seadoo gtx 4tec driveshaft!

[Paullywog]

Hello everyone, new to the forum so bare with me. I currently own 2002 sea doo gtx 4tec. I am currently experiencing some difficulties, the drive shaft and impeller were recently replaced. Ran fine for about a week then I noticed it loss in power almost like the shaft was slipping. Turns out this is exactly what it was doing. Brand new carbon seal brand new pto. Both still in good shape except the carbon seal has about a quarter inch of slack all the way around the shaft. I don’t know if this is normal anyways. Back to the shaft. It’s almost as if it is too short... I have read a similar thread and the gentleman had a photo of stock shaft and new shaft and there was a half inch difference in size... I’m really lost because this drive shaft is the only size they offer 23” 3/16 anyone know why the shaft is falling out of the impeller. Also when I removed the pump there was no impeller boot! I’m not sure if this would cause that but I’m sure it would cause some cavitation. Please if anyone can help I’ll post pictures of the parts and what ever else you need to square this away. I am getting beat up over this.

 

[mkov608]

Who replaced the drive shaft and impeller? Was it a shop? Warranty?

If memory serves, there will be some play between the shaft and the carbon seal (normal), the actual seal isn't between the carbon seal and the shaft. The seal is between the floating ring and the carbon seal. It's critical that you do not touch the contact surfaces of the floating ring & carbon seal. During operation a thin layer of water will cool and lubricate the carbon seal. That's why the manual says not to run the ski out of the water for more than 5 min. Go to seadoomanuals.net and download your shop manual. Look up the repair procedure in section 12-3.

From your description, it sounds like an installation step was missed.

 

[Paullywog]

 

[Paullywog]

I think the carbon ring is okay, I’m really having difficulty is understanding why my shaft is slipping out of the impeller like it Is too small... it’s a brand new shaft and new impeller. One week..

 

[mkov608]

Is it possible the wrong impeller was installed? You stated it worked well for 1 week ... how many hours of operation?

 

[Paullywog]

 

[Paullywog]

Possibly 8 maybe but the splines aligns lol but you may be onto something. I’m not sure of this impeller it looks like it sits good but it’s just shy of the prop almost like it needs to fall in another half inch to an inch.

 

[Paullywog]

Looks like the shaft is only seating a half inch on the splines as you can see by the rounds

 

[mkov608]

Oh yea! You can clearly see you have insufficient engagement. Who changed the impeller? Invoice? Part number used? What other parts were changed?

If you know you have the updated driveshaft and it's the correct part number, I'd pull the jet pump apart and remove that impeller to get the information (if any) on fitment. You said the drive shaft boot was missing, so whomever put it together didn't do a very good job.

 

[IDoSeaDoo]

The shaft should be 23 3/16. I just measured mine. The impeller should definitely have a boot around it. If the shaft didn't go into the splines of the impeller, you would not be able to tighten flush to the hull. I don't understand how you have spline marks on the part of teh impeller where the boot goes, but that impeller looks damaged now.

 

[Paullywog]

Me neither I dont understand how it could have come out that far! It is infact 23 3/16... I know the stock one is longer. Maybe it could be the impeller. I’m going to look into that now I’ll get some info and get back to you. Thanks for your help

 

[Digdog]

If that was the correct impeller then the engine moved forward on the mounts, the boot blew off probably because it could not seal on the shaft because it was too far back. Also for the the boot I found the factory boot the best as they don't leak and they are very tough, you need to use the thread sealant that is recommended by Seadoo on the boot. You need a good mechanic to look at your machine and fix it right using the correct parts.

 

[Paullywog]

I agree how would I go about shifting the engine back?

 

[Digdog]

You need an alignment tool and it measures the distance at the same time, the spec will be in a repair manual.

 

[4x4fun]

Also curious, was the C-clip (272-000-175) installed under the wear ring? If the person forgot that and the only part that was retaining the drive shaft was the impeller, maybe that was what was causing it to slide out and not have full purchase of the shaft?

 

[4x4fun]

Also, I just installed a new wear ring and it has the same gap. Had me concerned it was the wrong part, but I confirmed the part number. Thanks Mkov608 for the confirmation!

 

[Digdog]

Also curious, was the C-clip (272-000-175) installed under the wear ring? If the person forgot that and the only part that was retaining the drive shaft was the impeller, maybe that was what was causing it to slide out and not have full purchase of the shaft?

If that clip was missing then the shaft would go further into the impeller.

 

[4x4fun]

Also, I just installed a new wear ring and it has the same gap. Had me concerned it was the wrong part, but I confirmed the part number. Thanks Mkov608 for the confirmation!

Carbon ring, not wear ring. Sorry.