Here I diagnose our beautiful, but very sleepy 2004 Sea Doo GTX 4-tec. Top speed before the work: 38 mph. Top speed after: 57 mph! I used a Solas impeller and wear ring
Nice video, thanks for your efforts. I do have a question. Did you happen to look at the maximum RPMs of your ski before and after the repair? I wonder if the problem effected the RPMs as well as speed?
Hello! Yes, I did look at RPMs. I’m not sure, but I think this engine is limited at 7500 RPM. Before the replace, I’d hit the gas and it would run up to 7500 very quickly, but the ski was very slow to accelerate. After the fix, I only hit 7500 when I’m cruising fast and pushing it up to 57 mph. Out of the hole, it doesn’t max RPM anymore.
Hello! I bought through Bay Area Powersports. They had the plastic ring, Solas impeller, and removal tool for a decent price as a kit. I don’t really support the whole stainless wear ring idea. If it’s stainless steel, then it’s no longer a wear ring. Goood luck!
I don’t have a manual, but I saw .025” somewhere. That’s like .6 mm. I had places where it rubbed and places where I could slip a .0300” feeler in. The performance improvement was excellent! Good luck!
I just did this replacement when my pump sucked up a metal object. Taking off pump and venturi together was fine once I found enough drive extensions to reach the nuts holding the pump to the hull, also use a deep well socket for the pump nuts it'll make your life much easier. Putting it back on I did the pump then the venturi and it all went together perfect. I took it out yesterday afternoon and noticed much better performance than before the pump sucking incident.
Do you know what the two screws holding the wear ring are for? I ordered a new ring and housing but the new ones didn't have holes. I skipped putting them in, but when I accelerate the ski revs up and then accelerates once I hit around 13 mph.
Hmmm that’s interesting. I’m not sure why it would be doing that. I don’t think the screws are necessary if the wear ring went in snugly. Did you replace the impeller at the same time? An out-of-tolerance clearance will certainly make acceleration poor.
GTX 4-TEC Models After wear ring installation, it is required to fit screws no. 36 to wear ring. Using their holes in jet pump housing as a drilling guide, drill 4.5 mm (11/64 in) diameter holes in wear ring. CAUTION: Drill carefully paying attention not to damage threads in jet pump housing. Drilling holes prior to screw installation will avoid wear ring deformation. Install screws and torque to 6 N•m (53 lbf•in)
