This ski is on it's third engine which was professionally installed by a Sea Doo Dealer. I'm almost sure that they would have aligned the engine properly upon installation. Last summer, after a good year of running it after the engine replacement, the engine ran fine, but it ran in the water without getting any power to the jet. Took the drive shaft out and found the splines to be stripped on the shaft. Replaced it, and believed that the engine did not need to be realigned. It was the original shaft and I thought that it just wore out.
Saturday, on a jet ski camping trip, same thing! Engine running fine, but no power to the jet pump when I went over idle, like the shaft was just spinning in the PTO wheel. Also, there was about 4 inches of water in the hull. It made a sound that was similar to a whirr or a whining drone that it's never done before. Towed it back and pulled the drive shaft out last night. I found the rubber bumper on the front of the shaft to be broken in half and ground out. Also, the boot on the PTO has been torn up and partially melted into a powdery sludge. This could have been from using a zip tie instead of callilau(SP?) clamp????? Actually had a dealer in Texas tell me that it would be fine to use a zip tie for this. It ran for about 25 hours since I changed the shaft last time and used the zip tie. The shaft would slip when I turned it by hand. I cleaned off the rubber sludge from the shaft and the inside of the PTO and now it looks like it's gripping. The splines look pretty good on the shaft. Would this sludge, if it got into the spline area inside the PTO cause the shaft to slip? How could this front bumper be torn up so bad when the rear bumper was fine? Thanks!!
Saturday, on a jet ski camping trip, same thing! Engine running fine, but no power to the jet pump when I went over idle, like the shaft was just spinning in the PTO wheel. Also, there was about 4 inches of water in the hull. It made a sound that was similar to a whirr or a whining drone that it's never done before. Towed it back and pulled the drive shaft out last night. I found the rubber bumper on the front of the shaft to be broken in half and ground out. Also, the boot on the PTO has been torn up and partially melted into a powdery sludge. This could have been from using a zip tie instead of callilau(SP?) clamp????? Actually had a dealer in Texas tell me that it would be fine to use a zip tie for this. It ran for about 25 hours since I changed the shaft last time and used the zip tie. The shaft would slip when I turned it by hand. I cleaned off the rubber sludge from the shaft and the inside of the PTO and now it looks like it's gripping. The splines look pretty good on the shaft. Would this sludge, if it got into the spline area inside the PTO cause the shaft to slip? How could this front bumper be torn up so bad when the rear bumper was fine? Thanks!!
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