BHudson
Jet Boat Lover
- Messages
- 48
- Reaction score
- 26
- Points
- 67
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- AR
- Boat Length
- 23
I recently bought a used 2019 AR240 to upgrade my 2008 AR230. I quickly learned my 240 was leaking about a gallon of water per hour into the bilge every time I was on the lake. The plug, bilge access tray and every water and exhaust connection I could think of checked good. With the bilge access tray removed and the boat in the water, I could see water seeping slowly from both ends of both of the short rubber tubes connecting the rear of the intermediate bearing assembly to the hull/transom. The pump shaft turns inside this rubber tube. While I could see water seeping from all four ends of this tubing, I didn't believe this was amounting to almost a gallon an hour, but in my case it was...maybe it leaked more when under way but I never checked that.
The fix wasn't to difficult, but it did involve pulling both pumps. With the pumps out I removed the four tubing clamps, the white plastic bushings screwed into the hull with three screws and finally I could pull the rubber tubing off the intermediate bearing bushing. Access to the white plastic bushing is from the rear through the opening for the pump and drive shaft. I cleaned the ineffective silicone from the bushing, tubing and rear of the intermediate bearing assembly with a final wipe of acetone. I put the tubing and bushings back together with 3M 4200 fast cure and replaced the hose clamps. That stuff is messy and gets on everything but that's why it works so well. From there I re-installed the pumps and nozzles.
A day later, I was pleasantly surprised to see a bone dry bilge after hours of running on the lake. When I pulled the boat out of the water after six hours of running and floating I got less than a teaspoon of water draining out of the bilge where days before on previous trips I would have gallons draining for several minutes.
Hope this helps!
The fix wasn't to difficult, but it did involve pulling both pumps. With the pumps out I removed the four tubing clamps, the white plastic bushings screwed into the hull with three screws and finally I could pull the rubber tubing off the intermediate bearing bushing. Access to the white plastic bushing is from the rear through the opening for the pump and drive shaft. I cleaned the ineffective silicone from the bushing, tubing and rear of the intermediate bearing assembly with a final wipe of acetone. I put the tubing and bushings back together with 3M 4200 fast cure and replaced the hose clamps. That stuff is messy and gets on everything but that's why it works so well. From there I re-installed the pumps and nozzles.
A day later, I was pleasantly surprised to see a bone dry bilge after hours of running on the lake. When I pulled the boat out of the water after six hours of running and floating I got less than a teaspoon of water draining out of the bilge where days before on previous trips I would have gallons draining for several minutes.
Hope this helps!
