Yamaha Waverunner GP1800 SVHO factory impeller removal

[@michaelatkinson9710]

Yeah, you need to invest in a good impact gun

[@TonyLatigo]

This made my day👏🏿👏🏿👏🏿

[@kckrol85]

That's crazy. So you are applying like 500 pounds or so to break that? What are you supposed to torque the impeller to when installing?

[@Texason2wheels]

Are those reverse threads or are you going the wrong way

[@paulgregg722]

Has he checked for a keyway?

[@KM447]

The impeller has a factory left hand thread.

[@KM447]

@@paulgregg722 I have removed a number of these impellers. There is no keyway, just a rather tightly torqued impeller with left-hand thread.

[@kevinmonday522]

How bout some heat first...?

[@KM447]

@@kevinmonday522 There are several rubber seals around the driveshaft just behind the impeller. Excessive heat near those seals could compromise the sealing lips, necessitating seal replacement..

[@maxmoto97]

There is alot of red loctight on those threads. Torch the fuck out of it right under the blades. Not at the very base, the threads are up about an inch from the base.

[@KM447]

I have not encountered Loctite on factory driveshaft/impeller threads (recent model year GP1800 and similar). The factory service guide suggests grease be used in that area. Some of us use anti-seize compound on the threads and impeller rear washer to ease impeller removal should it be necessary in the future. There are several rubber seals around the driveshaft just behind the impeller. Excessive heat near those seals could compromise the sealing lips, necessitating seal replacement..

[@maxmoto97]

​@KM447 Your right I was thinking about the 1050s that have loctoght on the impeller threads, for this one though, you can remove the drive shaft assembly along with the impeller and heat it up away from all the seals, being that it is very stuck heat might help brake it loose.

[@KM447]

@@maxmoto97 The example in the video is not unusual. That amount of torque effort is about normal for cracking loose a modern Yamaha factory impeller. No need for torch heat or disassembly of the driveshaft from the jet pump. Removing the factory impeller and installing an upgrade impeller (typically Solas) only takes a few minutes. Most of the time required is the removal and then re-installation of the jet pump. We use the same basic method to tighten the new impeller onto the driveshaft, but without the cheater pipe extension. Circa 200 pound guy standing on a wrench maybe 16 inches long, seems to work out about right for torque.