Cannot get nut loose on impeller - Ryobi Blower Vac 205mph Leaf Blower Or Vacuum Gas Powered Gasoline Zr08510

Should be a cap on top you can pry off. Then a nut down inside you loosen to pull agitator up and out.

I think an air leak into the suction side, or with the new-found power of a tight impeller, the water level in the skimmer box is a bit low.

Check all joints, especially the rubber bellows which is usually on the suction side of the pump basket, and the seal on top of that basket.

It sounds like you may have a cracked or broken impeller

loose impeller or broken part inside casing, the pressure relies on the casting being made to have a very close tolerence with the impellers movement. if a wall inside the casting is broken away from the original position that it has to be in order to create the pressure constantly. or the impeller could have lost its key or the nut that holds in place came loose and it spins but not enough to maintain any real pressure.

hello mate for my opinion that turbo as got a problem it calls impeller problem now if your impeller gets damaged cause manufacture or the bolt attached in the middle get`s loose and impellar goes out balance till brakes need to stop the bolt to come off and need good skill use steel lock nut with double flat washer to bend ans stop any movement .

On the top of the splined shaft that holds and turns that agitator, there is usually a locking tab on the bolt or washers. Check to see if there is a hole in the shaft for a castle nut to use a cotter pin. You can also use a locking nut on it. They have a nylon part that allows the thread to cut into it and it wont back out. Last you could use LOCTITE on the threads to keep the nut from coming off.

Stating the obvious no, the impeller should be tight on the end of the crank, you need to remove the impeller and see why it is loose, it may be a key sheared, or just the fixing nut is loose, if the impeller is plastic it may have turned the centre out.

You do not supply much information, but yes, the impeller sits right inside a pump housing, Split the housing and the impeller is the vaned part that is attached to the shaft, the pump rear casing will have remained behind. The should be a nut holding the impeller in place and it may very well be a left hand threaded nut. Remove the nut and the impeller will come off with a little coaxing. Some impellers are press fitted and may need a puller to remove.

I have never taken this pump apart.
If I were in your position and I could move the impellar 1/8 turn, the next thing that I would do is carefully loosen the nut on the end of the shaft being careful that nothing else disassembles. Once this nut is loose say 2 turns, try the impellar again watching what is moving. It seems that the nut may have to be removed.
Also, I'm not sure which way the nut of the impellar rotates to remove, but you seem to have that under control since you have it moving already.
Gary

After taking the housing apart grab the opposite end of the impeller shaft with a good set of channel locks (my old standbys weren't sharp enough). Then while holding it tightly hit the old impeller blade with some sharp raps with a hammer, knocking the blade loose (hit the blade at a tangent, it loosens to the left like a regular nut and bolt). Once the impeller is loosened it can be unscrewed by hand and replaced.