FX-1 New 18/23 wont spin
- Thread starter dremmick
- Start date
demolition_x
Not After Fame & Fortune
- Location
- Holden Beach / Wilmington NC
I am pretty sure the impeller has been cut back. I don't have the pump any more to see if there were any spacers or else i would have included them.
SJBrit
Extraordinary Alien
- Location
- Bradenton, FL
I think he means that the prop is extending past the end of the wear ring and that the blades are therefore catching on the stator vanes. Dremmick, if you have do the original spacer in there then it sounds like you need a thicker spacer. Hit up Dave at Impros and see if he can help you out.
I think i found the problem. These are not my exact parts found them on net (just to give you a visual). Where the arrow is pointing on the prop is rubbing against the (arrow is pointing to it) part on the pump. The impeller fits fine in the wear ring (Sorry for the confusion tshank)
Flash-FX
No Square..No Round..FX-1
- Location
- South Jersey Shore
The "setback" impeller in the FX pump makes a big difference over stock. We used to remove the washer, then take the stator section (the part in pic 1) and chuck it up in the lathe, then remove the aluminum flush with the front seal, and radius the sharp edge (like with a 1/4" radius tool bit)...just to make it all fit.
If your impeller just touches a little (you can use a piece of clay in there to check for a clearance measurement), the material (nose of stator edge) could be removed with a die grinder. But don't grind the impeller, unless you have a fixture to re balance it (your feet will go numb from the vibration).
Basically,the closer the trailing edge of your impeller blade is to the stator, the better the hookup will be. The danger is if you ride in (debris) that will interfere with that clearance...stuff will start to break.
If your impeller just touches a little (you can use a piece of clay in there to check for a clearance measurement), the material (nose of stator edge) could be removed with a die grinder. But don't grind the impeller, unless you have a fixture to re balance it (your feet will go numb from the vibration).
Basically,the closer the trailing edge of your impeller blade is to the stator, the better the hookup will be. The danger is if you ride in (debris) that will interfere with that clearance...stuff will start to break.
The back of the prop is cut back 3-4mm. It must have been used on a set back pump. How does the prop tighten with out the spacer? what does the prop actually spin against? Im probally getting my refund back for the seller, so i dont have to go through this hassle. Also the gap betwen pump and prop is about this much (not my pump or prop just to give you an idea) 
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
just install a washer between the prop and the pump.