any tricks to removing stuck impeller?

[Little_Franny]

I am attempting to break down a pump that was in a blaster to swap shafts and install in a rickter. I have the spline tool and the impeller tool, got the impeller to break loose and made 4-5 easy turns on the shaft and then locked up. Destroyed the impeller hex tool shortly there after. I know stainless loves to gall up threads and I am afraid that whoever put the impeller on the shaft did not grease/anti-seize the threads.

Any tricks to get this apart short of cutting the impeller off the shaft?

 

[JetManiac]

Lots and lots of heat, heat/cool cycles can help but if impeller is ss you may have galling/damaged threads and it can be a pita to remove.

 

[whitca]

Are you able to tighten it back down? Spray pb plaster or silicone spray on the threads? Heat the impeller?

I have dedicated a harbor freight box wrench to my impeller hex tool (19mm I think) so it prevents the cheap little hex tool from twisting and breaking. I just leave the tool in the wrench.

*edit* a buddy of mine swears by melting candle wax down the nose of the impeller but I've never tried it or needed to.

 

[Little_Franny]

Yes its a stainless impeller.

Yes I suspect Galling to be the culprit.

Yes I used heat, although I was being modest with it, also was using a penetrating spray.

I could only get 1/8th turn either way when the tool gave up the ghost, but I was using a pipe wrench at that point and the tool was slipping inside the impeller.

I will have to order a new hex tool and attempt again. Ill do my best to get the impeller cherry red a couple times and see what happens.

Thanks for the replies

 

[bsc702]

Heat Heat and more Heat!........................but not to much. and make sure you spin it off clock wise.

 

[speedysprocket]

Get it red hot and dunk it in cold water too to shock it. Then heat again and attempt to turn it.

 

[Little_Franny]

I was going in the correct direction, like I stated I got a good 4-5 full turns before it galled up.

Will heat cycle it and cool with penetrating lube a couple times and get a new tool and see what happens

 

[DAG]

order the h2o designs tool. It wont bent like the cheap OEM tool

 

[Proformance1]

Second that on the H20 tool, I was going through two or three of the regular tools a season on pumps. They would bend right over. Ordered the tool and heated the prop up till it started smoking internally, came right off with a hammer dead blow onto the 7/8" box wrench on the H20 tool.

 

[Lumpy]

Just use a 5ft cheater and a torch

 

[Proformance1]

Yeah. Tried that. The tool just spun in the prop. Lol. Have to have a hardened tool

 

[kraqus]

order the h2o designs tool. It wont bent like the cheap OEM tool

What is this tool you talked about?



Benny

 

[MADMAT]

TONS of map gas heat!! And if that doesn't work weld on ears and remove it on a lathe.

 

[MADMAT]

Yes what is this tool!?

 

[DAG]

C'mon guys really? You're making me do this haha
http://bit.ly/11YGuZS

 

[Fro Diesel]

I welded a wrench on two props recently. Trick is keeping thespline tool from moving at all. Broke two vices. Eventually welded the spline tool to an old hitch reciever on an suv. Then a 5ft cheater pipe on the wrench welded to the prop

 

[Proformance1]

For the super lazy people in the group
http://www.x-h2o.com/index.php?threads/yamaha-extended-impeller-hex-tool.151817/

 

[DAG]

For the super lazy people in the group http://bit.ly/11YGuZS

Fixed

 

[Little_Franny]

Ordered the fast elements tool and got it in good time. I can say that this tool is strong as hell..... I broke the driveshaft and tool is still usable.... Anyone have any ideas?

 

[Little_Franny]

Did everything I could, LOTS of heat, multiple heat cycles, shocked in bucket of cold water, penetrating lube, reversing direction.... Tried everything, but in the end the stainless held strong.

On another note is it common practice to ditch the rubber end plug for the impeller and fill with RTV?