Does anyone know how to get the hydro fan off the u joint on a 990?
Hydro Fan Removal
Posted August 15, 2014 - 02:28 PM
Posted August 15, 2014 - 08:22 PM
I had the same problem on mine. I soaked the shaft & yoke area with WD40, applied a little heat. I placed a ball joint remover tool between the shaft & pump housing. I tapped on this lightly & it came loose. Since my fan was already split I cut it off to get it out of my way. I will be replacing the fan with a new one.
Page 105 of my Thread http://gardentractor...-mtd-990/page-7
- BairleaFarm said thank you
Posted August 16, 2014 - 12:11 PM
Posted August 16, 2014 - 02:31 PM
Posted August 16, 2014 - 04:45 PM
Posted August 16, 2014 - 04:59 PM
Ideally the drive shaft u-joint is suppose to slide a little on the pump shaft, should there be flexing between the engine and transmission. Much like a car drive shaft. Over time the u-joint rusts and freezes to the pump shaft. The exploded parts view shows the key under the u-joint end.
I put grease or anti-seize on the shaft when reassembling.
Edited by VTXrider, August 16, 2014 - 05:00 PM.
- BairleaFarm and Sawdust have said thanks