IH 464 hydraulic pump carnage

[12_Guy]

Thought I would share my experience with this hydraulic pump. This was my dad’s tractor bought new in ‘73. Ten years or so ago he had retired from farming, sold the equipment but kept the 464 for light duty work. Sometime after 2015 he changed the hydraulic filter. Unfortunately he installed the filter and bypass valve assembly backwards. The valve was in the filter but installed towards the MCV as opposed to out. This allowed unfiltered oil to the pump and may have restricted the flow. 
He would have used the tractor for bush hogging, wood splitting and light loader work. Dad passed, the tractor came home with me and I have used it occasionally. The hydraulics have been weak and slow for some time. I decided to get the filter changed to see if that helped and found the backwards filter. I was worried about the pump knowing it has been getting unfiltered oil for several years. Putting the filter in correctly seemed to help. It had better flow and made 2200 psi at the rear couplers. I was testing it out and heard a bang and then lost all hydraulic power. Steering, PTO, hitch. Upon disassembly, I found that the drive gear had sheared off the key on the pump. The pump would turn backwards but it locked up in the normal direction. 
Repairs will be a new pump and gear, seal kit for the MCV and new oil and filter. I plan to flush out the transmission as good as I can though the valve opening and filler hole. Any other suggestions??

This tractor has 6200 hours and was used pretty hard earlier in its life. 
Some pics for you guys. 

[HydroTek]

Seen the filter setup in backwards several times -- that pump has been shedding aluminum shavings for a while -- so look at all the passages in the MCV

and clean the transfer pump screen as best as you can -- really can't get to that screen very well

you can remove the large round cover on the RH side if the housing if there is a lot to clean out in the housing -- will give a little better access

[HydroTek]

12 minutes ago, kentucky gardener said:

was i right

You needing validation?  😆