Make sure you mark the valve plates and put them back in exactly the same way you took them out don't drop the pistons and put them back in the
same bore they came out of,put the charge inner and outer rotor back in the same way it came out.
Don't drive the swash plate shaft pin out too far or yer screwed.
best to follow the manual and multiple video's on diss/ re assy.
Otherwise you will be getting another hydro on ebay.
Make sure you check the roller bearing surface on the output shaft gear for pitting, they tend to wear there.
----done a few
