Recent content by aurthuritis

i think you are on the right track. if adjusting the high pressure relief does nothing it is because the internal leakage is probably preventing it from working anyway. remember to readjust it after you install new valve plates. i agree and would hold adjusting the rpm until you get proper...

step one-- get the oil hot -- Kubota oil and filters step two-- check engine full rpm 3650 with peddle against stop and hst speed lever just off of it's full stop. step three-- with the above checked and corrected if necessary, check hst pressures and adjust as needed step four-- if performance...

what you need to do is get the transmission up to operating temp and hold it there for a while to get all of the housings real hot before you check the pressures. make sure to check the charge pressure also because a low charge pressure will affect the fill time and volume of the rotating valve...

at what oil temp did you check the relief pressure?

what was your reasoning to tweek the servo? and yes about the filters---never go by color alone for the filter placement...i have seen the kubota filters exchange colors several times---always use the filter number. thanks for sharing

that is a pretty bad one for sure. not your every day wear and tear. one thing about a new hst over rebuild is the year warranty

probably a ball out of the thrust bearing went through? could it have had badly water contaminated oil and it froze? do the parts look blued from heat?

sorry. i don't know what is the best laser tach. might check into a photo tach??

since your rtv is so new i would let it break in before i adjusted anything. the shifting gets easier as the hours build up but never really go completely away

the oil moving in the tank under the seat is the power steering and bed lift circulating. the gears will only move if driven by the hst or as you did by moving the machine back and forth. if you don't have a charge pressure oil the swash plate won't tilt and the rotating valve assembly won't...

you need to adjust the dump valve so that you don't need to shut off the engine.

this is probably a good place to drop this information----- i fyou are inclined to tinker and are willing to spend a little money on tools??? with a set of test gauges an accurate cheap laser tach and laser thermometer and some basic hand tools wrenches vicegrips screwdrivers etc you can adjust...

https://www.amazon.ca/gp/product/B01IF4J6TI/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 NOTE==== this link is to a canadian amazon seller. the U.S. amazon has the same product though just adjusted for different currency as recommended by another member

would you share the source and part number thread size etc for the adapters and gauges? i agree a set of high and low pressure test gauges would be beneficial.

i would remove the snap ring and cover from the charge pump and inspect the pump and especially the oring under the cover??? it could be sucking air at this point and not draw oil?