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I assume that when you energize the coils it makes a big difference sound wise as it engages, not sluggish anymore.
I would look at your hoses and see if there is any markings about pressure marked on them, they should be rated higher than your working system pressures. as far as the cylinders go I would take them to a hydro shop and ask for a estimate on a rebuild, they can measure them and get approperate seal kits usally.
I believe that they are still around. Last I remember they had a web site that was pretty good for parts searches.
if you are looking to just replace one cylinder,they must be a exact match. I have seen that twisting does occur if not matched. so as a rule replace both cylinders at the same time. Or have that one resealed.
well I kinda got this figured out, I had replaced the orginal fuel sediment bowl with a ford 8n type sediment bowl. I can not use the reserve function since it is not screwed into the tank bottom. I plumbed it into the fuel line itself with a adapter fitting, So I turned the thumbwheel all the way out and just use it as a on and off valve . well I guess there is the issue. When I turn in the thumbwheel in to the reserve setting the turblance disappears, turn it out and it comes back, so why it is swirling between the two pickups I aint gotta clue, but it is. wierd!
I have noticed that the sediment filter when running at speed has a turblance in the bowl that looks like air swirling. When it runs at a idle none of this is seen. With the fuel on and the tractor off there is no fuel leaks which makes me think when running it should not be sucking air. It might be me but it seems to be loosing power ,fuel starving at higher rpms’s. got any ideas? all filters,screens are good.
the only people I found was circle g tractors and jinma usa . there used to be more I thought.
I assume I am correct on this, I am not familiar with the engine or hydros on the 404 but when you remove the hydro pump there should be a seal to the pump side of the drive gear. that seperates engine oil from hydro oil. that would be the one. please let me know if I am in error.
this is a guess but I suspect something deadheaded and blew the seal and loaded the engine with hydro oil..there has been problems with the quick connectors not flowing as they should, it has been suggested that they get replaced first when hydro problems start happening. you need to double check the valve you put in and make sure that all the connection ports match as to what they do to the old valve.
