The pump is not in the pan it is located behind the water pump which is attached to the gear case.How did you replace the oil pump BEFORE you took the pan off?
Kubota L2250 no oil pressure
- Thread starter kdsn
- Start date
And the cavity to the left of the oil fiter shaft goes where?? To the pump I believe.
That is right. The oil comes from the sump to the oil pump then to the port at the oil filter to one side of the screw, then through the oil filter to the center port (with the screw threads) then on to oil the engine. If it has a filter bypass it will be in that base and will open if the oil is to thick or the filter is plugged to allow oil to go from the outer port to the center one bypassing the filter.
Ed
Ed
eserv, screen perfectly clean as well as inside oil pan and motor. There is nothing inside of the oil filter base as in bypass. Pump has been changed. Start up and idiot light on ( has been replaced). Oil filter removed, start engine, no oil squirting out. As many times as I've started this engine I cannot believe if no oil pressure that a bearing has not spun.
In most cases the filter bypass is built into the filter itself, another reason you shouldn't use just any filter that screws on there!
I don't think you have a spun bearing either but you damn soon will have if you keep starting that engine without oil pressure!
when you crank it over oil should be coming out the port at the filter base, if it isn't there is something wrong with the oil pickup or the oil pump itself. if, as you say the pickup is on and in good shape then the problem has to be the oil pump itself or the components driving it. you better take that front off again and check out that new pump and be sure it operates when you turn the engine. you can safely crank over that engine to check the pump without reinstalling the front cover.
Ed
I don't think you have a spun bearing either but you damn soon will have if you keep starting that engine without oil pressure!
when you crank it over oil should be coming out the port at the filter base, if it isn't there is something wrong with the oil pickup or the oil pump itself. if, as you say the pickup is on and in good shape then the problem has to be the oil pump itself or the components driving it. you better take that front off again and check out that new pump and be sure it operates when you turn the engine. you can safely crank over that engine to check the pump without reinstalling the front cover.
Ed
eserve, the 2nd explanation does not agree with the first but the 2nd I agree with. Is the the oil pump driven off gears off the front of the eng?? Is there a keyway the pump splines onto?? I think I'd be pumping some oil into those holes where the filter goes just to get some oil into the bearings before you scar them. Did you pull the old oil pump apart??
Genuine Kubota filter..new. New oil pump. No sludge what so ever in pan or front case gears, pan removed, pickup perfect. When oil filter or sending unit is removed...no oil evidence. I know the bearings have not spun and the motor just purrs for the 20 seconds I let it run. The light is on, there is no oil coming from the oil filter base pump port....yet it runs. How can this be? Sooner or later BOOM!!!
eserve, wife got computer fixed. Was able to see those charts. They don't show exactly what I want to see, but I think all oil must go thru the filter (except , if the filter gets restricted), before going to the eng.
kdsn, Are you sure you have enough oil in the pan?????
kdsn, Are you sure you have enough oil in the pan?????
Right, all the oil goes through the filter. the only other place it could be going is through the system relief valve, it is before the filter.
Ed
Ed
Pour some oil into port for pump @ oil filter housing, started up, oil sprayed out....bout as much as I put in. Go figure.
That's good, you just proved the pump is working. Now find out why oil is not getting to the pump....
pat331
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