Ive been a long time member here but with my tractors. Always have seemed to be lots of folks here that really know the kubota products, as well as good with diesel maintenance. Figuring the issue I am seeing with my new RTV is very similar to if it were a 3 cyl diesel tractor. All sure looks near identical to my L3200 and L2501, just one less cylinder. Im an all my life diy person, not much cant do, but have done limited work on my diesels.
I bought a RTVX900 diesel in 2018 while I was still working. Bought for a 2nd home we have in the mtns to take up there when we retire. 15 run hours to date, so to say it has sat a lot is an understatement. Up until these last 18 months have ran it around the property every few months. Only kept it partial full and would change out the fuel every year with one of my tractors that gets run regular just to avoid any fuel issues due to minimum running..
A few days ago I went to try and run the rtv, found battery dead even though on a tender. Got New battery, turned over but wouldn't crank. After a few times of trying decided to check the fuel system. about 1/4 tank, pulled filter checked thought its new, confirmed fuel flow to the fuel pump (gravity situation on this one) Filled tank thinking maybe some how due to sitting lost fuel prime due to low level. Had that happen with my L3200 one time, took forever to get that one primed but finally did.
Loosened the fuel lines at the injectors cranked it over to look for fuel at the injectors. 1 & 2 had fuel come out but 3 never would. Pulled all the injector lines and looks for spray at the 3 injector pump ports, only ports 1&2 would spray. Pulled the check valve assembly below the line on #3, careful so as not to lose any spring etc that might be inside. (NEVER BUMPED ENGINE DURING THIS) blew air through the valve, flushed it a few times with cleaner, blew out again every time always a good spray. Put back into the injector pump. Once again turned over quite a bit, 1 & 2 spraying as they should, but still nothing will come out of port #3.
At a loss as to what to really try next. 15 hr engine, shouldn't be much, but obviously something not right due to this thing sitting up. Hoping someone out there with some injector pump experience well chime in with some ideas.
Thank for any and all info, assistance, etc.
I bought a RTVX900 diesel in 2018 while I was still working. Bought for a 2nd home we have in the mtns to take up there when we retire. 15 run hours to date, so to say it has sat a lot is an understatement. Up until these last 18 months have ran it around the property every few months. Only kept it partial full and would change out the fuel every year with one of my tractors that gets run regular just to avoid any fuel issues due to minimum running..
A few days ago I went to try and run the rtv, found battery dead even though on a tender. Got New battery, turned over but wouldn't crank. After a few times of trying decided to check the fuel system. about 1/4 tank, pulled filter checked thought its new, confirmed fuel flow to the fuel pump (gravity situation on this one) Filled tank thinking maybe some how due to sitting lost fuel prime due to low level. Had that happen with my L3200 one time, took forever to get that one primed but finally did.
Loosened the fuel lines at the injectors cranked it over to look for fuel at the injectors. 1 & 2 had fuel come out but 3 never would. Pulled all the injector lines and looks for spray at the 3 injector pump ports, only ports 1&2 would spray. Pulled the check valve assembly below the line on #3, careful so as not to lose any spring etc that might be inside. (NEVER BUMPED ENGINE DURING THIS) blew air through the valve, flushed it a few times with cleaner, blew out again every time always a good spray. Put back into the injector pump. Once again turned over quite a bit, 1 & 2 spraying as they should, but still nothing will come out of port #3.
At a loss as to what to really try next. 15 hr engine, shouldn't be much, but obviously something not right due to this thing sitting up. Hoping someone out there with some injector pump experience well chime in with some ideas.
Thank for any and all info, assistance, etc.
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