Re: 410Customs TAKEUCHI mini excavator re furbish
The machine no longer dies under load or when warm!
I have the instrument cluster working
Since heymccall from Heavyequipment forum pointed me to a possible fuel issue I started digging into it.
I found the way the mr gasket fuel pump was installed was causing an air bubble on the gravity feed side of things. I simply removed the bolt and laid the pump flat in the engine bay pan. Ever since this and cleaning the fuel bowl, the machine will run all day! It has more power and it runs more smoothly.
I checked inside the fuel tank, nice and clean no obstructions. The fuel level was getting low which was matching the height of the electric pump = air bubble = so she was running out of fuel!
Once it was running better I decided to change all the filters and crankcase oil.
Cleaned the air filter, replaced the fuel filter, replaced the hydraulic return filter, and changed the engine oil /filter.
She was also down about 5 gallons of hydraulic fluid.
Thanks to the owners manual I found the hydraulic tank sight glass and cleared it off
Now it runs even more smoothly!
I replaced the diode and all fuses in the fuse panel. Cleaned up all the wiring connections on the back side of the instrument cluster (monitor) and fuse box.
Now the instrument cluster lights up, all lights come on then go off, except the battery/charge indicator it flashes.
The hour meter is even lit up! Next is to hook up the wires for fuel and water temp gauges see if they work too
After that try to hook up the rest of the feed wires, the oil pressure light, and others, confirm the alternator is charging
ALL of the safety wires / gauge wires on this machine have been unhooked! No stop relay on this bad boy, instead it the engine shutoff is now done by cable.
I know where there is a coolant temp sensor, a coolant gauge feed, another what looks to be coolant temp sensor? (3 coolant sensors), I see the oil pressure switch on the engine.
What I do not see if the air clog switch?, and a couple of the others but we will get to that.
In the factory wiring schematic there are two parts to the instrument cluster, the "monitor" (or lights/gauges) and the "controller".
Can anyone tell me where the "controller" is what it looks like? LMFAO
My guess is the previous owner when removing the safety solenoid/ electric engine shutoff and safety devices ripped out the control module?
Next is the hard starting, she still wants the ether to restart. bummer
When cold (sitting all night) it will not start without a small shot of ether.
The rest of the day when warm she will start up sometimes it takes some cranking, sometimes it fires right away. I still suspect a fuel feed issue/injection pump and also low compression.
I need to perform a compression test and see where we are at. While the injectors are out I can watch the spray patterns
For now I am working to remove all the hacks on this machine, fix broken loose wires and hook up sensors. Also fix the rest of the leaks.
The turbo feed or return line is leaking oil, likely just a bad O ring
One of the long hydraulic lines from the pump to the main valve is leaking pretty good, I plan to remove it and replace it.
Some wires are chaffed here and there, I am fixing those as I see them
I ordered a new grid heater, $36 on Ebay made by NGK. I am hoping this might help with the cold start issue, but I still suspect a weak injection pump or low compression or both.
Engine has no visible blow by coming from PCV tube, no black smoke, only light grey smoke when cold. This is a good sign and improvement.
No glow plug or thermostart on this model, only the grid heater.
I am taking lots of notes
will get some pics!
She is digging the clearing brush all over the place. My world of shoveling, pick axing, moving tree stumps and brush and loading trailers just got a whole lot easier........
1997 CCFB 7.3, ZF5, 4x4, 4.10, baby swamps, TS6, E99 spyder, RiffRaff pipes, 6.0 FMIC, RSK, 315 toyo at
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