They timed the injection or measured the fluid… but my point is specifically what Kubota prohibits.How did Caterpillar, John Deere, et al get away with it prior to glow plugs and intake heater grids?
They timed the injection or measured the fluid… but my point is specifically what Kubota prohibits.How did Caterpillar, John Deere, et al get away with it prior to glow plugs and intake heater grids?
Yeah its frustrating that they'd do that. However, I did have them do a compression test in front of me and the motor still turned over fine. SO fortunately I think the motor is ok. We will see soon.Kubota SPECIFICALLY WARNS NOT TO USE ETHER OR STARTING fluid on a diesel. I hope you have their statement that they used ether on it in writing or w/ a witness.
Think about this: A diesel is a compression-ignition engine… when that piston comes up on a compression stroke it HEATS whatever is in the cylinder to the point that if fuel is merely INJECTED it will cause detonation immediately. Starting-Fluid/Ether is highly combustive at ordinary atmospheric pressure!…. and as the piston is traveling upward in the compression stroke… the ether will combust PRIOR to Top-Dead-Center and potentially blow the piston or bend a connecting rod, etc.
If your engine was in sound mechanical conditon prior to those idiots at the “dealer”…. then their actions may have seriously damaged your engine.
IN OTHER WORDS their admission that it ”was starting to “hydrolock”…. IS PROBABLY PROOF THEY’VE DAMAGED IT.
(A “hydrolock” is when an incompressible fluid is trapped in a compression-stroke and prevents the piston from reaching TDC….thereby “locking” the engine from rotating. It can cause serious damage. Their comment in that regard confirms to me that they witnessed that the use of ether “locked” that engine.… Strong evidence they are liable to have damaged it.)
The difference in ignition points (flammability) between ether and diesel is VAST.How did Caterpillar, John Deere, et al get away with it prior to glow plugs and intake heater grids?
Well, either way i will have them write a statement saying they used ether on the engine.The engine will turn over with broken rings or broken piston ring lands, which are the most common damages from using starting fluid. (ether)
The difference in ignition points (flammability) between ether and diesel is VAST.
Different engine configuration. I no expert, but I understand that a non-direct injection motor can tolerate ether.How did Caterpillar, John Deere, et al get away with it prior to glow plugs and intake heater grids?
It seems Kubota forbids it also on at least some IDI/PC diesel engines too: "Do not use starting fluid to prevent the serious trouble of the engine" for the S2600 engine, circa 1970's.... I understand that a non-direct injection motor can tolerate ether.
Whatever you do, capture that information in writing, with them in the paper trail. Could be your best insurance. But you don't need to get them to write the statement as they may 'forget' or refuse. Instead you are better to (others may have a better suggestion about this tactic) send them an email summarising the event, including in it word for word as best you can what they told you about ether and hydraulic lock. But not only that point, as you don't want it to be too obvious that you are backing them into a corner. So at the end you could ask for the engine quote in writing, or something innocuous. Get their reply email, if they don't dispute the ether and lock, then you have a statement that they have seen and not disputed. Might not be 100% watertight in court (not that I'm suggesting that route), but better than nothing.Well, either way i will have them write a statement saying they used ether on the engine.
I suspect they used the term “hydrolok” to describe the sudden stoppage of rotation of the engine after they sprayed ether into the intakes…. the actual stoppage being caused by the premature ignition of the ether.^^^^ This is excellent advice.
By the way, "hydraulic lock" requires that there be a fluid in the cylinders that prevents the engine from moving that piston any higher in that cylinder. Unless somebody poured something liquid in that engine, it's not hydro-locked. Spraying ether in it can't do it, unless they dumped a full can in there.
In other words, these people have ZERO clue what they are doing! You really should document all of this and report them to Kubota. They have no business working on lawnmowers, let alone tractors.
Possibly, but that just means they have no idea what they are talking about.I suspect they used the term “hydrolok” to describe the sudden stoppage of rotation of the engine after they sprayed ether into the intakes…. the actual stoppage being caused by the premature ignition of the ether.
You can't possibly know that at this point.I am almost positive that there is no internal damage to the engine.
Gotta solve 1 issue at a time.
It uses a Denso common rail fuel system.I will take it back to my shop and take a look at all of that. When they plugged the computer in, they said they saw an overheat code (which is why they skipped a lot of diag and went straight for compression test and saying its a bad motor), but according to the guys who were using it when it shut off, it wasn't overheating.
Edit: Does this engine use a Bosch CP4 common rail pump?
In reference to using starting fluid AKA ether in JD engines is these tractors had "cold weather starting kits" that had an opening to inject starting fluid that contained a ""small orifice that limited amount of starting fluid"" that could be introduced at any one given time.How did Caterpillar, John Deere, et al get away with it prior to glow plugs and intake heater grids?
Hello, just joined the forum.
I have an svl75-2 with just over 3,000 hours on it. I was operating the machine, when suddenly it shut off. It would crank but wouldn't start.
I will take it back to my shop and take a look at all of that. When they plugged the computer in, they said they saw an overheat code (which is why they skipped a lot of diag and went straight for compression test and saying its a bad motor), but according to the guys who were using it when it shut off, it wasn't overheating.
kubota does not use that strategyOne possible scenario....and someone who KNOWS how the 'computer' operates might be able to 'correct'...
While it was running fine.. the temperature sensor fails, and gives a single faulty high reading. The computer records this and shuts down the engine.
From then on, the computer will not allow engine to start and run AND displays the 'not true overheated' codes.
It 'should' be simple to erase ALL the error codes(both sets..), reset the computer to a KNOWN factory state, test temp sensor and then try to start it up.
When I used analog sensors for the greenhouse controllers, I always used 'Olympic averaging' ( read 10x, toss the high,low then avg the remaining 8 ). it does away with the 737MAX8 problem.
With the 'one wire' digital sensors, I read them twice as they have unique IDs and confirm they are 'OK'.