RE: Warm equioment17 Sep 2022 19:13
@KevR, he said they have delivered a rig fit for purpose, yet we are still waiting on the audit ?
Okay, we have been told the injectors had advanced wear, at 5000 hrs drilling, that should not be the case.
The fuel acts as a lubricant for the injectors, so we are looking at fuel contamination/quality causing that wear.
Before the injectors is the fuel pump, it delivers fuel under very high pressure, so likely has fine tolerances within.
So this is also at risk of wear which could reduce delivery pressures...
There are fuel filters before the pump to remove contaminates if maintained properly.
Since the RNS said they stripped the engine, then diagnosed the injectors as the fault, we cant be sure they checked the fuel pump.. it might be fine, could be worn, but still adequate..
That RNS should have been along the lines, we cleaned and tested the fuel system, and found advanced wear in the injectors.. Maybe drained, and clean the tank, checked fuel.
If you go back the the previous update. Epiroc upgraded the "management system" after a communications issue, well I assumed management of the drilling system, and maybe the pipe loader as that can be operated remotely..
Epiroc also did a road test but that was not given any association to the upgrade
But change just one word, Epiroc upgraded the "ENGINE management system" after a communications issue, now thats totally different, especially if the accelerator pedal is fly by wire, that controls acceleration by increasing or decreasing fuel.. If thats the case then this issue has persisted for months..
Nobodies fault, especially not He1's, its working through the stages, but If my suspicion is correct, the engine should have been load tested, on top of the road test.. Its easy to criticise
So at the moment once the injectors are replaced there is a chance the fuel pump will need changing, after reading whats in the RNS, still plenty of time..