Hi Everyone. Please i need some assistance to the diagnosis of a D8R Bulldozer which i just changed the top cylinder because the initial one had a crack. After changing it, it worked for about 8 hours and loss power and black smoke coming from the Exhaust manifold. I removed the top cylinder again to regrind the valves. I also tested the injector nozzles and they are okay. The black smoke is still there and there is no power to work. At low idle the smoke is okay but when set to work the black smoke is terrible.
D8r bulldozer diagnosis
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