Oil (instead of depleting its additive package from the start).
#Cat d11r full
Increased oil make up may also mask the actual magnitude of the soot problem, by diluting the soot readings.Įxhaust gas recirculation (in low emission engines) puts further soot loadings into the oil.Ĭorrective action- A twofold action is required to correct and control this problem:Īny soot/sludge residing in the crankcase needs to be removed, so as to provide full available service life to the Loss of detergency allows further piston ring deposits toįorm, which in turn, will reduce oil control. With increasing service hours, soot levels increase. Life, and allows further soot to settle out as sludge, as the oil service life progresses. Soot drops out of the oil as sediment, which is then re-suspended into the clean oil. Soot progressively overloading the oil's detergency/dispersency package. Increasing oil soot levels usually result from the amount of Oil soot is a product of combustion inefficiencies. The problems as well as necessary corrective and preventative maintenance are described below. While the full range of Caterpillar 3500 Series engines could potentially show problems, D11R dozers appear to be Polish, valve failures, broken rings are common end results of such deposits, and if addressed early enough, Cost Effective Maintenance’s corrective action will avert such damage, while eliminating The introduction of Monotherm Pistons, Exhaust Gas Recirculation Systems and high load factors.Ĭost Effective Maintenance have solutions to rectify engine deposit problems ranging from heavy combustion and exhaust space carbon, injector fouling, to severe crankcase sludging. The factors causing these problems include These include High Oil Soot, Bore Polish, Sludge and Overheating.
Since then, there have been some concerning problems for operators. Caterpillar 3500 Series engines were modified in 2004 to meet new, lowĮmission requirements.
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