But even with high-quality fuel, the injectors can fail around 80,000 miles (120,000 km). The common rail system is sensitive to fuel quality. Also, there is a problem with injectors itself. The main symptom is a white smoke from the exhaust. That issue is common for late 2004-2007 model years. Copper seats under the common rail injectors can fail. The injectors are another source of problems. The problem was solved by installing reshaped pistons and new oil jets in 2014. That problem is characterized by the presence of black smoke, strong knocking noise, high crankcase pressure and loss of power. It usually happens between 60-100k miles (100-150k km).
#KD MAX TACOMA CRACKED#
The Euro IV engine versions had the serious problem with cracked pistons. Started from Euro 3 versions (European emission standard), the engines were equipped with water-cooled EGR system (exhaust gas recirculation).ģ.0 D-4D 1KD-FTV Engine Problems and Reliability The compressed air before the intake manifold goes into the air-to-air type intercooler mounted on top of the engine.Īll engines have an oxidation catalytic converter lowered the emissions. The air for 3.0 D-4D engine is supplied by a variable geometry turbocharger Toyota CT16V. The fuel is injected into the cylinders by the eight-hole type injectors. The common-rail pressure ranges from 30 to 160 MPa for the 1KD-FTV engine. The Common Rail system is an electronically controlled direct fuel injection system for diesel engines. The 1KD engine is equipped with the 'Direct Injection 4-Stroke Common Rail Diesel Engine System' or Toyota's D-4D. When the engine is cold, the valve clearance for the intake valves must be a 0.2-0.3 mm for the exhaust valves - 0.35-0.45 mm. The intake valve diameter is a 32.2 mm the exhaust valve diameter is a 27.8 mm.
Valves are actuated by the shim-less valve solid lifters/tappets (the adjustment requires replacement them by new). As was noted earlier, the head has 16 valves or four valves per cylinder (two intake and two exhaust valves). Camshafts are covered by a plastic head cover. The intake camshaft drives the exhaust camshaft by a gear. The engine has a timing belt for driving the intake camshaft only.
There is a steel-laminate type head gasket between them. The aluminum 16-valve DOHC cylinder head is mounted on top of the engine block. The pistons are cooled and lubricated with motor oil sprayed by oil jets at the bottom of the engine block. Also, the engine was equipped with the high-strength connecting rods and aluminum alloy pistons with resin-coated skirts. The crankshaft pulley has a torsional rubber damper to reduce noise and vibration. Inside the cylinder block, there is a forged crankshaft with eight weights and five main journals. The 1KD-FTV engine has a cast iron cylinder block with two counter-rotating balance shafts driven by a gear on a crankshaft.
0 kommentar(er)
