Are there any problems with the Nissan VK45DE engine?
Because of bad gasoline, your catalytic converters may be destroyed and their ceramic dust will get into the cylinders. If it has happened, more likely you will have to buy a new engine. To avoid such situation, you should better change upper catalytic converters for high flow cat converter and adjust ECU. Also the misfire problem is possible.
Can a late model engine have oil starvation?
Oiling issues on late-model engines are relatively rare these days, according to Osterhaus, but oil pump priming can be a problem due to the location of the pump. “We rarely hear of issues with late-model engines. We believe that this is due to blocks and heads designed to improve the return of oil back to the sump.
Can a new oil pump cause oil starvation?
While oil starvation may not be an issue with newer engines, oil pump priming can be more of a problem as the pickup tube lengths have increased as well as the location of the oil pump has changed. The oil pump is no longer sitting in the oil during cold starts.
What happens when your engine is starved of lubricant?
On restart, frictional zones (turbo bearings, shaft bearings, valve deck, etc.) are momentarily starved of lubrication (Figure 2). Figure 2. Dry Engine Starts Cold Starts – Cold wintertime conditions slow the movement of oil in the engine during start-up.
Because of bad gasoline, your catalytic converters may be destroyed and their ceramic dust will get into the cylinders. If it has happened, more likely you will have to buy a new engine. To avoid such situation, you should better change upper catalytic converters for high flow cat converter and adjust ECU. Also the misfire problem is possible.
What is the maximum torque of a VK45DE?
The maximum torque is 460 Nm (46.9 kg·m, 340 lb·ft) at 4,000 rpm. The VK45DE has an aluminum block with a five-bearings crankshaft supported system. It has low-friction molybdenum-coated pistons, forged steel connecting rods and microfinished crankshaft. The crankshaft journal diameter is 64 mm (2.52 in), the crankpin diameter is 52 mm (2.04 in).
Is the VK45DE the same as the VH41DE?
This engine replaced both VH41DE and VH45DE at once. VK45 cylinder block is new alumimiun 90° V8. Its height has remained the same (220.35 mm), cylinders diameter is 93 mm, and piston stroke is 82.7 mm. Length of connecting rods is the same, 147 mm, but they are less heavy.
While oil starvation may not be an issue with newer engines, oil pump priming can be more of a problem as the pickup tube lengths have increased as well as the location of the oil pump has changed. The oil pump is no longer sitting in the oil during cold starts.