Special Projects
Off Road and Overlanding
The car in service is: Toyota Land Cruiser J90 3.0 D4-D
Problems Reported: problems with the injectors/ replacement ring washers
Even though any Toyota is considered ruggedness incarnate, every model or engine has some weaknesses. Problems (rare though) with the injectors are some of the common ones for this engine model.
General presentation
Land Cruiser Prado J90 (Second Generation)
An emblematic off roader, born from the famous LC70 series and continued by what we see today on our streets LC 120, and the current LC150. Prado means meadow, meadow, glade in Spanish. The engine on this car is still in use!
First appearing in July 2000, the 1KD-FTV was the first iteration of this generation and was first used in the Toyota Land Cruiser Prado J90.
The 1KD-FTV is a 3.0 L (2,982 cc) four-piston common-rail D-4D (common rail four-stroke direct injection diesel) with variable nozzle turbocharger (VNT) and intercooler .
It has 16 valves and a double overhead camshaft (DOHC).
Bore and stroke are 96mm × 103mm. It generates 127 kW (170 hp; 173 bhp) at 3400 rpm and 343–410 N⋅m of torque at 1800–3400 rpm,
This engine’s redline is at 4200 rpm.
The compression ratio is 17.9:1.
This engine uses Toyota’s D-4D Common Rail fuel injection technology, which operates at ultra-high pressures of up to 1,350 bar (19,600 psi), which is approximately 8 times the pressure of conventional fuel injection systems. fuel in a “common rail” that feeds injectors on all four cylinders.
This is combined with a 32-bit ECU that controls fuel quantity, valve timing and boost pressure at various engine parameters, resulting in the best fuel economy and also full power utilization during acceleration. Pilot injection is also used by the common rail fuel system to ease the operation of the engine. Small amounts of fuel are introduced into the combustion chamber before the main injection event, reducing lag time and promoting more continuous and complete combustion. External and internal engine noise is also reduced.
The 1KD engine produces 17% more power with 11% lower fuel consumption than its predecessor, the 1KZ engine.
This engine was first used in Toyota Land Cruiser Prado, third generation Hilux Surf, fifth generation HiAce and now used in Toyota Fortuner and Toyota Hilux.
Mitsubishi Pajero Third Generation 2007
3500 CC, 120 KW
6G74 GDI V6 Engine
The 6G7 series, also known as the Cyclone V6 engine, is a range of V6 piston engines produced by Mitsubishi Motors from 1986 to 2021. The series includes five displacement variants, both SOHC and DOHC, with naturally aspirated and turbocharged layouts. Some versions also feature MIVEC variable valve timing and gasoline direct injection, and the engine has been the flagship powerplant for Mitsubishi, with the exception of a brief V8 production from 1999-2001. The 6G7 has been used in high-end sedans, and was fitted with twin-turbos for the Mitsubishi GTO, making it the most powerful car produced by the company at the time.