We deal in complete new and used engines from all leading manufacturers as well as new and used spare parts, both OEM and non-OEM and also rebuild kits, power upgrades, transmissions and accessories. We have been serving Australian businesses for more than 25 years. Our engines are set up on one of our load testers and run under load, ensuring oil pressure, turbocharger boost pressure, coolant temperature, thermostat operation (ensuring that the thermostat opens and the engine recovers), exhaust temperature, smoke condition and crankcase pressure (blowby/breathing) are all within correct running parameters.Īlldiesels is Australia's leading supplier of new and used diesel engines, new and used engine parts, machinery and equipment.Īt any time we carry in excess of 500 new and used diesel engines as well as a full range of spares parts and accessories for all major brands.
We inspect mains bearings, thrust bearings, connecting rod bearings, crankshaft journals and camshaft/followers (where possible). The ignition pressure in the direct-injection diesel rose to around 80 bar compared with 60 bar in the prechamber engine.We have in stock a great quality Mercedes diesel engine imported from the U.K. The fuel spray was directed at the wall of the combustion chamber a swirl duct in the cylinder head provided for the necessary turbulence of the diesel mist in the cylinder. However, it sprayed the fuel into the cylindrical combustion chamber at an angle of about 30 degrees.
The Mercedes-Benz design engineers ultimately decided to use a four-hole injection nozzle positioned almost dead-centre in the cylinder. Multi-hole injection nozzles and flat combustion chambers in the pistons were better still for fuel consumption, but likewise led to loud combustion noises and high peak pressures.
Particularly if single-hole injection nozzles were used with central combustion in a spherical combustion chamber, extremely loud noises and a high peak pressure were generated. Initially, however, the engines did not run as smoothly as their prechamber cousins. Direct injection results in lower consumption and higher output. The OM 352 engine introduced at the 1964 Geneva Motor Show by Mercedes-Benz was the first direct-injection diesel for commercial vehicles.
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