TurboCharger Lubrication


The TurboSafe TEP3000 was developed in the early nineteen eighties to address the failure of diesel engine start up due to turbocharger failure caused by oil lag on start-up and coking caused as a result of hot shut downs.

NATO extensively tested the TEP3000 and issued a NATO buying number for procurement of the accumulator for its fleet of idle equipment in Europe. The Canadian Dept. of Defense currently has the TEP specified for all of its fire pump applications.

Oil lag is defined as the time delay that occurs between engine start-up and the time it takes for the build-up of oil pressure to begin lubrication of the turbocharger; each diesel engine model has a different time delay as a result of the engine design.

Hot shut down occurs when the diesel engine has been running at a constant speed for a period of time and the engine is shut off before the turbocharger has had time to slow down; the turbocharger will continue to spin for up to two minutes without oil. The life of the turbo is shortened because of wear occurring from no lubrication; the oil vaporizes and forms abrasive deposits, called coking that eventually results in the failure of the close-tolerance turbo wheel.

Depth 3.87 Inches
Width: 12.75 Inches
Height: 7.5 Inches
Weight: 12.75 lbs
Specific Characteristics:
  • Oil capacity start up 10.14 oz/ 300 cc
  • Oil capacity shut down 13.52 oz/ 400 cc
  • Discharge pressure start up 15 PSI/ 1.0 Bar
  • Discharge pressure shut down 20 PSI/ 1.4 Bar
  • Option 12VDC or 24VDC solenoid
  • Air powered solenoid available for explosion proof applicaions
  • Option BSP or JIC fittings
  • 3/8" fittings with two PTFE steel braided flex hoses
  • Two universal mounting brackets
  • Wire harness 57" long
  • Operates on all diesel manufacturers engines 

Two Year Warranty



When first installed, the accumulator is empty. When the engine is started, the accumulator is charged by hydraulic pressure from the engine oil pump. The piston is pushed back to the end of its stroke.


The piston remains in this position as long as there is full oil pressure in the engine. The instant the engine is stopped, the oil pressure drops and the piston is driven forward by the pressure of the spring. Oil is forced into the turbocharger bearings at 20 psi (1.4 bar) for approximately 2 minutes while the hot turbocharger rotor is spinning. The oil supplied from the accumulator, lubricates and cools the bearings and rotor.


The piston continues to move forward until it reaches mid-point and the locking cone at the end of the piston rod engages the locking pin. The piston remains in this position until the engine is required to start. When the engine receives a start signal, the solenoid is energized and the locking pin immediately releases the turbocharger oil at 15 psi (1 bar) on a continuous basis until engine oil pressure is reached and the piston is forced back by oil as described in stage one.


Installation is very straight forward and is simplified with the universal installation kit. The TurboSafe can be mounted on the engine or at a position up to 2 metres away. The installation kit consists of PTFE stainless covered pipes, wiring harness and brackets.


TurboSafe TEP3000 on a Kohler 750ROZD 750 kW generating set. This genset provides emergency standby power for the air traffic control tower, at Pearson International Airport in Toronto.

The Mining Industry presents an extremely hostile environment for operating turbocharged diesel engines. A Canadian mine was suffering turbocharger failures at an average of 3,000 hours on its fleet of scoop trams, and underground haul trucks.

Since the installation of TurboSafe, the fleet has now logged over 6,000 hours with no turbocharger failures.

A leading supplier and operator of cogeneration sets has now reduced its maintenance costs by installing TurboSafe on their generating sets. Prior to this, with exhaust temperatures as high as 1300 degrees F, turbocharger failures occured after only 5-6 hot shutdowns.

After installing TurboSafe there has not been a single turbocharger failure.

  • CAT engine