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045 Servicing Diesel Pumps & Engines

Large static diesel engines provide power for generators. They’re usually in situations where there may be  need for emergency power such as hospitals, mines, large factories etc.

These are not used regularly, but because they have to start up instantly in the event of a problem, they must be run regularly to test. This regular short operation sequence is the worst possible way to run diesel engines. Carbon deposits formed mean they require regular maintenance.

The wetblast process can allow easier cleaning and inspection of components like valves or diesel pumps for example.

Without the need to pre-clean, many hours and many dollars can be saved. Faults can be easily seen before reassembly which can save many thousands of dollars in damage down the track too.

Traditional methods can include placing components in a degreasing bath prior to steam cleaning or in a hotwash unit. These include hot nasty chemicals and lead to sub-optimal results making fault detection difficult There are no nasty chemicals or heat involved in the wet blast process. This means a safer work environment and lower costs.

The wet blast process rapidly removes all deposits, from burnt on carbon to corrosion, leaving component surfaces in an ‘as new’ condition with no measurable traces of metal removed and no surface damage.

The cut-away picture above shows how the Dana-Ridge wetblast process works.  The machine thoroughly agitates the media and water and draws from a collection point at the bottom of the sump.  It allows a highly efficient blast compared to other methods of wetblasting.

Benefits of the process

  • Provides a superior finish
  • Uses a high volume, low pressure pump allowing multi-gun operation
  • Air used only to atomise to obtain desired degree of aggressiveness of blasting.
  • Pump simultaneously provides sump agitation
  • Allows for both gentle or aggressive blasting with control over the air supplied to the process gun.
  • Little to no damage to more delicate parts. No heat-damage.
  • Recirculation of media giving long life and reduced costs.
  • Multi-gun system fed from single pump so uniformity of flow and concentration are maintained.
  • Bonus is simultaneous degreasing and rust inhibition.
  • Long working life from the glandless urethane-lined pump
  • Maximum use of space in the hopper as the pump is mounted to the back of the machine. This also allows ease of access for maintenance.
  • Using its scrubbing action, contamination, surface deposits, scale or burrs are quickly removed and carried away, leaving a very clean and smooth surface.
  • They are commercial grade machines able to operate hour after hour in a busy workshop.

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Once you have one of these machines, you'll wonder how you ever got along without it!