Importance of ‘being clean’ when installing injectors

It’s extremely important that these engines and all equipment are clean before any disassembly or re-assembly takes place. The internal tolerances are a little less than 3 microns in some instances, or around 1/30th of the thickness of a piece of dust.

Working on these units can be a situation of Russian roulette at the best of times, so please minimise the risks as best you can by  ensuring the bottom of the bonnet and all areas surrounding the fuel system are clean and free of dust or dirt.

Also, please be aware that ‘blowing’ things off with compressed air can sometimes create a lot of problems, rather than helping as you may be trying to do. In many cases the compressed air is filtered to only 10 or 20 microns, which, as you can see, can give you significant headaches. Spray gun inline filters offer a cheap and effective solution.

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