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Injector Cleaning for all
Fuel Injected Cars
Consider
This
The problem of clogged injectors is caused by the combination
of our use of fossil fuels with the very fine tolerances that
exist in Electronic Fuel Injector systems. As we burn organic
fuels in our engine and these fuels do not burn "clean", injectors
become blocked. Considering these facts with the reality that
the injector's operation is measured in milliseconds (thereby
multiplying the effect of the minutest discrepancy many times
in a second), the need for very clean pintles, director discs,
seats, etc in the injectors becomes extremely significant.
Even delivery across all injectors and a good atomised spray
pattern after cleaning is essential for smooth, economical
performance. Some Benefits Include:
· Improved performance giving you what you paid for in your
EFI vehicle.
· Improved economy. You will use less fuel.
· Improved engine efficiency.
· Saves you money.
· Better for the environment.
· Well-atomised fuel burns more evenly and readily than dripping,
un-atomised, fuel in your combustion chamber.
· Move you closer to perfect combustion.
We at Mildren Race Engineering believe that the only way to
do the above is to:
1. Remove the injectors from the vehicle.
2. Test and record results for all injectors : Leakdown, Atomisation,
Timed open flow, Timed pulsed flow.
3. Ultrasonically clean the injectors (employing effective
safe and environmentally friendly solvents).
4. Backflush the injectors at operating pressure.
5. Repeat the tests at point 2. above, to verify the effectiveness
of the entire operation.
6. Re-install or return clean and properly operating injectors
for the owner.
7. Provide the owner with a meaningful and accurate report,
together with an explanation of the report.
If the injectors are not removed from the engine and examined
properly before and after servicing, there is no way for the
professional to be absolutely sure that each and every injector
is delivering a well-atomised spray of accurately metered
fuel to the combustion chamber.
Diagnostics on your car
Recently one our good clients brought in his Mazda RX7 series
5 turbo with an engine running problem.
The engine would not idle properly, was losing power, and
was not driving as smoothly as it normally would. We proceeded
to check over the car and look for any obvious problems, which
may cause the symptom. Upon compression testing the engine,
we found the compression across the six compression strokes
to be quite uneven.
This, for those who aren't familiar with this problem, means
something is not quite right inside the engine. The only way
to verify the exact problem is to remove the engine from the
car, disassemble the engine and look for something broken
or deteriorated in condition.
We found with this particular engine, no broken parts, but
un-usual carbon build up on seal's, which did not move as
freely as they should. This is curious - how did this come
about?
We tested the four injectors for flow - and there we found
the problem! We recorded flow discrepancies between injectors
of up to 9.5%.
This means that some of the injectors were delivering up to
9.5% more fuel than others.
The effect of such a discrepancy would no doubt have led to
bad fuel economy and unstable idle.
The effect inside the engine would have been some of the engine
running rich in mixture and some of the engine running lean
- in other words un-even fuel delivery!
Now, what can you learn from someone else's experience? And,
what's the difference between this particular car and your
own? This car in our story is a regularly maintained, electronically
controlled, fuel injected vehicle, just over 10 years old
and unmodified.
Prices
Service for each injector includes :
1. solenoid winding resistance check
2. before & after spray pattern test
3. before & after leak test
4. before and after, full flow & industry standard flow rate
report
5. Ultra sonic bath cleaning 6. back flushing each injector
6 injectors of less $25.00
7 injectors or more $22.50
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