New -- Thinking about 2016 F-Type R
#21
Foosh nailed it. Because the DIs inject straight into the combustion chamber they are exposed to temperatures over 1000 degrees and pressures several thousand psi higher than port injectors.
As a result they will suffer from substantial carbon deposit, more slowly with the additives in premium fuel, but still far more quickly than the port injectors. As mentioned earlier by RawwR, deposits will build up more quickly on the valves as well. As a result fuel system cleaning will need to occur more often. However, I don't see a fuel system flush called out in the F-Type maintenance intervals.
As a result they will suffer from substantial carbon deposit, more slowly with the additives in premium fuel, but still far more quickly than the port injectors. As mentioned earlier by RawwR, deposits will build up more quickly on the valves as well. As a result fuel system cleaning will need to occur more often. However, I don't see a fuel system flush called out in the F-Type maintenance intervals.
Last edited by Unhingd; 02-09-2015 at 06:45 PM.
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Foosh (02-09-2015)
#22
I think the supercharger and intercooler on our engines will have to be removed to access the intake valves. Walnut blasting is the preferred method of cleaning. Google the images, pretty nasty stuff. Something I didn't have to worry about on my previous E92 M3.
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Foosh (02-09-2015)
#23
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Unhingd (02-10-2015)
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