Carbon build-up in DI engines

Originally Posted by Mitco39 Diesels have been direct injected right from the start. Why do they not see this sort of thing happening? Its the same systems (EGR, PCV) on

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Carbon build-up in DI engines

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07-29-2014, 09:17 AM

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FlyByGTI

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Quote:

Originally Posted by Mitco39

Diesels have been direct injected right from the start. Why do they not see this sort of thing happening? Its the same systems (EGR, PCV) on both engines.

Water injection could be used to keep them clean no?

The Bimmer world uses Walnut blasting.

REVIEW: Cleaning of intake valves with BMW walnut shell blasting tool

I think it might have something to do with the way you are supposed to drive a diesel. I believe you are supposed to be driving them at high RPMs from the very beginning of their life, which is going to keep the carbon build up to a minimum is done properly

I may be misinformed on that though

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