"Flute ignition" during engine braking

2 posts · 1,752 views · started

#1
Original: German · machine translated
Hello,

I'd like to ask... I have the "problem" with my S4 (ABH) that if I take gas away for 4-5 seconds, which it then eventually starts to "spuck", sounds similar to a misignition, only much quieter.. I have the assumption that the oil is what it burns, and by the braking operation of the engine it is somehow not burned properly or worse...
Well, no one has to tell me that my valve shaft seals are no longer the latest... at 293tkm I am already aware of this, but it still runs quiet and airy and therefore I do not see any urgent need for action yet..... to come back to "spucking" again, I am right and what can happen with it, because actually I do not think much about it...;-) And with the KM performance are just various things....;-)

Thank you and a grump from the joker's......

Steffen
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#2
Hallo Steffen.
Die " Fehlzündungen" im Schubbetrieb können aber auch Nachverbrennungen im Auspuff sein, z.B. wenn an einer undichten Stelle Frischluft angesaucht wird und das ganze so zu einem zündfähigen Gemisch gemacht wird.
Ich habe dadurch schon mal ein komplettes Hosenrohr zerfetzt.

grüzzi aus dem Rheintal
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