Thema 8.32 betriebswarmer Motor startet nicht

[Ambassador]

Ein kleines Problem gibt es noch...leichte Drehzahlschwankungen im Leerlauf!? Drucksteller...Potentiometer Position Schwimmteller...Druckservoregler...Einspritzer...k.A.? Wo sollte man da beginnen?

Unter http://www.lancia-thema-832.de hatte mal jemand das gleiche Problem geschildert aber leider kein Feedback erhalten.

Und hier ein ähnlicher Fall
http://www.youtube.com/watch?v=k9I6N6wJoBY

Scheint also nicht einmalig zu sein :S

Grüsse Ambassador

[Stefan Elshout]

Is it really changing rpm or does your tacho only shows a change in rpm?
I would start with checking the gap between RPM/TDC sensor and flywheel. You can find the gap-tolerance in the documentation. I had it once on a 8.32 that the tacho was jumping up and down and it turned out to be the steel bracket on which the rpm sensor was mounted that was bent.

[Ambassador]

Hi Stefan,
the tachometer displays fluctuations that are also clearly felt and heard.

A good idea! I'll check it.

- gap tolerance between RPM sensor and flywheel -> 0,25 - 1,3 mm
- gap tolerance between TDC sensor and flywheel -> 0,4 - 1 mm

I will report.

Volker

[Stefan Elshout]

If one of these sensors malfunction (or there is an incorrect gap-size) it is possible that you will notice it on both your engine rpm and tacho, because the same 'data' that your tacho recieves is also used for your ignition system. In that case your ignition will advance and decrease rapidly and idle rpm will be affected.
In my opinion it is not very logical that it would be a problem with the injection system because second series 8.32 has (in contrary to first series 8.32) no idle rpm regulation or what so ever. But....i certanly would not disqualify a problem with the injection system, it would only not be my first guess.