M70 Synchronisation neu schreiben?
Bisher sind wir ja immer davon ausgegangen, dass der Motor 3 x ueber 5.000 UPM gedreht werden muss zum Synchronisieren.
Habe da gerade was ueber den S70B56 Motor vom 850 gefunden, was ganz anderes ausssagt. Habe das mal von Seite 17 abgetippt und in roadfly reingesetzt.
Eure Meinung dazu?
---------------------------------------------------------
Did we do it all wrong with the M70 synchronisation??
Got hold of TS3 training course material, a kind of comparison between the M70B50 engine on the E32 and the S70B56 engine. On page 17 it says the following:
The 2 throttle valves are synchronized by the EML at idle speed.
The ti signals from the 2 DME control units (Pins 49, 50) are used for this synchronisation. The EML control unit can set a maximum dofference of +/- 1.7%.
It begins the synchronisation when:
-the EML coolant temperature sensor records > 80 degree Celsius
-the engine speed is < 1200 RPM
-the pedal value sender is not actuated
-20 minutes have passed since start-up of the engine
-the two ti signals before the DME control units are available and plausible
-the EML warning lamp does not light up
-the throttle valve stop has been learned
The synchronisation lasts approx. 3 minutes and is repeated after approx. 20 minutes at the earliest. If the learning values have been deleted as a result of a long interruption (approx. 15-20 minutes) of the power supply (control unit or battery disconnected), then the condition "20 minutes have passed since start-up" does not apply.
Important: the output stage of the EML control unit for the throttle valve servo,otor is not short-circuit-proof.
---------------------------------------
End of message from Service Training.
If this is all the same with the MOTRONIC/EML of the M70 engine, then the whole procedure as we have done it always is nonsens with 3 x > 5.000 RPM.
Any comments are welcome.
|