Warmstartproblem der anderen Art (GELÖST) | Posts 32+

Hi Herbert,


That's not it. The grease shouldn't only be temperature-resistant, but also allow the bearings, etc. to run easily.
hg
Herbert.

Thank you for the tip.

Best regards, Oldi.

Hello fellow enthusiasts,

My problem is solved!

I got a used starter motor from a car dismantler for 50€ and installed it.
I specifically chose the 2.0 kW starter motor from VALEO (Valeo part number D7R33, VW part number 068 911 024 E) (factory equipment: 068 911 024 C).
But be aware: I believe that this number also includes the slightly weaker BOSCH versions with 1.8 kW.

With this part installed, the engine is almost unrecognizable. It also starts up very quickly, even when it's already warm!
Der ehemalige, etwas asthmatische Klangeindruck ist einem fast düsentriebähnlichem Geräusch gewichen...
The new or used starter motor spins up so quickly that the effect I described earlier cannot be reproduced if the engine is started for too short a time (resulting in a rough running condition at 500 RPM).

I will provide the exact data (starting speed with a warm engine, current, and voltage) later.

Best regards, Oldi.

Thank you for the problem-solving!

You're welcome!

If someone is already helping you for free, the explanation of the solution should be a given.

Only in this way can other 'diesel mechanics' benefit from it!

Best regards, Oldi.

Quote:

Die genauen Daten (Start-Drehzahl bei warmem Motor, Strom und Spannung) werde ich noch nachliefern.

Okay. With that, you would have a speed at which it should reasonably start up.

EDIT: Afterwards, we'll wrap things up here.

Hello fellow enthusiasts,

Here are the promised values with the newly installed (used) starter motor 068 911 024 E (VALEO D7R33, 2.0 kW):

Starting speed:
It fluctuates between 210, 252, 294, and 315 RPM, with 252 RPM and 294 RPM being the most frequent values. Therefore, I estimate it to be around 270 RPM.

Performance:
10.7 volts and approximately 195 amps result in roughly 2.1 kilowatts.

The difference in starting behavior at 210 RPM versus 270 RPM is significant!
In my case, the exchange of ignition coils was definitely worth it.

Of course, for good starting performance, the cables and connection points must be in perfect condition (and don't forget the battery and the ground connection).

By measuring voltage and current (assuming a relatively accurate clamp meter is used...), it is possible to make an assessment of the electrical system in advance (without having to loosen any screws ).
With a power consumption of approximately 1.8 kW and a starter motor with a capacity of 1.8 kW, the wiring and battery are definitely fine!

Best regards, Oldi.

Servus Oldi!

Auch von mir einen herzlichen Dank für Deine Auflösung!!

Allzeit gute Fahrt!

Best regards from Munich!