Ich benoetige diesen Kugeldurchmesser:
Es geht um ZF Teilnummer 1043 226 028 Valve, "D" CLUTCH ONE-WAY CHECK VALVE ASSEMBLY aus Plastik, dafuer gibt es in USA eine modifizierte Kugel aus Aluminium: "Replacement" ALLUMINUM CHECK VALVE
https://web.archive.org/web/20…ulletin/DTC.BMW/01-34.pdf
Beschreibung des Problems und Beseitigung hier kopiert: BMW ZF-5HP-18 "BIND-UP" WITH SELECTOR IN MANUAL "2" POSITION, 1st GEAR
Before or after overhaul, vehicles equipped with ZF-5HP-18, may exhibit a "Bind-Up" condition in the Manual "2" position, 1st gear.The cause may be, the plastic "D" Clutch One-way Check Valve assembly located in the Lower Rear valve body, shown in Figure 2, may be broken allowing the "B" Clutch (Reverse Input Clutch) to be on while the "D" Clutch (Low/Reverse Clutch) is on in 1st gear. Replace the "D" Clutch One-way Check Valve assembly , as shown in Figure 1, with a new assembly from ZF, or a new "Aluminum" check valve assembly offered by: Mario Aristides.