Motorraum: Automatik !!

[Erich]

Ein E32 750 hat immer ein 4HP24.
Steht zwar auf dem Gehauese 4HP22 drauf, aber das Gehaeuse allein wird bei diversen Autos verwendet.
4HP24 hat ein groesseres Glockengehaeuse passend fuer den Anschluss an den M70 Motor, dementsprechend wird auch ein Drehmomentwandler mit einem groesseren Durchmesser eingesetzt.
Unterschiede Innereien laut Bill R., der selber eine Reparaturwerkstatt hat:

differences between 4HP22(used on 735 and other BMW like the E30 models) and 4HP24 (used on E32 750)

There are numerous changes in the 24 , first off

Springs with different rates are incorporated, next the torque converter diameter is increased to 280 mm then the bearing surface of the torque converter is longer to take the stronger loads, the converter lockup clutch diameter is increased to 300mm, the transmission bell housing is larger due to the increased converter size, the A tranfer plate is 15 mm wider in order to accept the larger A clutch, the stator wheel shaft is now mounted with 6 countersunk screws for a tighter connection with the transfer plate, a new pump body was designed for the longer converter shaft bearing, the splines on the input shaft are longer, both sealing rings on the input shaft are cast iron, the A clutch has a larger diameter and the clutch friction surfaces are increased in size also, the number of plates in the B,C and D clutches was increased by one in each,the one way clutch for 2nd gear has been stenghtened and riveted together, the oneway clutch for 3rd gear was changed from a roller type to a locking body type for greater torque, the planetary gear for 4 is much stronger now with forged webs, the output shaft diameter is increased and 2 holes are provided for more lubrication, the output flange has a larger bolt circle to take more force, the pan is deeper, the filter is different for the deeper pan.


und hier in Bildern
 Ashcroft Transmissions - ZF4HP22

Transmission Fundamentals
 http://www.bmwmotorsports.org/BMW_docs/transfund1.pdf

 http://www.shinseiauto.com/japanese/...tzf4hp2204.pdf

 http://www.automaticchoice.com/Catalogue/zf4hp24.pdf

Electronic Transmission Control 36 Seiten
 http://www.e38.org/electran1.pdf

und hier sind wir ein bischen am Zusammenbau des valve body
 BMW E32 valve body rebuild - YouTube
 BMW E32 valve body gasket - YouTube


und hier das 5HP24 zur Ansicht, ist ganz gut zur Info
BMW ZF5HP24 Valve Body Installation- IPT Transmissions
 BMW ZF5HP24 Valve Body Installation- IPT Transmissions - YouTube


Why Proper Flushing is Mandatory
 Why Proper Flushing is Mandatory - YouTube