Z32 gearbox on a S13 with ca18det

[shogun!]

Before you disassemble the clutch housing of the S13 gearbox, you have to make a centering device. Use a plexi glass plate (10mm) and drill a 16mm hole in the centre, put the plate over the shaft (snug fit) and carefully drill 4 small holes exactly in the centre of the holes where the gearbox is attached to the motor. Remove the plate and carefully drill the holes just as big to get the screws in


Result


Remove the clutch housing from the ca18det S13 gearbox. It is more or less just to remove the screws on the outside of the clutch housing, remove the cover and one snap ring.


Remove the snap ring under the cover


Comparision between the both gearboxes. One is useless over 350-400Bhp, the other last well over 1000Bhp and more.


Use an angle cutting machine and cut off the flange from the S13 gearbox ca. 50mm, take it to a machine shop and have it grinded down to 45mm. Important to get it absolutely flat and equal all around.


Use an angle cutting machine and cut off the flange from the Z32 gearbox ca. 40mm, throw away the flange and take the rest of the clutch housing to a machine shop and have it grinded down to 355mm. Important to get it absolutely flat and equal all around.


Both parts after grinding, cleaning and reattaching the clutch housing on the Z32 gearbox