Sterndrive extensions
1" extension
4" extension
Tightening torques: A-G-K = 33 Nm B-F-M = 18 Nm
Installation instructions for 1" and 4" extensions:
Press in the outer bearing race of the axial bearing in the extension. See under Shimming the intermediate housing and the lower gear housing.
Drain the oil from the sterndrive.
NOTE! Measure the measurement ‘B’ on the extension!
Remove the cover over the shift mechanism. Remove the screws (and washers) holding the lower gear housing to the intermediate housing. Use a rubber mallet and carefully knock the housing apart. Remove the splines sleeve. NOTE! When installing a 1" extension the washers will be used again and on the 4" extension the screws as well as the washers. Use special tool 884982 in combination with special tool 884316 to remove the outer bearing race of the axial bearing from the intermediate housing. Clean the contact surfaces of the housing carefully. Check the O-ring and replace it if necessary.
160
The 4" extension Coat the contact surface with a sealant, Volvo Penta part no. 1141570-0. Use the 3 new O-rings and the oil pipe from the extension kit. Install the extension on the lower gear housing. Tighten the bolts ‘A’ and ‘B’ in diagonal sequence. Tightening torques – see the picture! NOTE! Use washers ‘C’ underneath the 4 larger screws. Then install the existing splines sleeve on the lower vertical shaft and then the extension shaft and the new splines sleeve.
