1999 "EE" Outboards Accessories Service Manual, P/N 787026, Page 110Get this manual
Tilt Piston Identification
InThree different tilt pistons are used on the FasTrak hydraulic
unitsAll plungers and check balls are identicalThe tilt piston assemblies contain valving specific to certain modelsTo provide impact protection, it's important that the correct piston assembly be installed
[] 1900 V6Two of the piston relief holes are smallthe other two holes are larger Two of the springs have five coils and the other two have nine coilsOn assembly, the two five-coil springs go in the large relief holes, and the two nine-coil springs go in the small relief holes[] 23-Cylinder and 600 V4The piston relief holes are 0.093 inThree of the four springs are one length, and the fourth spring is shorterOn assembly, the shorter spring can be positioned in any hole in the piston[] 3.90 V4 and 600 V6The piston relief holes are 0.081 inThree of the four springs are one length, and the fourth spring is shorterOn assembly, the shorter spring can be positioned in any hole in the piston[] 4Remove and discard the small inner a-ring outer a-ring Piston Reassembly