Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 298Get this manual
3Remove locknuts from motor mounting studs (studs may turn out with locknuts)4 Pull up on motor assembly and remove it from
Reassembly
1Spread the brushes and install the armature into the
studsRemove "0" ring from motor base
field and frame assembly, as shown
2Install thrust washer, if equipped, onto armature shaftas shown
aThrust Washer
dLocknuts (2 Each)
3Install thru studs into upper end frame cap, as