Gear Inspection; Gear Reassembly - Mercury BRAVO Service Manual

DRIVE SHAFT HOUSING
Inspection
1. Clean all parts in nontoxic solvent; then dry with compressed air. Be careful not to spin
2. Condition of bearing surfaces in drive shaft housing and top cover are an indication of
3. Inspect socket of gear for particles adhering to clutch surface, and for discoloration. If
4. Inspect splines of clutch shaft for knicks or broken teeth. If any of these conditions exist,
5. Inspect bearing surfaces on clutch shaft for pitting, grooves, scoring, or discoloration.
Reassembly
1. Apply gear oil to splines and install bottom gear on shaft and allow it to rest on thrust
Page 3A-44
bearings. Inspect gears for pitting, chipped or broken teeth, and excessive or uneven
wear. Replace gear if any of these conditions exist.
the condition of the bearings in the gears. Inspect bearing surface for pitting, grooves,
scoring, discoloration from overheating, uneven wear, and embedded foreign metal par-
ticles. Replace gear and bearing assembly, and also bearing sleeve, if any of these
conditions exist.
particles and/or discoloration are present, attempt to clean up grooves on clutch using
a bead blaster or a pick. (Do not use a wire brush or wire wheel.) If, after cleaning,
grooves appear to be flattened or Nicked, clutch should then be replaced.
replace shaft.
Replace shaft if any of these conditions exist.
collar.
a
a - Bottom Gear
b - Thrust Collar
SERVICE MANUAL NUMBER 28
b
22106
90-863160 MAY 2000