Powerhead Reassembly; General Information; Crankshaft - Mercury 15XD Service Manual

Powerhead Reassembly

General Information

Before proceeding with powerhead reassembly, be sure that all parts to be reused have
been carefully cleaned and thoroughly inspected, as outlined in " Cleaning and Inspec-
tion" . Parts, which have not been properly cleaned (or which are questionable), can se-
verely damage an otherwise perfectly good powerhead within a few minutes of operation.
All new powerhead gaskets must be installed during assembly.
During reassembly, lubricate parts with Quicksilver 2-Cycle Outboard Oil whenever
2-cycle oil is specified, and Quicksilver 2-4-C w/Teflon Marine Lubricant whenever grease
is specified.
Any GREASE used for bearings INSIDE the powerhead MUST BE gasoline solu-
ble. Use only Quicksilver 2-4-C w/Teflon Marine Lubricant or Quicksilver Needle
Bearing Assembly Lubricant. The use of any other grease may result in power-
head damage.
A torque wrench is essential for correct reassembly of powerhead. Do not attempt to reas-
semble powerhead without using a torque wrench.

Crankshaft

NOTE: Three designs of crankshaft seals have been used. Design 3 is the current ap-
plica-
tion.
a
a -
b -
c -
90-826883R2 JUNE 1998
b
Design 1 -- O-ring fits in groove on driveshaft
Design 2 -- O-ring fits inside of carrier
Design 3 -- 3 lip seal permanently installed inside of carrier
CAUTION
c
POWERHEAD
57097
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