Mercury D4.2L D-Tronic - Page 705

SEAWATER COOLING SYSTEM
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 6A-23
13. On D2.8L D-Tronic pumps: Install internal snap ring into pump body groove.
70628
a
a-Snap Ring
14. On D4.2L D-Tronic pumps:
a. Install spacer (washer) on shaft next to front seal assembly.
b. Install external retaining ring into groove of shaft.
70694
c
a
b
a-Front Seal Assembly
b-Spacer (Washer)
c-External Retaining Ring
15. Hold pump housing in soft-jaw vise. Install impeller into housing by turning clockwise
while simultaneously pushing inward as shown.
70624
Typical Pump and Impeller