2
TT-1479 11/10
2. Remove and replace the seawater pump.
2.1 Remove and save the belt guard.
2.2 Remove and save the seawater pump belt. See
Figure 1.
2.3 Remove and discard the existing seawater pump,
mounting bracket, and seawater pump hardware.
DK-250000-AI
1
1. Seawater pump (344089)
2. Mounting bracket
3. Seawater pump belt
Engine-End View
3
2
Figure 1 Locator Drawing (Typical)
2.4 Mount the seawater pump (GM46936) to the new
bracket (GM53017) using 2 bolts (X-125-31) and
2 nuts (X-6210-7) as shown in Figure 2.
2.5 Mount the new bracket/pump assembly to the
engine using the hardware shown in Figure 2.
2.6 Replace the seawater pump belt. Consult the
operation manual for the belt tensioning
procedure.
2.7 Attach the pipe adapters to the seawater pump
and cut to fit the hose attached to the bottom of the
seawater pump. See Figure 2.
2.8 Replace the belt guard.
3. Restore the generator set to service.
3.1 Check that the generator master switch is in the
OFF position.
3.2 Reconnect the generator set engine starting
battery, negative (ā) lead last.
3.3 Reconnect the power to the battery charger, if
equipped.
GM59220-D
1
1. Bolt (X-125-31 qty. 2) and nut (X-6210-7 qty. 2)
2. Pipe adapter (GM58848) and 90_ connector (X-391-31)
3. Seawater pump (GM46936)
4. Pipe adapter (GM58848) and hose connector (X-582-16)
5. Screw (M931-08070-60), washer (M125A-08-80), and nut
(M6923-08-80)
6. Use existing hardware and spacers (X-400-74 qty. 2) behind
bracket as required.
7. Mounting bracket (GM53017)
8. Screw (M931-08100-60), washer (M125A-08-80) and spacer
(X-400-74). Locate spacer between bracket and gear cover.
Engine-End View
(Shown with belt guard removed.)
6
5
7
4
3
2
8
Side View
Figure 2 Seawater Pump Installation
Parts List
Seawater Pump Kit GM59333
Qty. Description Part Number
1 Pump, seawater GM46936
2 Bolt (5/16-18 x 0.875 in.) X-125-31
2 Nut, flanged (5/16-18 in.) X-6210-7
1 Bracket, mounting GM53017
2 Adapter, pipe GM58848
2 Washer, plain (8.4 mm ID x 16 mm OD) M125A-08-80
1 Nut, hex (8 mm) M6923-08-80
1 Screw, hex cap (M8 x 70 mm) M931-08070-60
1 Screw, hex cap (M8 x 100 mm) M931-08100-60
1
Connector, 90_
X-391-31
3 Spacer (0.344 ID x 0.625 OD x 0.25 in.) X-400-74
1 Connector, hose X-582-16
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