TT-1617 12/13
3
3.
Remove the high exhaust temperature
switch.
3.1 Cut lead #37 from the existing high exhaust
temperature switch. See Figure 6 for location of
the switch. Tape the end of the lead with electrical
tape and tuck the lead into the split loom of the
wiring harness.
1
GM58164-B
1. High exhaust temperature switch (249872) and hex cap bolt
(X-6238-2)
2. Catalyst
2
Figure 6
Exhaust Temperature Switch Location
3.2 Use a 15 mm open end wrench to remove the hex
cap bolt and temperature switch and save the
temperature switch for the possible return to
Kohler Power Systems. Discard the hex cap bolt
(X-6238-2).
4.
Remove, replace, and relocate the
seawater pressure switch.
4.1 Disconnect leads N5 and 87 from the seawater
pressure switch.
Note:
Place rags underneath the seawater
pressure switch to absorb a small amount
of water.
4.2 Use a 13 mm open end wrench to remove the
seawater pressure switch and 45
_
fitting and save
for the possible return to Kohler Power Systems.
1
GM53065-B
1. Seawater pressure switch
Top View of Exhaust Manifold
Figure 7
Current Location of Seawater Pressure
Switch
4.3 Use a 3/8 in. open end wrench to remove the pipe
plug and install the new seawater pressure switch
(GM54744) using a 7/16 in. open end wrench at
the location shown in Figure 8. Save the pipe plug.
Note:
Use Loctite
R
565 on the threads of the new
seawater pressure switch and the existing
pipe plug.
4.4 Install the pipe plug (removed in step 4.3) at the
former location of the seawater pressure switch.
See Figure 8.
1
GM53065-
1. Seawater pressure switch (GM54744)
2. Pipe plug (X-75-4)
Side View of Exhaust Manifold
2
Figure 8
New Location of Seawater Pressure
Switch and Pipe Plug
5.
Install the wiring harness.
Note: For Sound Shielded Units:
Ensure that
the sound shield panel that contains the
ADC II controller is loosened enough to
route the new wiring harness (GM90471).
The 5/16 in. x 1.75 in. bolt may need to be
removed and the controller harness may
need to be disconnected for ease of
access.
Loctite
R
is a registered trademark of Loctite Corporation.