Heat Exchanger (continued)
Using a 7/16" open ended wrench, loosen the nut at the Exhaust Sensor Fitting and remove the Exhaust Sensor
from the Exhaust Port.
Figure 5-4.3. Heat Exchanger Assembly, Exhaust Sensor Fitting Location
DO NOT set the Top Housing on the Secondary Air Duct Hose. Place the Top
Housing on it's side with the fuel inlet facing upwards. Set the Heat Exchanger so
that the Vent Sensor is facing upwards.
Using a #2 cross-tip screwdriver, remove the four (4) screws which hold the Top Housing to the Heat Exchanger.
Lift the Top Housing away from the Heat Exchanger.
Gently pry open the channel on the side of the Heat Exchanger and remove the Vent Sensor wire.
Using a #2 Cross-tip screwdriver, remove the three (3) screws from the Vent Sensor. Gently pull the Vent
Sensor away from the Heat Exchanger.