90-823225--1 10965E-146 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
Throttle Body Injection
Repair Procedures
!
WARNING
Electrical, ignition and fuel system components
on your MerCruiser are designed and manufac-
tured to comply with U.S Coast Guard Rules and
Regulations to minimize risks of fire and explo-
sion. Use of replacement electrical, ignition or
fuel system components, which do not comply
with these rules and regulations, could result in
a fire or explosion hazard and should be avoided.
Special Tools
Description Part Number
Fuel Pressure Gauge 91-168850A1
Lubricants/Sealants/
Adhesives
Description Part Number
Loctite 8831 92-823089-1
Loctite 262
Loctite 242
Torque Specifications
Fastener Location Lb. In. Lb. Ft. N•m
Flame Arrestor To
Throttle Body
50 6
Throttle Body To
Adapter
Adapter To Intake
Manifold
Intake Manifold To
Heads
25 34
VST Cover To Body 6 8
Spark Plugs 11 15
VST To Throttle Body 23 31
Sensors And Plugs To
Thermostat Housing
Hand Tight Plus 2-1/2
Turns Maximum
Knock Sensor 14 19
TP Sensor 20 2
IAC Valve 13 18
Distributor Hold-Down
Clamp
30 40
MAP Sensor 53 6
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