Connections Made Simple

Connection Diagram

To see the diagram in detail, right click on the diagram and open it in a new window


  • Connection diagram for a fuel injected Lycoming engine
    • Return air from the engine is pulled from the dipstick tube into the System Control Case
    • The System Control Case contains the micro-processor, the humidity and temperature sensors, and the system pump
    • If the relative humidity is greater than 10%, the system turns the pump on, pumping the engine air through the desiccant to remove the moisture
    • Dry air is fed from the desiccant container into the crankcase vent line, into the exhaust, and into the intake air plenum
    • When the engine air returned to the control case drops to 5% relative humidity, the system turns the pump off
    • During the time the pump is off, the system monitors both the relative humidity of outside air and the engine air
    • Based on this combined relative humidity, the microprocessor dynamically modifies the pump run and idle times to insure outside moisture does not re-enter the engine
  • Connections to the engine are made to easily attach to the engine ports & the exhaust

  • Various aircraft types and engines may have different connection configurations

  • Some of the aircraft and engine installations are listed below (As of Jan. 2015)

  • Additional aircraft and engines are being added as requests are received


Bonanza F33A

Cessna 172
Cessna 175
Cessna 182
Cessna 182 RG
Cessna 185
Cessna Cardinal
Cessna Cardinal RG
Cessna 210

Commander 114
Grumman Tiger
PA-18 Cub

Piper Archer
Piper Cherokee
Piper Lance

Stinson 108-3


Continental IO-360
Continental IO-520
Continental IO-550
Continental O-320
Continental O-470
Continental O-540
Continental TSIO-520R

Franklin 6A4-165-B3

Lycoming IO-360
Lycoming IO-375
Lycoming IO-390
Lycoming IO-540
Lycoming O-320
Lycoming O-360
Lycoming TIO-360
Lycoming TIO-540