26
gasoline: 1.70 < H:C < 2.10, O:C=0.0, N:C=0.0, (1.75 or 1.85 are commonly used)
methanol: H:C=4.0, O:C=1.0, N:C=0.0
ethanol: H:C=3.0, O:C=0.5, N:C=0.0
propane: H:C=2.67, O:C=0.0, N:C=0.0
methane: H:C=4.0, O:C=0.0, N:C=0.0
Maximum allowable levels of fuel "Impurities":
Lead: 0.012 gm/gal., 0.003 gm/ltr.
Phosphorous: 0.0008 gm/gal., 0.00027 gm/ltr.
Sulfur: 0.035% by weight
Do not use the O
2
sensor in a heavily-sooting or crankcase-oil-burning engine
because these conditions will shorten the life of the sensor.
Thread Size: 18mm x 1.5 mm. Lightly coat with non-lead containing antiseize
compound. The O
2
sensor's thread size is identical to that of the
exhaust gas oxygen (EGO) sensors used in current production
automobiles with 3-way exhaust catalysts.
Hex Size: 22 mm
Tightening Torque: 40
±
4 Nm, 30
±
3 ft-lbf for exhaust O
2
,
4
±
1 Nm, 3
±
1 ft-lbf for intake O
2
Pressure Sensor
Note: Must attach to engine via pressure sensor tubing only!
Do not directly attach to the engine or pressure sensor damage will result.
Diaphragm Material: Stainless steel
Maximum Pressure: 200 Psia, 1379 kPa (absolute)
Operating Temperature Range: -40 to 105 °C
Thread on Pressure Sensor: ¼” NPT
Fitting on Pressure Sensor: Swagelok SS-400-7-4 to mate with ¼” tube (USA) or
Swagelok SS-6MO-7-4 to mate with 6 mm tube (Metric)
Pressure Sensor Tubing
Note: Stainless steel end of tubing towards engine. Teflon end towards pressure sensor.