Impco Part Number CA55M-756L Is A 118 CFM (59.0 L/S) Dual Fuel Mixer
IMPCO CA55-256L Carburetor specifications:
Impco part number CA55M-756L is a 118 CFM (59.0 L/s) dual fuel mixer, suitable for engines from 1.5 to 73 hp (1 to 54 kW). The moveable air valve assembly optimizes air flow for LPG Vapor or Natural Gas in gasoline dual fuel applications. The flow through design allows mounting in the inlet air stream.
The idle air fuel mixture is best adjusted only with a engine CO exhaust analyzer and the mixture should be adjusted to 0.30 to 0.70 percent carbon monoxide.
Alternate Method:
* Adjust idle to 400-500 rpm
* Turn idle air screw out until engine starts to run rough.
* Turn idle air screw in approximately ¼ turn to ½ turn or until engine smoothes out.
DESCRIPTION
| SPECIFICATIONS |
| Fuel Type | LPG Vapor or Natural Gas |
| Inlet Pressure | -1.5” w.c. (-0.37 kPa) |
| Operating Temperature Range | -40ºF to +250ºF (-40ºC to 121ºC) |
| Mounting Position | Any |
| Diaphragm Material | N/A |
| HP/kW Rating | Up to 75 hp (55.9 kW) @ 118 CFM (55.7 L/s) and 2.0” Hg manifold depression |
The idle air fuel mixture is best adjusted only with a engine CO exhaust analyzer and the mixture should be adjusted to 0.30 to 0.70 percent carbon monoxide.
Alternate Method:
* Adjust idle to 400-500 rpm
* Turn idle air screw out until engine starts to run rough.
* Turn idle air screw in approximately ¼ turn to ½ turn or until engine smoothes out.
