GH F33 BDA
1.3.1 CHT (Cylinder head temperature)
Cylinder head temperature (see Table 1.5-1) is measured at fitting beneath the spark plug.
Hereby a ring-shaped thermocouple element is screwed in beneath the spark plug. The
positioning of the thermocouple element is very important. The connecting cable of the
thermocouple element should be conducted upwards in the way that the cooling air does not
blow at the connection from the cable to the ring-shaped measure element.
Only calibrated measuring equipments should be used. It has to be concerned that
subsequently lengthened measuring cable, between thermocouple element and measure
instrument, could falsify measured value.
Temperature measure instruments with subsequently lengthened measuring cable
should be calibrated once more under mounting conditions.
Defective or not correct working thermocouple elements, temperature indication and
measuring cable has to be removed immediately.
The maximum allowed cylinder head temperatures indicated by Göbler-Hirthmotoren
referring to the mentioned mounting position as well as to the calibrated measure
element in this range of temperature.
1.3.2 EGT (Exhaust gas temperature)
The exhaust gas temperature (see Table 1.5-1) is measured at outlet manifold. Hereby a rod-
shaped thermocouple element is clamped into a special sealed screwed joint. The positioning
of the thermocouple element is very important. The thermocouple element should be inserted
into the outlet manifold as deep as the peak of the thermocouple element is in the middle of
the outlet pipe/ tube. The gap between piston rim at the outlet and the measuring peak runs to
110 mm.
Only calibrated measuring equipments should be used. It has to be concerned that
subsequently lengthened measuring cable, between thermocouple element and measure
instrument, could falsify measured value.
Temperature measure instruments with subsequently lengthened measuring cable
should be calibrated once more under mounting conditions.
Defective or not correct working thermocouple elements, temperature indication and
measuring cable has to be removed immediately.
The maximum allowed exhaust gas temperatures by Göbler-Hirthmotoren referring to
the mentioned mounting position as well as to the calibrated measure element in this
range of temperature.
1.3.3 Fuel pressure
(see table 1.5-1)
1.4 Identification plate
The identification plate is attached on ignition side at the upper side of the intermediate case.
In any case of problems with your engine, then apply to Göbler Hirthmotoren KG with details
of type and serial number of engine.
Stand: 02.02.05 DOC_F33_B_E_0.01
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