In 1938 production starts with the 6 cylinder Maybach NL 38 TUKR. From 1940 on that is the HL 42 TUKRM
HL = Hochleistung (top achievement)
NL = Normalleistung (normal achievement)
TU = Tiefes Unterteil (Low bottom part)
K = Kupplungsgehäuse (Clutch housing)
T = Trockensumpf
M = Schnapper Magnetzünder
38 = 3817 ccm = 3.8 liter
42 = 4199 ccm = 4.2 liter
2 views of the HL 42 TUKRM from the manual.
Factory cut through illustration
|6-cylinder, gasoline, cast iron|
|Displacement:||4199 cc = 4.2 liter|
|Bore/Stroke:||90 x 100|
|Output:||100 Hp at 2800 rpm|
|Valves:||Overhead, 2 per cylinder, hanging|
|Valveshafed:||Single, on top with 8 mounts|
|Cooling:||Water, with pump, dual ventilator and thermostat. 26 liter|
|Carburetor:||1 Solex 40 JFF II carburetor (with 4 floats)|
|Fuel pump:||Bosch EJD 1.8/12|
|Starter engine:||Bosch RKCN 300/12-1300 (300 watt, 12 volt)|
|Battery:||1 or 2 75 Ah batteries. (Radio and special vehicles receive 2. The gasoline-tank is adjusted for the second)|
|Air filter:||In desert operation the air-filter and airflow are changed|
Peaking through above the left front wheel (some armor missing) a derelict survivor at an exhibition in Bastogne reveals a part of the engine.
Standing on top of the same survivor looking down (and to the back) a part of the "firewall" is visible.
Left the Dutch survivor (now in the museum in Best) photographed by Werner Stubner in the time that it was in store at the Armamentarium in Delft. Dual fans on the radiator. Right the same place as pictured in the manual
The "firewall" seen from the right front. The chassis was used for instruction on mechanical construction by the Dutch army.
Left the stripped firewal from the "Best" surviver in it's Delft days. Right the left part of the same spot from the manual.