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Engine Design
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Design
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8 cylinder, four stroke, internal combustion
V-Engine
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Crankcase
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Two-piece, light alloy cylinder/crankcase,
without liners
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Crankshaft
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Forged with 5 plain bearings
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Connecting
rods
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Stahl, gegossen oder sintergeschmiedet
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Pistons
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Cast light alloy with chrome or iron plated
bearing surfaces
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Camshaft
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Cast, running in camshaft housing without
bearing shells
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Camshaft
drive
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Toothed belt and internal chain
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Cylinder
head
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Light alloy
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Arrangement
of valves
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2 Input, 2 Output, overhead V
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Valve
timing
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2 overhead camshafts per cylinder back
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Valve
play
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Automatic (hydraulic) adjustment
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Timing
(1mm stroke, zero play)
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Intake opens
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11° after TDC
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Intake closes
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36° after BDC
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Exhaust opens
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17° before BDC
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Exhaust closes
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2° before TDC
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Engine cooling
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Closed coolant-filled system, mechanical fan
with visco-clutch (when air conditioner is installed as extra equipment,
with extra electric fan and thermal switch)
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Engine Lubrication
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Forced oil circulation system with crescent pump
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Oil
filter
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Full flow type
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Oil
pressure at 4000/min
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approx. 5 bar for oil temp., between 80 …100°C
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Oil
pressure indicators
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Indicator lamp and pressure gauge
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Oil
consumption l/1000 km
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approx. 1.5
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Exhaust System
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Twin pipes entire length
3-way catalytic converter, twin pipes in final
muffler
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Emission
control
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3-way catalytic converter, secondary air
injection
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Heater
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Warm water heater with heat exchanger and blower
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Blower
drive
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Double electric fan
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Fuel system
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LH-Jetronic
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Fuel
delivery
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1 electric fuel delivery pump
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Fuel
Grade RON
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Fuel
Consumption
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Manual/Automatic
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constant
90 km/h l/100 km
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8.7 / 8.6
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constant
120 km/h l/100 km
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10.2 / 10.5
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ECcity
cicle l/100 km 19.2
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16.7
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Electrical System
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Shielding
class
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ECE-R 10 und 72/245/EWG
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Battery
voltage V
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12
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Battery
capacitance Ah
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88 (72 as from Mod. 86)
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Alternator/output
A/W
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115/1610
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Ignition
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by EZF breakerless
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Firing
order
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1-3-7-2-6-5-4-8
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Ignition
timing
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EZK breakerless
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Spark
plugs
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Bosch WR 7 DC
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Spark
plug electrode gap mm
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0.7 + 0.1
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Power Transmission
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Engine mounted at front end, transmission
mounted at rear end, both connected by a connecting pipe – transaxle
system. Front mounted engine,
clutch, torsional elastic drive shaft to transmission running in connecting
tube, rear mounted transmission with final drive, double joint shafts, rear
wheels
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Clutch
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Single-plate dry clutch with diaphragm spring,
extended mounted on engine
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Pressure plate
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GMFZ 250
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