Bobcat 741 - Page 200

CHECKS AND ADJUSTMENTS (Cont'd)
Ignition System Tests (Cont'd)
Battery To Coil Voltmeter Test (Cont'd)
If the voltmeter reading is more than 6.9 volts, check the
following:
The battery and cables for loose connections or
corrosion.
The primary insulation, broken wires and
loose or
corroded connections.
If the voltmeter reading is less than 4.5 volts, the ignition
resistor must
be replaced.
Check the start relay to the ignition switch for damage.
Starting
Ignition Circuit Voltmeter Test
Connect the
voltmeter wires. (See Page 78-3 .)
Disconnect and ground the coil to distributor high voltage
wire at the distributor.
With the ignition switch in the
OFF position turn the
engine with
an auxiliary starter switch while reading the
voltage loss.
If the voltage loss is 0.4 volt or less, the starting ignition
circuit
is good.
If the voltage loss is more than 0.4 volts clean and tighten
8
Stationary
Contact
Breaker Arm
Contact
the connections
in the circuit or make replacement of the C
wiring as needed.
Breaker
Point Gap Adjustment
Turn the engine over until the points are fully opened.
Put the correct thickness blade of a clean feeler gauge
between the breaker points
[A] & [B]. Make adjustment
of the points to correct gap and tighten the screws.
Clean the cam area, then put a small amount of cam
lubricant on the cam when new points are installed. Do
not use engine oil as a lubricant.
Ignition Timing
When
installing distributor (Brown Cap) do the following:
Align
the timing marks as shown [0].
Install the distributor and rotor marks (Item 1) [C] and
housing marks
(Item 2) [C] in alignment.
Timing Marks Location
The timing mark
locations are shown in [0].
-7B-7-
D
z
o
fi
~
o
a:
TIMING MARK SKETCH
BTOC
TOC
12
8
4
o
.- FRONT
VIEWED FROM LEFT SIDE OF ENGINE PI-02146
741,742,743, 7430S Bobcat Loader
Service
Manual