Opel 1900 1973 Service Manual page 86

DESCRIPTION AND OPERATION:
DIAGNOSIS:
Temperature and Fuel Gauge
System - Opel 1900 - Manta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Gauge - GT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND ADJUSTMENTS:
MAJOR REPAIR:
Opel 1900 - Manta
Voltage Stabilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Clock or Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Indicator or Fuel Gauge . . . . . . . . . . . . . . . . . . . .
Temperature Sending Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Sending Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GT
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Indicator and Fuel Gauge Dash, Unit
Electric Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ammeter and Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS:
DIAGNOSIS
DIAGNOSIS (OPEL 1900, MANTA)
Condition
Temperature and gas gauge
GAUGES
CONTENTS
Subject
Possible Cause
1. Blown fuse
2. Defective voltage
stabilizer
Page No.
1 l-65
1 l-67
1 l-67
1 l-68
1 l-68
1 l-69
1 l-69
1 l-69
1 l-70
1 l-70
1 l-70
1 l-70
1 l-71
1 l-71
Correction
1. Replace fuse. If new fuse
blows, repair short.
1. Install 40 ohm resistors
between ground & connectors
(disconnect from units)
of temperature sending imit
and gas gauge tank unit. If
both dash units do not move
to full scale (tolerance -
one pointer width of either
side of full scale reading)
and the distance of movement
on the scale is the same,,
replace the voltage stabdner.