ISSPRO R8907 User Manual
Page 2
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Form No. 233B (2/4/03Rev. B) Page 2 of 2
Magnet Replacement Kit: R8911
INSTALLATION DIAGRAM R8503 2 1/16" Tachometer using
R8907 Sensor kit for 5.7 Liter GMC diesel engine.
*
EXISTING FRONT OIL PAN BOLT.
SENSOR WIRES
FRONT OF ENGINE
SWITCHED +12 VDC.
RED WIRE: CONNECT TO IGNITION
WHITE WIRE TO SENSOR
MOUNTING BRACKET
ISSPRO R8503 TACHOMETER
3 WIRE CABLE
ONE WIRE TO GROUND
OTHER WIRE TO DASH LIGHT CIRCUIT
MOUNTING BRACKET
*
SENSOR
ASSY
(Optional)
BLACK WIRE TO SENSOR
AND TO GROUND.
PULLEYS
**
MOUNTING HARDWARE
SCRAPE AWAY PAINT.
CLEAN SURFACE WITH ALCOHOL.
ROUGHEN SURFACE WITH COARSE SANDPAPER.
TIMING BRACKET
R8911 MAGNETS (Blue Side Out)
1/8"-1/4"
#20 AWG (or larger)
EXTENSION WIRES
(Not Furnished)
(length to suit).
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