ISSPRO R8591 User Manual
Page 2

Form No. 236A (8/89) Page 2 of 2
ISSPRO Tachometer
Black wire to Ground
White wire to dash light circuit
Mounting Bracket
#10 Mounting Hardware
Red wire-Connect to Ign. Switched
+12 VDC
Mounting bracket (o
Vibration Damper
Timing Bracket
Cover Magnets with epoxy
Magnets*
Blue Side Out
Pulleys
Scrape away paint
Roughtn surface w/course sandpaper
Clean surface with alcoho
l
Existing Oil Pan Bolt
Sensor R8901-SO
Sensor Wires
1/8" - 1/4"
*Magnet Replacement Kit R8911
White wire to sensor
Black Wire to sender and
to -12 VDC ground
#4-40 x 5/8" Screw
Apply Loctite to threads
#4 Washer
Select any two opposite
Holes in Harmonic Balancer
and install Magnetic Sensors
Magnet Assy. *
Harmonic Balancer
Front of Engine
R8900-SO
Sensor Assy.
1/8" - 1/4"
Existing Front Pan Bolt
White Sensor Wires
DRAWING B
DRAWING A