B&M 80212 Installation Instructions Download Page 2

the coupler and TIGHTEN VERY LIGHTLY!

STEP 4.  

Run a length of wire from the temperature gauge 

to the sender unit using the wire supplied with the kit.  Bare 

1/4" of the end of the wire supplied at the sender unit.  

Install an eyelet terminal supplied with the kit on the end 

of the wire and crimp it tightly.  Install the terminal onto 

the sender unit stud.  Install nut on to the stud and tighten 

securely.  Be sure the connector/wire does not touch the 

body of the sender.  Secure the wire in position so it cannot 

touch any hot engine components.  Be sure that the base 

of the sending unit is properly grounded.  A sending unit 

installed in a rubber cooling line is not properly grounded.  

Improper grounding will cause a false reading.  Install an-

other eyelet terminal at the gauge end of the temperature  

wire.  Remove the nut and lock washer from the negative 

("-") stud on the temperature gauge (see Figure 3).  Install 

the terminal onto the stud and install lock washer and nut.  

Tighten nut snugly.  

DO NOT OVER-TIGHTEN AS THIS 

COULD DISTORT BRACKET OR DAMAGE GAUGE.

STEP 5.  

Run a length of wire from the temperature gauge 

to the ignition switch or fuse block using the wire supplied 

with the kit.  Bare 1/4" of the end of the wire at the tem-

perature gauge.  Install an eyelet terminal on the end of the 

wire and crimp it tightly.  Remove the nut and lock washer 

from the positive ("+") stud on the temperature gauge (see 

Figure 3).  Install the terminal onto the stud and re-install 

lock washer and nut.

Tighten nut snugly.  

DO NOT OVER-TIGHTEN AS THIS 

COULD DISTORT BRACKET OR DAMAGE GAUGE.  

Connect other end of wire to an accessory or ignition 

circuit that is "hot" when the ignition key is on.  

DO NOT 

ALLOW "HOT" WIRE TO TOUCH THE "-" STUD ON 

THE TEMPERATURE GAUGE.

STEP 6. 

 Run a ground wire from the "GND" stud to 

chassis ground (frame or body).  See figure 3.  

DO NOT 

OVER-TIGHTEN AS THIS COULD DISTORT BRACKET 

OR DAMAGE GAUGE.

STEP 7.

  Run a length of wire from the temperature gauge 

to the dashboard instrument light wires or terminal board.  

Bare 1/4" of the end of wire at the temperature gauge.  

Install the female spade connector furnished and crimp 

tightly.  Slip connector onto gauge spade terminal (see 

Figure 3).  Secure all wires up out of the way from heat or 

any moving parts to prevent damage.

STEP 8.

  Re-connect battery cable.  Turn ignition key on.  

Gauge will read oil temperature.  Start engine and check 

T-fitting for leaks.  As transmission oil temperature warms 

up, the gauge will indicate properly.  Turn on lights to check 

operation of illumination bulb.

Parts List

Temperature Gauge

Bracket

Eyelet terminals (3)

Spade terminal

Brass washers (3)

Lock washers (4)

Nuts (3)

Coupler

Hook-up wire

Mounting screws (2)

Mounting panel

3/8 " T-fitting

5/16" T-fitting

Sender Unit (1/8" NPT)

Tool List

7/16" Wrench

1/2" Wrench

9/16" Wrench

5/8" Wrench

3/8" Socket or Nut driver

Pliers

Wire strippers

Wire Crimping Tool

Tubing cutter

Small file

Phillips Screwdriver

TROUBLE SHOOTING GUIDE

Malfunction 

  Probable 

Cause

Gauge shows no reading 

-Gauge is not hooked to power, or is not grounded properly

Gauge shows false reading 

-Sending unit no properly grounded

Reading too high 

 

-Power and ground wire reversed

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