INSTRUMENTATION
SERVICE MANUAL NUMBER 23
CALIBRATION CHART
Air Pressure Gauge psi
Speedometer Gauge MPH (km/Hr)
20±2 (32±1.6)
5.3
27.8
45±1 (72±1.6)
Tachometer
TESTING
1.
2.
Connect a service tachometer to engine and compare readings.
Replace if not within specifications.
Tachometer
Allowance
6000
8000
rpm
rpm
± 150 rpm
± 200 rpm
Gauge Replacement
1.
2.
3.
4.
5.
6.
7.
Disconnect battery cables from battery.
Remove wires from back of gauge.
Remove hoses (vacuum, speedometer gauge).
Disconnect light socket.
Remove holding strap and remove gauge.
Position gauge assembly in appropriate mounting hole.
Install holding strap and nuts. Tighten nuts evenly and securely.
IMPORTANT: Do not distort case or bracket by overtightening.
8.
Connect ground (BLACK) wire to ground terminal, if gauge is not mounted in metal
panel.
9.
Connect other wires to gauge as shown in SECTION 4E.
Connect hoses (vacuum, speedometer gauges).
Install gauge light socket.
10.
11.
12.
13.
Coat all terminals with Quicksilver Liquid Neoprene.
Reconnect battery cables to battery.
Page 4D-8
90-861326--1 MARCH 1999
Product Specification
Categories | Mercury MerCruiser Manuals |
---|---|
Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
Model Year | 1998, 1999, 2000, 2001 |
Download File |
|
Document File Type | |
Copyright | Attribution Non-commercial |
Just need the manual. Wrote review. Can't technically review what I haven't seen yet...