Page 0
Electronic Control System: Installation Manual for BY Series Engines with Classic Controls
Appendix B: Gauge Measurements
3” Master Tachometer/Slave Speedometer (Dimensions in inches)
U.S. to Metric
0.54 inches = 13.7mm
2.579 inches = 65.5mm
3.79 inches = 96.3mm
Analog Gauges
Analog Gauge Style
A
B
C
D
” All Electrical Gauges
.
.1/.
.0
.
” Mechanical Pressure Gauges
.
.1..
.0
.
” Electric Tachometers
.
.1/.
.
.
” -N-1
.
.1/.
.
.
3” Electric Tach/Hourmeters
3.78
3.41/3.44
3.88
.58
3” Marine Pitot-type Speedos
3.78
3.41/3.44
2.70
.58
A
D
B
C