Extra 300/SC, Maintenance Manual

Page: 216 / 250

CHAPTER 77
PAGE 5
MAINTENANCE MANUAL EXTRA 300SC
PAGE DATE: 12. February 2019
77-10-00 POWER
77-10-10 RPM
Engine speed data in the EXTRA 300SC is obtained from the
ignition switch. The tachometer is located in the rear instru-
ment panel and requires electrical supply bus voltage.
77-10-11 Tachometer
Removal/Installation
Refer to Chapter 31.
77-10-20 Manifold Pressure (MAP)
The manifold pressure sense line is connected to the air inlet
of cylinder no. 5 (rear right-hand), refer to Figure 1. It is a
wet line consisting of two parts divided by the firewall.
To protect the instrument from fuel vapor a sintered bronze
filter is placed in the hose connection to the MAP gauge as
outlined in Figure 2a.
Filter
Sense line
MAP Gauge
Figure 2a Sintered Bronze Filter Location (MAP gauge)
If the optional MVP-50 System is installed a sintered bronze
filter (in an other shape) is placed in the MAP line bulkhead
fitting located on the firewall as outlined in Figure 2b (also
refer to Figure 5):