AutoGyro MTOsport, Maintenance Manual

Page: 58 / 191

Manufacturer
Maintenance Manual
AutoGyro
MTOsport
MMM-MT-C_14-11-19 Part C
– System Description Section (Ch. 21 – 90)
Page 20 of 22
CHAPTER 72 TO 74 - ENGINE RELATED
For the (core) engine refer to the engine
manufacturer’s documentation in its latest revision.
Concerning fuel system (Filter, Pumps, Shut-off valve) see CHAPTER 28 .
Engine cowlings are described in CHAPTER 52 . For removal and installation see the dedicated Job
Card in Part E of this manual.
CHAPTER 75 - AIR / ENGINE COOLING
Engine cooling is provided by air cooled cylinders and liquid cooled cylinder heads. Therefore, cylinder
head temperature (CHT) indication in the cockpit corresponds to water temperature. The water cooling
system comprises of engine driven pump, one or two radiators, expansion tank with radiator cap,
transparent overflow bottle with screw cap and vent bore, and hoses.
A single radiator is mounted on rubber isolators and brackets just in front of the propeller. As an
option, two radiators may be fitted either side of the enclosure behind air scoops. Hoses from/to the
radiator go to the engine water pump and return. Hot water to the carburettor heat jackets is provided
via T-pieces.
MTOsport before Serial Number M01150 are not equipped with a thermostat in the water cooling
system initially. This can lead to a long warm up time, and cool running when lightly loaded in cold
operating conditions. If required the radiator may be blanked off either side with a length of duct tape.
Ensure the surface is clean first, and wrap the tape around the radiator such that the ends overlap at
least 50mm. Monitor all engine temperatures closely after having the coolers blanked off and modify, if
necessary. Remove when the operating conditions allow.
For the relevant checking and replenishing procedures, refer to engine manufacturer’s manual.
Oil cooling is described in CHAPTER 79 .