Airplane Maintenance Manual
Bristell
B23-915
Chapter 72
supplement
Chapter 72 Page 14
Issue: 09.12.2021
72-20-10 Engine Cooling System
Engine cooling is combined, cylinder heads are liquid cooled, cylinders
are air cooled. Cooling circuit of cylinder heads is made as a closed
system containing the pump, expansion tank with the pressure cap,
water coolers and the overflow bottle.
Fig. 5
Engine Cooling System
Item Description
Item Description
1
Expansion tank (BRM
Aero part 71B520020N)
2
Hose (tank
–
RAD1)
3
Front water radiator
4
Hose (RAD1
–
RAD2)
5
Rear water radiator
6
Hose (RAD2
–
water pump)
7
Hose (tank
–
overflow
bottle)
8
Overflow bottle
9
Venting line
