23) Renewal Of Rubber Parts; 24)Overhaul - Rotax 914 F Maintenance Manual

12.3.23) Renewal of rubber parts

Renew rubber parts acording to Maintenance check list.
All rubber hoses are subject to renewal. Affected are the venting ho ses of the
carbs, air pressure hoses to fuel pressure control and pressure sensor, hoses
on compensating tube as well as all rubber hoses of the cooling system.
Renewal of the diaphragm on both carburetors, see chapter 13.1).

12.3.24)Overhaul

The overhaul of engine is necessary after a certain engine run time or
period of time from the first starting of engine (whichever comes first).
Type description
1)
An extension of the time between overhaul is possible and regulated
through Service Bulletins (SB) for the respective engine type. Already done
extensions can be taken out of the engine log book and/or the release
certificate. Necessary modifications must be done by an authorized mainte-
nance facility. See chapter 11.3)
For the overhaul remove engine from aircraft and send it in clean and
preserved condition to an authorized overhaul facility.
If the engine is shipped to an overhaul facility, include the following in the
shipment:
-
-
-
-
-
-
At receipt of an engine for overhaul a test run is conducted, followed by tear-
down inspection with recording of findings, and necessary repair work carried
out afterwards.
The overhauled engine is subject to a running-in period and a final perform-
ance check.
The overhaul is indicated on the name plate. Each overhauled engine is
accompanied by the report of engine repair with filled-in data sheets.
The overhaul of an engine is registered in the Overhaul Manual.
Modification no.
- 5 -
Engine engines affected
engine s/n
914 F up to and incl. 4,420.313
914 F from 4,420.314
engine log book
service record (life act) of the engine
all parts of equipment like carburetors, filter, intake silencer, ignition unit,
vacuum pump, hydraulic governor, engine frame, fuel pumps, oil tank,
external alternator
indication of total time of operation
statements to the aircraft used
useful notes and observations regarding the engine.
Reference
TBO
Time Between Overhaul
1000 h or 10 years,
whichever comes first
1200 h or 12 years,
whichever comes first
Main
914 F 2003 03 01
05615
deliverables SB for
extension of the TBO
SB-914-027
(1000 h to 1200 h
or 12 years)
none
Date
Page
111