Fuel Filter Cleaning; Fuel And Lubrication System Leakage Check; Crankcase Ventilation Check; Compression Check - LIMBACH L 2000 EA Operating And Maintenance Manual

Attach top of the fuel pump and tighten screws.
Reassemble fuel hoses with new gaskets and
sealing rings. Tighten hollow bolts and secure
with safety wire.
Open fuel valve.
Perform test run and check for leaks.
8.8

Fuel Filter cleaning

Draining and cleaning of fuel filter.
Refer to flight and maintenance manual of aircraft manufacturer.
8.9

Fuel and Lubrication System leakage check

Check all hoses, hose connections, fittings, related equipment and engine casing joints for leaks,
proper attachment, installation and replacement periods.

8.10 Crankcase Ventilation Check

Check visually for damages and clean breather line as necessary. Check suitability and installation
of breather line - it has to be stable at engine operating temperatures (danger of buckling) and must
be installed properly (no bucklings, no reduction in cross-sectional area, no suction effects at the end of
the line).

8.11 Compression Check

Compression checks should be performed when the engine is "warm to touch".
Remove spark plugs.
Measure compression by means of a compression pressure recorder.
Perform measurement with throttle full open. Record compression pressure at starting
RPM for every cylinder until the recorder doesn't show any more pressure rise.
Wear limit: 6 bar / 87 psi.
Permitted pressure difference: 2 bar / 29 psi

8.12 Check and Setting of Valve Clearance

Valve clearance must be checked or set only at cold engine (ambient temperature).
Caution:
Disconnect spark plug connectors before performing any work on the engine.
Unscrew connectors on shielded spark plugs.
Edition: 01.03.2016
Operating Manual L 2000
Page: 32/48