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Service-manual For the aircraft engines solo 2 625 01 solo 2 625 02 solo 2 625 02i solo Kleinmotoren GmbH Stuttgarter Str. 41 D 71069 Sindelfingen Tel.: (0049) 7031 - 3010 Fax.: (0049) 7031 – 301195 Edition 4 dated February 26...
2 625 01 Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i Table of contents General hints and description of the engines ............2 Necessary tools ......................4 Disassembly of the engine ..................5 Check of the individual parts ..................6 Cylinder heads ......................
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KLEINMOTOREN 2 625 02 GMBH 2 625 02 i Description of the engines The aircraft engines 2625 01, 2625 02 and 2625 02i are based on the same engine block and differ only by different carburetors or at the engine 2 625 02i by the use of an electronic fuel injection.
Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i sensor measuring the intake air temperature. In the ECU there is a pressure sensor measuring the atmospheric pressure. • A double throttle valve assembly and one injection valve each, which are controlled by the ECU.
Loosen hub at the front end of the crankshaft Socket wrench 19 mm and pull off with the suitable puller. Puller SOLO No. 00 80 529 Loosen nuts at the cylinder head. Socket wrench 13 mm Lift cylinder head.
Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4 Check of the individual parts 4.1 Cylinder heads • Clean the inside part of the cylinder head from coal. Fuel can dissolute rests of burnt oil. Heavy oil-carbon deposit can be removed with a steel brush.
Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.4 Crankshaft The Crankshaft can be disassembled only by the manufacturer. The main bearings at the drive side or the ignition side (roller bearings) can be replaced. To conduct this, the inner rings must be grinded carefully on one spot until only 0.3 mm of wall thickness is left.
2 625 01 Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.5.2 Troubleshooting ignition systems • No spark on one Ignition circuit o Wire defect on one wire from the pick-ups or at a wire to the ignition coil.
Baureihe SOLO 2 625 01 Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.5.3 Wire diagrams Iskra and ducati ignition systems • Iskra ignition system • Ducati ignition system edition 4 dated 26.02.2018 Seite 9...
KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.6 Engine Control Unit (ECU) The following wire diagram shows the connection between the ECU and the various components of the engine. The functions of the ECU where described in chapter 1.
MIKUNI BN 38 - 34 - 55 Diaphragm carburetor without fuel-pump The engine 2 625 01 has one carburetor. The engine 2 625 02 has two carburetors. 4.7.1 Specialties MIKUNI BN 38 The carburetor has an integrated main jet which controls about 75% of the fuel at wide open throttle.
KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.7.2 Specialties MIKUNI BN 38-34-55 The carburetor has an exchangeable main-jet marked for 2 625 01 by 127.5 (engine 2625 02 has 117.5). This jet controls 75% of the fuel at wide open throttle.
EGT is between 630 and 640 °C. Don’t adjust too early because you then could set the carburetor too lean. Engine 2 625 02 with two carburettors • The carburetor adjustment is almost identical for both types.
2 625 01 Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.7.4 Troubleshooting at the carburettors • Setting too lean Lean setting can be detected if the engine does not accelerate properly or if the EGT is too high.
Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i 4.8 Trouble shooting at the fuel injection system (only 2625 02 i) 4.8.1 Engine does not start No fuel Check the fuel lines and the function of the fuel pump.
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2 625 01 Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i The status window shows the status of the sensors, the injection time and the ignition angle during engine operation. Check the following indications: No. Of rev. errors: If the number of rev.
Assemble intake manifold on engine 2 625 01 Torque wrench or exhaust manifold on engine 2 625 02 with (20 Nm) gaskets in order to get cylinders in line. Then tighten the 4 nuts on each cylinder.
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SOLO 2 625 01 Service Manual KLEINMOTOREN 2 625 02 GMBH 2 625 02 i should not exceed 0.1 bars per minute. Assemble stator of the ignition system. Secure Torque wrench (12 Nm) all bolts with Loctite. Loctite 270 Assemble flywheel. Clean cone and flywheel Torque wrench (80 Nm) with thinner first.
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