CYLINDER LEAKAGE TESTER
The leakage tester serves for the diagnostics of engine defects, e.g. of the inlet/exhaust valves, the
pistons/piston rings and the cylinder head/cylinder head gaskets.
The leakage tester detects and localizes engine defects quickly.
CONSTRUCTION
A compressed air connection
B pressure regulator
C gauge
D leakage test gauge
E connector for adapter
F adapter for injectors, spark plugs or glow plug
USE
1. Warm up engine, apply vehicle's hand brake
2. The piston of the cylinder in question has to be adjusted at TDC (top dead center)
3. Dismantle spark plug/injection nozzle
4. IMPORTANT: Before go to the next step, turning the pressure regulator (B) completely to the left.
Failure can damage to the tester.
5. Connect tester to compressed air outlet (A).
6. The input pressure of the compressed air must be between 6 & 12 bar.
7. Turn pressure regulator (B) until the instrument's pointer has reached 0%
8. Fix pressure regulator (B); (press down; initial pressure has to be the same for all cylinder)
9. Screw testing adapter (C) into the engine's spark plug thread
10. Connect testing adapter (C) to tester (outlet)
11. Read pressure loss;
- Pointer exceeds 23% - the engine is defect.
- Pointer remains within the green area (0-23%) pressure loss is acceptable.
The leak can be spotted by listening to the noise of the escaping air or by feeling the air stream
Location of places of noise:
• intake manifold
• exhaust manifold
• oil filler neck
• cooling liquid filler neck
CAUTION : Risk of burning on warmed-up engines – do not touch any of hot parts.
•
Differences between the individual cylinder up to two graduation lines (= 4% pressure loss) are
acceptable.
•
The leakage on engines which have run less than 5000 kilometers may be higher, because the
cylinder, the piston and the piston rings have not yet reached their full smoothness.
•
Necessary testing pressure: 6 to 12 bar.
BGS technic KG
Bandwirkerstr. 3
D-42929 Wermelskirchen
Defecting
• inlet valve defect
• exhaust valve defect
• piston/piston ring defect
• cylinder head gasket defect
Tel.: 02196 720480
Fax.: 02196 7204820
www.bgstechnic.com
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