TECHNICAL ACT|FOOD INDUSTRY · ROAD TRANSPORT|INTERNAL COMBUSTION ENGINE · CYLINDER-PISTON GROUP
IE B055ACT UNDER CONTRACT No. 10-Kh OF 07.06.2001
UAZ-3909: all cylinders brought to one level of compression, no teardown
Worn cylinders gained compression, cylinder-to-cylinder spread narrowed, the engine ran smoother. 13–65 % — compression in worn cylinders, 5.5–7.5 → 8.5–9.1 (2001).
PRODUCTTreatment by XADO Technologygel, single 36 ml charge into the engine
TEST OBJECTUAZ-3909 vehiclepetrol engine · state plate V 224 US
DOCUMENT TYPEAct under contract No. 10-Kh
signatures and stamps of the parties
signatures and stamps of the parties
Key results
↑13–65%
compression in worn cylinders,5.5–7.5 → 8.5–9.1
compression evened out across the cylinders
| EQUIPMENT | MILEAGE AT TEST START | WHAT WAS MEASURED |
|---|---|---|
| UAZ-3909, plate No. V 224 US | 35 390 km | Compression in all four cylinders — before treatment and after 1 803 km of running |
Compression by cylinder — before treatment and after 1 803 km of running
| CYLINDER | BEFORE TREATMENT | AFTER 1 803 KM | CHANGE |
|---|---|---|---|
| Cylinder 1 | 9.0 | 9.0 | no change |
| Cylinder 2 | 8.0 | 8.2 | +0.2 |
| Cylinder 3 | 7.5 | 8.5 | +1.0 |
| Cylinder 4 | 5.5 | 9.1 | +3.6 |
| Spread between cylinders | 3.5 | 0.9 | −2.6 |
The compression unit is not entered on the act form — the values are given exactly as recorded in the document.
Conclusion of the act
Before treatment the engine ran with a dip: compression in the fourth cylinder was 5.5 against 9.0 in the first, the spread between cylinders — 3.5. After a single 36 ml charge of gel and 1 803 km of normal service all four cylinders lie within 8.2–9.1, and the spread has narrowed to 0.9. This is exactly how the mechanism works: the metal-ceramic layer builds up where there is wear and does not build up where there is none — the most worn cylinder gained the most, while the cylinder with the best initial compression stayed at its previous level. Compression cannot rise above the nominal value set by the manufacturer, so bringing all cylinders to one value is the maximum achievable. In the conclusion of the act the parties recorded: “as a result of the treatment petrol consumption dropped by 10%, compression evened out, the engine began to run more smoothly, the vehicle became more responsive, and the dynamics of the vehicle improved”.
Current equivalent
- Revitalizant gel for petrol enginesPetrol engines
- Revitalizant gel for cylinder restorationEngine cylinders, deep wear
How such units are treated:
About this result:
Limits of this report: The results refer to the petrol engine of a UAZ-3909 vehicle under the operating conditions of the JSC “Krasnoarm. Khleb” fleet; on other equipment and in other duty modes the figures may differ.