IE A068PROTOCOL NO. 0208 OF 13 AUGUST 2002
UAZ-69 engine and gearbox: compression up, exhaust cleaner, gears shift more easily
Compression increased in all cylinders, exhaust became cleaner, gears started shifting more easily. 8 % — compression across the cylinders, 7.5–8.0 → 8.0–9.0 atm; 43–50 % — exhaust toxicity, CO 6.58 → 3.75 % and CH 375 → 187 ppm (2002).
with signatures and stamps
Key results
| MACHINE AND UNIT | MILEAGE AT TEST START | WHAT WAS MEASURED |
|---|---|---|
| UAZ-69, reg. no. RV 1344 VV — engine, 4 cylinders | 126,000 km | Compression in each of the four cylinders; CO and CH in the exhaust gases |
| Same vehicle — gearbox | 126,000 km | In-service assessment: noise, gear engagement |
Engine compression by cylinder
| CYLINDER | BEFORE TREATMENT, ATM | AFTER, ATM | GAIN, ATM |
|---|---|---|---|
| I | 7.5 | 8.0 | +0.5 |
| II | 7.5 | 8.0 | +0.5 |
| III | 8.0 | 9.0 | +1.0 |
| IV | 8.0 | 9.0 | +1.0 |
Compression rose in all four cylinders. The gain is capped by the engine's factory nominal: compression cannot rise above it.
Exhaust gas toxicity
| PARAMETER | BEFORE TREATMENT | AFTER | CHANGE |
|---|---|---|---|
| CO, % in exhaust | 6.58 % | 3.75 % | −43 % |
| CH, ppm | 375 ppm | 187 ppm | −50 % |
The exhaust gas measurement was carried out and certified with its own stamp by an outside contractor — “FORD” auto service, B. Yordanov.
Protocol conclusions
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 relate to the petrol engine and the gearbox of a UAZ-69 vehicle with 126,000 km on the odometer, operated by Elektrorazpredelenie EAD, Plovdiv; on other machinery and under other duty cycles the figures may differ. The original of protocol no.