FIELD SERVICE CASE|ROAD TRANSPORT|PETROL ENGINE · CYLINDER-PISTON GROUP
TEST REPORT OF M-STROY JSC · MURMANSK, 2002
VAZ-21083 engine: compression climbed, quieter and smoother running
PRODUCTXADO revitalizant gel3 tubes · treatment per the petrol engine procedure
TREATED OBJECTVAZ-21093, engine 21083petrol, 4 cylinders · registration plate s 048 vm · mileage 134 842 km
DOCUMENT TYPEReport dated 03.09.2002
with signatures and seal
with signatures and seal
Key result
↑2-2.5
compression in all four cylinders, 9.5-10 → 11.5-12.5
| EQUIPMENT | MILEAGE AT START OF TESTING | WHAT WAS MEASURED |
|---|---|---|
| VAZ-21093, engine 21083 (petrol, 4 cylinders) | 134 842 km since entry into service | Compression in each of the four cylinders |
Cylinder-by-cylinder compression — before and after treatment
| CYLINDER | BEFORE TREATMENT (134 842 KM) | AFTER (138 652 KM) | CHANGE |
|---|---|---|---|
| No. 1 | 10 | 12 | +2 |
| No. 2 | 9.5 | 11.5 | +2 |
| No. 3 | 10 | 12.5 | +2.5 |
| No. 4 | 10 | 12 | +2 |
The unit of compression is not stated in the report — the values are given exactly as recorded in the original.
What the report records
The report of M-Stroy JSC dated 03.09.2002, drawn up after the service period, records: "vibration and engine noise level decreased, throttle response improved". Compression rose in all four cylinders: 9.5-10 → 11.5-12.5, and the second cylinder, the weakest before treatment, climbed together with the rest. This is the mechanism at work: a metal-ceramic layer built up on the worn surfaces of the cylinder-piston group, sealing was restored and with it the power and the even running of the engine — precisely the drop in noise and vibration that the commission described in words. The engine had covered 134 842 km and had been neither disassembled nor repaired: the treatment was performed with three tubes of revitalizant gel on a vehicle in ordinary service. The follow-up measurement was taken after a further 3810 km of running — the result holds up under load rather than fading within the first few hundred kilometres after the product is added.
The results relate to the 21083 petrol engine of a VAZ-21093 vehicle in routine service; on other engines and under other operating conditions the figures may differ. The original report dated 03.09.2002, with signatures and seal, is published in full and available for download.
Current equivalent
- Revitalizant gel for cylinder restorationEngine cylinders, deep wear
- Revitalizant gel for petrol enginesPetrol engines
How such units are treated: