IE A039ENGINE RESTORATION REPAIR REPORT DATED 27.07.2007
ZIL 130, ZIL 43331, KAMAZ: compression evened out, smoke opacity within limits
Compression across cylinders equalized, smoke emission returned to normal, oil pressure in the lubrication system rose. 0.7–27.8 % — average compression of the ZIL petrol engines, 6.8–7.2 → 7.5–9.2 kgf/cm²; 2.1× — exhaust smoke opacity of the KAMAZ under free acceleration, 25 → 12; 14–30 % — oil pressure in the ZIL lubrication system, 1.0–3.6 → 1.3–4.1 kgf/cm² (2007).
signed and stamped
Key results
| VEHICLE | ENGINE | WHAT WAS MEASURED |
|---|---|---|
| ZIL 130, reg. no. A 510TM 97 | petrol | compression · oil pressure · CO and CH in exhaust gases |
| ZIL 43331, reg. no. N 385RT 97 | petrol | compression · oil pressure at two operating modes |
| KAMAZ, reg. no. S 716RB 99 | diesel | compression across eight cylinders · smoke opacity at two modes |
ZIL 130 and ZIL 43331 petrol engines — compression and oil pressure
| PARAMETER | ZIL 130, BEFORE → AFTER | ZIL 43331, BEFORE → AFTER |
|---|---|---|
| Average compression across cylinders, kgf/cm² | 6.8 → 7.5 | 7.2 → 9.2 |
| Oil pressure at idle, kgf/cm² | 3.2 → 4.0 | 1.5 → 1.8 |
| Oil pressure at 3000 rpm, kgf/cm² | 1.0 → 1.3 | 3.6 → 4.1 |
For the petrol engines the report gives the average compression across the cylinders. Oil pressure rose at both operating modes and on both vehicles.
KAMAZ diesel — compression by cylinder
| CYLINDER | BEFORE | AFTER |
|---|---|---|
| No. 1 | 13.3 | 15 |
| No. 2 | 14 | 16 |
| No. 3 | 15 | 15.1 |
| No. 4 | 15 | 15.3 |
| No. 5 | 14 | 16 |
| No. 6 | 15 | 16 |
| No. 7 | 15.1 | 16 |
| No. 8 | 15.3 | 16 |
Compression in kgf/cm². A gain was obtained on all eight cylinders, most of all on the initially worst ones: the spread across the engine narrowed by half.
KAMAZ diesel — exhaust smoke opacity
| MEASUREMENT MODE | BEFORE | AFTER | LIMIT PER THE REPORT |
|---|---|---|---|
| Idle | 45 | 30 | 40 |
| Free acceleration | 25 | 12 | 15 |
The permissible values are quoted in the report itself: before treatment the engine exceeded them at both modes, after treatment it met both.
ZIL 130 — exhaust gas toxicity
| PARAMETER | MODE | BEFORE | AFTER |
|---|---|---|---|
| CO | idle | 0.9 | 0.6 |
| CO | 3000 rpm | 0.3 | 0.1 |
| CH | idle | 1700 | 1200 |
| CH | 3000 rpm | 700 | 400 |
A reduction was recorded for both components and at both engine operating modes.
Conclusion of the company commission
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 engines of the ZIL 130, ZIL 43331 and KAMAZ vehicles of the OJSC “Spetsdormekhanizatsiya No. 2” fleet, treated in May–July 2007; on other machinery and under different operating conditions the figures may differ.