# ZIL 130, ZIL 43331, KAMAZ engines — OJSC «Spetsdormekhanizatsiya No. 2»

**IE A039**  
OJSC «Spetsdormekhanizatsiya No. 2» · Russia · 2007

Compression across cylinders equalized, smoke emission returned to normal, oil pressure in the lubrication system rose. Russia · 2007.

## Measured

- compression evened out across the cylinders — ****
- average compression of the ZIL petrol engines, 6.8-7.2 → 7.5-9.2 kgf/cm² — **0.7-27.8 %**
- exhaust smoke opacity of the KAMAZ under free acceleration, 25 → 12 — **2.1×**
- oil pressure in the ZIL lubrication system, 1.0-3.6 → 1.3-4.1 kgf/cm² — **14-30 %**

## Conclusion

Compression across cylinders equalized, smoke emission returned to normal, oil pressure in the lubrication system rose

Page: https://industry.xado.com/case/akt_oao_spetsdormekhanizatsiia_o2_avtomobili_zil_130_zil_433
PDF report: https://industry.xado.com/pdf/TIER%20A/Spetsdormekh2/vehicles-ZIL-130-ZIL-43331-KamAZ/IE-A039_XADO_Spetsdormekh2_vehicles-ZIL-130-ZIL-43331-KamAZ_EN.pdf
Original scan: https://industry.xado.com/scans/akt_oao_spetsdormekhanizatsiia_o2_avtomobili_zil_130_zil_433.pdf