KAMAZ-5511: worn cylinders regained metal without engine teardown

Bores of the treated cylinders tightened, metal built up on the liner walls, the engine was never opened. Russia · 2002. 0.04-0.07 mm — bore of cylinder No. 8.

OJSC Stavropolproektstroy, plant commission: lead mechanic V. D. Shagimardanov, garage manager A. T. Smagin, repair mechanic A. V. Bulgakov · report approved by chief engineer V. A. Davydov

Stavropol Krai, Russia · treatment 01.07.2002 · check measurement 09.07.2002

PRODUCTXADO RVSadded to a running engine, without teardown or removal of the unit

TEST OBJECTKAMAZ-5511, reg. No. s832sr26diesel engine No. 404495 · cylinders No. 1 and No. 8 treated

DOCUMENT TYPETechnical report of the commission
of OJSC Stavropolproektstroy

Key result

↓0.04-0.07mm

bore of cylinder No. 8, 120.00-120.05 → 119.94-120.01 mm

EQUIPMENT	SERVICE BETWEEN MEASUREMENTS	WHAT WAS MEASURED
KAMAZ-5511 dump truck<br/>reg. No. s832sr26, diesel engine No. 404495	230 km over 8 days of regular service	Bore of cylinders No. 1 and No. 8: three sections along the liner height, two mutually perpendicular diameters in each (axes A and B)

Bore of the treated cylinders: commission measurements of 01.07 and 09.07.2002

SECTION, AXIS	CYLINDER No. 1, mm	REDUCTION	CYLINDER No. 8, mm	REDUCTION
I, axis A	120.01 → 120.01	—	120.00 → 119.99	0.01 mm
I, axis B	120.10 → 120.07	0.03 mm	120.05 → 120.01	0.04 mm
II, axis A	120.01 → 119.99	0.02 mm	120.01 → 119.96	0.05 mm
II, axis B	120.10 → 120.08	0.02 mm	120.05 → 120.01	0.04 mm
III, axis A	120.01 → 119.99	0.02 mm	120.01 → 119.94	0.07 mm
III, axis B	120.09 → 120.08	0.01 mm	120.05 → 120.01	0.04 mm

A reduction of the inner diameter means metal build-up on the liner wall. Before treatment the wear was uneven around the circumference: the bore along axis B was larger than along axis A.

Commission conclusions

The engine was neither disassembled nor removed: the compound was added to a running engine, and throughout all eight days between the measurements the truck stayed in regular service. The commission of OJSC Stavropolproektstroy recorded the following: I. The experiment carried out proves the build-up effect on worn parts of friction pairs after treatment by the XADO technology. II. The commission recommends applying the XADO technology to the treatment of units of machines and mechanisms of OJSC Stavropolproektstroy in order to restore worn units, protect them against wear, extend service life and save energy carriers, as well as to reduce spare parts costs. III. The commission finds it advisable to include the treatment of the mechanisms and machines of OJSC Stavropolproektstroy in the system of scheduled preventive maintenance.

The results refer to the diesel cylinders of a KAMAZ-5511 truck treated without engine teardown; on other engines and at other running hours the figures may differ. RVS is an obsolete XADO designation for the zero-generation compounds; the current product generation is revitalizants. The original technical report of 09.07.2002 is published in full and available for download.

Current equivalent

Revitalizant gel for diesel enginesDiesel engines
Revitalizant gel for cylinder restorationEngine cylinders, deep wear

How such units are treated: Diesel engine Cylinder-piston group

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