Inspect the cylinder – there should be no cracks or nicks; examine the working surface of plates valve, the working end, the valve stem, the nose rocker, valve seat, the state opening of guide bush. Bully axles and bushings rockers, valve guides are not allowed. In the case of scuffing, scratches, enveloping them must be eliminated by polishing. Valve seats, defective work surface, resulting in integrity is lost, get used in conjunction with the valve and subsequent verification; valve engine exhaust – 107-050003 designed for installation in gazopasppedelitelnom mechanism of marine engines 6CHN (SP) 18/22 – 315hp and Spare parts for them. Valves provide for the periodic opening and closing holes exhaust ports located in the cylinder head. Valve one-piece, solid, manufactured by hot extrusion of high-alloy, heat-resistant and Steel 55H20G9AN4 gost 5632-72, cone of the exhaust valve, operated at high temperature in an aggressive environment of exhaust gases, has a ring of heat-resistant alloy cladding EP616A 37.308. TU-024-84, which increases the durability of the valve.
Stem chrome plated to increase wear by friction. Valves can be applied to all climatic zones in a single execution. Valve engine exhaust / intake – 01-050003 is designed for installation in gazopasppedelitelnom mechanism of marine diesel engines 6CHN18/22 and spare parts for them. The valves are used for the periodic opening and closing holes exhaust ports located in the cylinder head. Valve one-piece, continuum, produced by hot extrusion of high-, heat-resistant steel 40h10s2m. Valves with identical as the exhaust and suction.
After repair of marine diesel engines intake and exhaust valves must adhere to the working surface of the saddles a continuous strip along the rim of a width not less than 3 mm. Allowed to monitor the quality of lapping by a pencil with a turn at an angle less than 45 . Final check Quality lapping valve assembly with a lid, pouring kerosene. If, within 8-10 minutes from the valve does not appear kerosene, then grinding is considered normal. Inspect the camshaft. On working surfaces of the cams are not allowed teaser risks enveloping metal. Minor damage to the surface allowed zapolirovat; Inspect pushrods. At the bottom of the pusher is not allowed scoring, production, enveloping the metal. In the case of the presence of these defects, eliminate them polished. Rotation of the pusher during the marine diesel engine by the absence of one-sided elaboration on the bottom and the presence of lightening it by rubbing it on cam camshaft.