PULLOUT MAIN ENGINE LINER....[ Ссылка ]

An exhaust valve is a valve that releases burned gases from a cylinder. ... As pressure increases during compression and combustion, a small amount of air-fuel mixture is forced around the edges of the exhaust valve and between the valve and valve seat
An exhaust valve is a valve that releases burned gases from a cylinder. The exhaust valve closes during the initial part of the induction stroke. The inlet valve usually opens a little before top dead center and the exhaust valve remains open a little after top dead center.
Fitter on ship and gives ideas for pipe fabrication, welding techniques, overhauling ship machineries ether mechanical or electrical drive , and also lathe machine on how to operates and making various job specially on threading jobs, making flanges, pumps bushing etc. .air condition technician and pipe fitters, making elbows in different degrees and reducer eccentric and concentric and metal fabrication, such as air duct, air venting mushroom and various modification

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