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Intake stroke
Run a compression test before you spend too much time checking out other potential problems. If the compression tests good, try swapping the fuel injector with a good cylinder and see if the dead cylinder moves.
Compression
carotid artery
In an internal combustion engine with a carburettor a mixture of air and atomised fuel is drawn into the cylinder. If the engine is fuel injected compression ignition engine then air is drawn in, the fuel is introduced just before top dead centre of the compression stoke. If you mean intake stroke, then the answer is air.
Compression Stroke
carotid artery;> ~nova net~
butts
It is not normal because that is a common ignition failure. This is can be caused by a broken lock pin in cylinder assembly.
The back of the ignition key cylinder is probably broken.
SI is SPARK IGNITION - Otto (4-stroke) and Day (2-stroke) cycle CI is COMPRESSION IGNITION (DIESEL) also in 4- and 2-stroke variants The SI spark plug is timed to start combustion at the ideal moment, usually some degrees before the piston reaches the top (TDC or Top Dead Centre). The burning mixture then drives the piston down for the power stroke. The CI fuel is injected (sprayed) into the cylinder at the ideal moment - this too is usually some degrees before TDC, and the red-hot air in there then starts the fuel burning. This then drives the piston down for the power stroke. SI is limited in maximum compression ratio (the amount the air or mixture is compressed as the piston rises in the cylinder), or it can start to behave like CI (Dieselling). CI uses the highest compression ratio possible to improve ignition - and - improve efficiency too... The expansion ratio is the inverse of the compression ratio, and the more that the burning gas is allowed to expand whilst doing work, the better the efficiency. CI is also an 'excess air' cycle, potentially. A full cylinder of air is compressed each time, and the amount of fuel injected is varied to change power - this is beyond the lean burn that can be achieved with SI.
10 degrees before TDC