Is it OK to drive on 3 cylinders?
The problem with running on only 3 cylinders isn’t the unbalanced load on the crank. The problem is all the unburnt fuel from the dead cylinder will end up burning off in the turbo and catalytic converter. This can kill those parts.
What are the firing orders of a 4 stroke engine?
From figure 4 cylinder #1 fires in the first 120 degrees. In the next 120 degrees (240 degrees), as cylinder #1 moves from the power stroke to the exhaust stroke, cylinder #4 fires. In the next 120 degrees (360 degrees), as cylinder #4 moves from the power stroke to the exhaust stroke, cylinder #3 fires.
How often does a 4 cylinder engine fire?
For every 720 degrees the crankshaft turns, the camshaft turns 360 degrees causing all cylinders to fire once. In a 4-cylinder engine such as the one in Figure 1, by the time the crankshaft turns twice, the camshaft would have turned once, firing all 4 cylinders once.
Why are cylinders not fired at regular intervals?
Note however that in some V engines, especially V8 engines and above, manufacturers or engine builders don’t necessarily fire cylinders at regular intervals; this is a concept of engine design called uneven firing. This is done to obtain an aggressive burbling and throaty engine sound. Uneven firing orders will not be discussed in this article.
What is the firing order of a VW Jetta engine?
Let’s assume the engine in Figure 1 has a firing order 1-3-4-2, as is the case on a 2005 1.8 Liter VW Jetta. Since we are assuming a firing order of 1-3-4-2, cylinder #1 will be the first to fire or generate power. Next up will be cylinder #3 followed by cylinder #4 and then finally cylinder #2.
From figure 4 cylinder #1 fires in the first 120 degrees. In the next 120 degrees (240 degrees), as cylinder #1 moves from the power stroke to the exhaust stroke, cylinder #4 fires. In the next 120 degrees (360 degrees), as cylinder #4 moves from the power stroke to the exhaust stroke, cylinder #3 fires.
For every 720 degrees the crankshaft turns, the camshaft turns 360 degrees causing all cylinders to fire once. In a 4-cylinder engine such as the one in Figure 1, by the time the crankshaft turns twice, the camshaft would have turned once, firing all 4 cylinders once.
Note however that in some V engines, especially V8 engines and above, manufacturers or engine builders don’t necessarily fire cylinders at regular intervals; this is a concept of engine design called uneven firing. This is done to obtain an aggressive burbling and throaty engine sound. Uneven firing orders will not be discussed in this article.
Let’s assume the engine in Figure 1 has a firing order 1-3-4-2, as is the case on a 2005 1.8 Liter VW Jetta. Since we are assuming a firing order of 1-3-4-2, cylinder #1 will be the first to fire or generate power. Next up will be cylinder #3 followed by cylinder #4 and then finally cylinder #2.