How many degrees of crankshaft rotation does it take to burn fuel?
How many degrees of crankshaft rotation does it take to burn fuel?
This would equate to 10 degrees of crankshaft rotation before reaching top dead center to give the fuel sufficient time for a complete burn. As the engine rpm increases to 3,000 rpm, the fuel, — still requiring the same time to burn — would never have sufficient time to burn if ignited at the same 10-degree timing.
What happens when the crankshaft goes back up?
This is the power stroke. As the crankshaft turns, the piston begins to go back up and the camshaft opens the exhaust valve. The upward moving piston forces the burnt gases out of the cylinder. This is the second or exhaust stroke.
What happens when engine heats up to operating temp?
As the engine heats up the ring-cylinder mate becomes looser so that the engine will run smoother and easier…but if there is too much wear the combustion gases will begin to blow by the ring-cylinder surfaces and will cause each stroke to lose power.
What happens when fuel is still igniting at 900 rpm?
This would mean that the fuel is still igniting while the piston is descending in the power stroke and would result in a massive loss of power. Using an engine idling at 900 rpm further illustration, the piston is moving upward at a speed that the fuel, given the time it takes to burn completely, is ignited 1/16-inch from the top.
Why does my Dodge Ram run till warmed up?
When starting truck cold, it runs perfect. After truck warms up starts to idle bad, and also starts making a loud suction noise like a vacuum leak. There’s no vacuum leak ,the noise comes from the throttle body. If I turn off the truck and turn back on , it starts up fine till 5 min. later when it starts all over again.
What does it mean when engine cranks slow when hot?
This assumes that you mean that the engine cranks slowly when hot. I mean the it is sluggish when turning over and after about 3 or 4 turnovers it cranks. Start by just pulling all of your cable connections at the battery and the starter. Clean them all up really well and put them back nice and tight.
Why does my Car start slow when it’s Hot?
Then have the mechanic disconnect the ignition and check the starter current draw again. If the current draw is the same, it eliminates the possibility of the engine being “carboned up”, and points to a starter problem. This assumes that you mean that the engine cranks slowly when hot.
What kind of car does not start after warm?
Pontiac Grand Prix Questions – Car will sometimes not start after warm. – CarGurus Car will sometimes not start after warm. When i start my car, for the first time during the day- I have no problem. When I go somewhere and shut it off, sometimes it won’t resatrt.
