Single cylinder engines give a "push" to the system only once per cycle. A large flywheel provides mass and thus stability to the rotary motion being created by the engine. (It smooths out the motion of the system.)
Most single cylinder engines will not run with out a flywheel. Once you have a flywheel large enough to allow the engine to start and run then increasing the size and mass will help smooth the operation.
In the case of a single cylinder engine it would require a LARGE flywheel, so that rotary momentum is maintained. In the case of a multi-cylinder engine there are multiple firings of individual cylinders in 360 degrees of crankshaft rotation. Each cylinder as it fires helps the crankshaft maintain rotary momentum, thus a lighter flywheel is required.
A small flywheel has 153 ring gear teeth, a large flywheel has 168 teeth on the ring gear, small one measures 12 3/4" across and large measures 14" across.
where is the starter located on a 1998 dodge grand caravan *Added* All starters will be located on the flywheel, transmission housing, Usually on the bottom side of the engine. Its a large cylinder with a smaller cylinder on it, akathe Starter and starter solenoid.
Single-acting devices consist of a large plunger, or piston, into which oil (or air in a pneumatic cylinder) is pumped.
Usually it is a flywheel with a clutch to spin up the engine. In some installations they use a small low power electric motor to keep it spinning This allows the backup generator to start producing power in less than a second On some large engine piston/propeller aircraft a small starter engine spins the flywheel and engages to spin the engine once the flywheel is up to speed.
You need to keep in mind that a piston engine (as in most cars) isn't a steady supplier of power, particularly not at low revs. There's a burst of energy every time a cylinder fires, then nothing until the next cylinder ignites. A flywheel is just a large chunk of rotating mass to help even out the power delivery from the engine to the rest of the drive train.
The small ones have 153 teeth, the large ones are 168.
multiple cylinders create better torque, efficiency, and are better balanced. In addition, the same identical size engines would have large differences in piston size/weight, rod size/weight, bearing stress, etc.
Yes. There is at least one large freeze plug behind the flywheel. In some cases, there are two smaller ones to the side of the one big one. There are also freeze plugs on each end of both cylinder heads (if a 351 Windsor).
No, the flywheel is bolted to the back of the crankshaft. It is a large metal disk with teeth around the outer edge for the starter to turn the motor. There is a smooth surface on the flywheel face. when the clutch is engaged it is catching the flywheel so to speak, by pressing the two surfaces together tightly. This makes them one and so the engine is now turning the gears in the transmission, which ever you have selected at the shifter. A flywheel is only in a manual transmission.
Engine serial number located passenger side, rear where cylinder head and engine block meet on large flat area. Very difficult to get to with engine in car. usually 6 numbers with one single letter followed by VQ35 in the case of the 3.5 litre V-6 engine.