Points .017 and spark plug .035
A 'spark ignition ' engine is your regular gasoline engine as opposed to a diesel, which is a 'compression ignition' engine
There are basically two types of spark ignition engine. They are the diesel spark engines and the petrol spark engines.
With a points ignition the gap should be .035
what are the advantages and disadvantages of s.i engine
My 73 Bonneville has points type ignition. The later years had electronic ignition distributors, which had .045 or more gap. If you're engine is points type, the gap is .035.
A diesel engine has the same internal components and works off of compression ignition, not spark ignition.
spark ignition engine is also known as petrol engine. but in diesel engines the fuel is burnt due to the high compression of air.so there is no need of spark plug
A bad ignition coil will cause your engine not to have any spark. Without any spark the engine cannot start or run.
In and of itself, there is no current in a spark plug. Once a current is supplied, from an ignition coil (via a points distributer), or from a solid state ignition system (directed by a crank shaft sensor) a special ignition grade wire carries the current to the electrode of the spark plug. The primary current for the procedure to take place is supplied by the alternator when the engine is running, or by the battery when the engine is being started.
An SI engine ignites the fuel with a spark (SI = Spark Ignition) whereas the CI engine ignites the fuel with heat generated from compression (CI = compression ignition)
You could be out of gas or not getting fuel to the engine, or you could have an ignition problem. To check for spark to the spark plugs - remove one of the wires from one of the spark plugs, then put a large paperclip in the wire and hold it just above the engine where you can see the spark jump (I would hold the plug wire with a pair of rubber coated pliers), crank over the engine - if you do not get ny spark then you have an ignition problem. Check the ignition points under the distributor cap, they may need to be set to the proper gap.
Compression ignition is deisel. Otherwise, spark ignition is gasoline.