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  1. Join Date
    Sep 2006
    Posts
    2,746
    #1
    Curious lang po. What would happen if 3 spark plugs lang ang nakalagay, can the engine still possibly run smoothly but with less power, or talagang magiging rough at irregular ang andar nya?

  2. Join Date
    Aug 2005
    Posts
    7,186
    #2
    Tatakbo pa rin I think pero palyado. Sayang ang gas na mapupunta sa cylinder na wala o di gumaganang spark plug.

    Ng nasa US ako, may nagamit akong rental na six cylinders. Pero may tipid mode siya na 3 cylinders lang ang gagamitin. Laking tipid sa gas.

  3. Join Date
    Dec 2007
    Posts
    710
    #3
    Quote Originally Posted by sean-archer View Post
    Curious lang po. What would happen if 3 spark plugs lang ang nakalagay, can the engine still possibly run smoothly but with less power, or talagang magiging rough at irregular ang andar nya?
    well, the engine would run pero palyado. and I dont think its a very good idea to do it.


    aite, peace.

  4. Join Date
    Oct 2002
    Posts
    10,820
    #4
    unburned gasoline will accumulate in the catalytic converter and muffler. in the muffler it will just cause a back fire, but in the cat it can cause a fire and even a big explosion. remember, a liter of gasoline has the same explosive power as 100 sticks of dynamite. would you want even 1 stick of dynamite explode under your car?

  5. Join Date
    Aug 2005
    Posts
    7,186
    #5
    Quote Originally Posted by yebo View Post
    ...........remember, a liter of gasoline has the same explosive power as 100 sticks of dynamite...............
    I did not know this. Thanks for the trivia.

  6. Join Date
    Oct 2002
    Posts
    29,354
    #6
    Quote Originally Posted by sean-archer View Post
    Curious lang po. What would happen if 3 spark plugs lang ang nakalagay, can the engine still possibly run smoothly but with less power, or talagang magiging rough at irregular ang andar nya?
    In a four cylinder engine, it would result in a rough running engine and would lead to bearing failure in the long run.

    In other engine types like six cylinder engines, it is possible to shutdown three of the six cylinders. This means there is no spark nor fuel going to those cylinders. Also the valves are set to "open" during the compression phase of the cycle as to minimize parasitic loads. This will result in lower fuel consumption for larger engines when they are simply cruising at a constant speed or idling for a long time.

  7. Join Date
    May 2007
    Posts
    2,328
    #7
    Quote Originally Posted by sean-archer View Post
    Curious lang po. What would happen if 3 spark plugs lang ang nakalagay, can the engine still possibly run smoothly but with less power, or talagang magiging rough at irregular ang andar nya?
    If that happen, sasayaw ng tango ang kotse mo.

  8. Join Date
    May 2006
    Posts
    635
    #8
    sa 4-cyl engine,theoretically one cylinder is equivalent to 25% ng power mo ang lost (but the engine can never run 100% kaya its more than 25% ang loss mo). imagine mo ang isang kabayo na tatakbo ng putol ang isang paa. what do you think ang power nya?

  9. Join Date
    Oct 2002
    Posts
    29,354
    #9
    Quote Originally Posted by t2erns View Post
    sa 4-cyl engine,theoretically one cylinder is equivalent to 25% ng power mo ang lost (but the engine can never run 100% kaya its more than 25% ang loss mo). imagine mo ang isang kabayo na tatakbo ng putol ang isang paa. what do you think ang power nya?
    Actually the actual concept of shutting down one or more cylinders to save fuel isn't new, the problem is the resulting vibrations if the engine isn't balanced after the cylinder shutdown. Thats why this technique is more applicable to engines with 6 or more cylinders.

  10. Join Date
    Jan 2006
    Posts
    1,682
    #10
    Quote Originally Posted by t2erns View Post
    sa 4-cyl engine,theoretically one cylinder is equivalent to 25% ng power mo ang lost (but the engine can never run 100% kaya its more than 25% ang loss mo). imagine mo ang isang kabayo na tatakbo ng putol ang isang paa. what do you think ang power nya?
    Slow kangaroo!

    Sean, if you want to experiment. Remove the whole spark plug para walang compression resistance, the injector signal para walang fuel, the whole tension wire and tape the whole on the cap para walang arching.

    If you want to go further shut the running mate piston and do the same as above. Do the sa pababang road para may momentum ka. Goodluck!

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only 3 spark plugs?