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Thread: Bad Bad CNG average from carby 3cyl cultus engine

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    Default Bad Bad CNG average from carby 3cyl cultus engine

    AOA guys hope ur in good health.
    Now this time i came up with another problem of getting very very bad average of CNG from my charade equipped with carby 3cyl jap engine and with automatic transmission.
    well bros it give me average like 150km or more didnt calculated it as since it requires 1 time refill of CNG in a week used as office-home duty and going trouble free.
    but now some time back it started to give me like 100km on a 1 tank refill of 55kg cylinder dont know the reason of this much consumption and it requires refill after 3 days now.
    some time back its Rings gone bad and engine started throwing smoke on heavy load on the engine but stops after the load become equalized.
    mechanic telling me to replace them as it would cost me 10k for this job. and esp engine start throwing smoke after conversion from petrol to cng and vice versa and engine also start doing missing nowadays.

    well i never blocked the air intake since it was on cng and running fine but few days back engine started tremendous missing on cng and car was not able to move forward i took it to mechanic he after cleaning plugs/distributor e.t.c blocked the air intake with a rubber bush and now on cng it works fine but on petrol it start missing until that rubber bush blockage in intake is removed.
    i didnt understand why rubber bush blockage is required on cng? and on petrol it works fine only on open air intake.
    and still bad cng average.

    need your suggessions
    thanks for reading out.

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    is engine consuming oil
    seems compression dropped and engine weak
    hence consump also increases
    Life is short and very unpredictable just like a Quarter mile .....

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    Quote Originally Posted by hash4u View Post
    is engine consuming oil
    seems compression dropped and engine weak
    hence consump also increases
    yes consuming oil less than half of the level shows on on dipstick on oil change compared to full.
    im thinking to re swap vitz 1.0L engine in it or maybe rebuild the same last option as swaping a engine in a car is a pain and adjusting a swapped engine is a big big pain as im gone thorugh it but once adjusted the thing is new...
    .....

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