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Thread: Mehran Speed, Please help

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    Default Mehran Speed, Please help

    Hi Pakwheelers,
    I have Mehran 94 model, it was giving the speed of 85 on CNG(Landerenzo itaian kit) & same the case with petrol and not a good pick so I have spend Rs.14000 on its engine, changed many of the parts i.e pistons,rings,cluth & pressure plates etc. But after completing running and still 2500 km more (3500km total).
    Only the speed is improved by 5 to 7 km/hr i.e 90 95km/hr,
    and pick is improved.
    My friend 94 mehran doing 110 k/hr on CNG and 120 k/hr on petrol. And I have only spend lot of money from impressing from his Mehran's speed but still I got no speed, whereas the mechanic said after the engine made that u can take it to 120 but there are no signs of crossing 100, that will be the happiest day for me if I crossed 100 speed. Remember that CNG and petrol are checked and adjusted maximum to get speed but no speed.
    So plz help me that where could be the problem as many engine parts are new now. Consider every thing CNG adjustment, air intake, air filter etc.
    I am very dissatisfied because I have spend a lot of money.
    Also show me a honest mechanic bcz in islamabad all mechanics are real thaggus, i have done engine from Sitara market G-7/4 from Balli autos.
    PLEASE HELP ME CROSSING 100.

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    Default

    i hope ur clutch plate is fine too. btw, which engine oil do u use.

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    Default

    Bro go to rwp saddar and visit AAA work shop its good, also i can suggest one in lahore coz i m in lahore

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    Default

    Dear
    u r facing suzuki manufacturing fault i m alredy face this prob with my mehran so i suggest u that sell ur car it is better for u

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    Default

    @Robin
    CaltexCXT

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    Default

    please someone help

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    Default

    u just want to cross the 100km/h mark? That's easy just tie your car behind a speeding vehicle Just kidding. Maybe there's something wrong with your speedo it might not be showing u the right speed or the guy u got the engine overhauled from was a fraud and didnt overhaul it properly

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    @bilal
    if engine is fine and carborater has a tunning thn only 2 possibilities.
    1 check ur brakes(it happens sometimes that ur car brakes r applying with out knowing u)2 check ur exhsat. if its choked thn causing this problem.
    o commitment kithay chali gai?

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    Default

    what was your car's mileage when you replaced your pistons? are you sure you changed your pistons and rings? or was ur engine seized...
    I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it..and so restriction of free thought and free speech is the most dangerous of all subversions.

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    Default

    @NadeemIqbal
    Whats meant by
    "check ur exhsat. if its choked thn causing this problem"

    Yes pistons and rings are changed, speedometer is fine.
    Mileage and pick has improved a little but not the speed.
    I will check the brakes

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    Default

    silencer pipe and muffler(dholki) some times its choked if it is thn pick ll be redused. it is not necessery that all 4 brakes r out of order. it can be with one tyre and normally in mehran etc(suzuki) after a long time , rubber pipe connected to the brake piston, swells from inside.
    o commitment kithay chali gai?

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    @bilalahmad
    Change your vehicle s.plugs to Champion ones which daewoo mechanics use.Set s.Plug gap to 0.63mm
    Set point setting to 0.20
    Clean air filter and check s.plug wires and distributor cap central electrode and rotor
    Life is Precious -- Drive Carefully

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    Default

    i hope its ur distributed, try changing dat too. n if by chance u can put the CDI system in ,mehran u may see the meter running more then 100, n belive me cdi system cost b/w 2000, 1800. my civic use to do the same.. well i came to know the fault was in the engine ..its head was all gone :
    so try catching up a good mechianc den try changing the distributer with cdi . goodluck
    I DONT DRIVE F@st i JUST FLY LOW!!

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    Default

    I would suggest u to get all the wiring of the vehicle checked, Change the distributor wires and other wirings, Note here that when u run on fuel ur car only need 25% of its eletrical power , but on CNG it consumes 115% of its electrical power, The better the flow of electric in the car the better the performance.
    -

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    @bilalahmed
    What tyres are you using? it is possible that your car is actually crossing the 100kmh mark but due to oversized tyres you car is showing a slower speed on speedometer.
    1. A car is only worth what someone is willing to pay for it, 2. Resale wont save your life in an accident, 3. Genius has limits, stupidity has none, 4. Never argue with an idiot, they will bring you down to their level & beat you with experience, 5. Growing old beats the alternative -- dying young! 6. انّا للہ و انّا الیہ راجعون

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    Hankook tubeless tires

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    Hankook tubeless tires

  18. #18
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    bro u hav told ur problem in the start.. the fuel is opened fully. actually a car needs 50/50 air fuel mixture 4 optimum performance so check ur mixture or get a tuning 4rm honda

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    @bilalahmad
    I have a seven year experience of driving mehran n i can say tht with 90-95km/hr frm a 94 model on cng u shudnt be askin for more..
    i guess u shud be satisfied ..i dun think so the performance can further be raised (or may be not that i know off) but even if u manage to pull off a miracle take it with grain of salt....coz going on 100 plus on tht mehran cud spell dooms days...braking problems etc n other related probs can sprout up..

    Be happy driving ur machine n keep it well...if u want performance get rid of mehran..hope this helps

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