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Thread: Self Tunning - Khyber G-10 (Plugs, valve clearance, spark gap etc)

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    Default Self Tuning - Khyber G-10 (Plugs, valve clearance, spark gap etc)

    Salam

    dear members/experts

    I own a khyber 1996. Recently overhauled its engine completely at home by myself except the mechanist part. It has its first oil change at 1100Km yesterday and i am planning to tune it. I have following query for the learned members/experts

    Q.1. recommended spark plugs for khyber g-10 on CNG
    Q.2. Recommended spark plug gap?
    Q.3. Recommended tappet setting Hot/cold?
    Q.4. Running was on petrol with Caltex Havoline formula and now i have switched to CNG with Shell helix HX7 10-40W (synthetic) , is shell HX7 ok?

    What else should i do or check to get max output and efficiency from my g-10?

    regards


    after-note: In addition to the above queries, this thread also contains info on carburetor, AC, electrical, cooling system, brakes & gear issues related to khyber G-10.

    Special thanks to following experts :
    Xulfiqar, Fas133, Margallar, Ahsanzs, wasay_Ahmad, Xplorer, jz, Daniyal
    for their valuable contributions and last but not least
    I am greatful to Cracked for keeping this thread alive by
    raising all the queries/question.


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    Quote Originally Posted by usb144 View Post
    This is not OEM Silver one. From Top it is Black. He told me that it is much better. It will easily serve its purpose for one season. In next season it will be replaced by new one. Silver one is also replaced after one season usually. Both work same and equally. He is responsible for any problem.

    One season?? what kind of lame service is that - a drier should be good for about 4 to 5 years before needing replacement unless your A/C system is completely cobbled together
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by smijaz View Post
    it must be the black one coz oem one cost more than 1200. I knew You have always something rare to suggest but now i know why, because, only the rarest thing happens to you. desiccant bag blew up

    I hope no such thing happens in this case coz it was me who referred him there.
    hehe - rarest thing happens to me, I usually get to fix those cars which have been gave up on.

    About the dessicant bag blowing up - yep it can happen and it DID happen, its worthless putting a cheap drier in the system and expect it to serve a long time
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Whats the prices of different brands of
    compressor and
    evaporator?

    Suggest anyone that works fine and relatively cheap...

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    Quote Originally Posted by Xulfiqar View Post
    hehe - rarest thing happens to me, I usually get to fix those cars which have been gave up on.

    About the dessicant bag blowing up - yep it can happen and it DID happen, its worthless putting a cheap drier in the system and expect it to serve a long time
    Thanks for assuring that a good drier can run upto 4 seasons, I was also a victim of change every season misconception.

    Regarding your experiences no matter how rare or unbelievable they are, I have never doubted any of them. So please keep sharing them, as you always do, in greater public interest.

    Thanks

  6. 28-03-2011, 07:17 PM

    Site Banned


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    my gear box is gettin sludge typr thingy all over it..
    i changed gear oil to zic 85 n i think since then,its gettin like this...
    wat to do?
    i chnnged it in winters cuz of the sound from gear box i put in here ..now tht sound has gone even in winters,it was quite,but now its like gettin out..wat shud i do?
    pour in back the old gear oil with thickness of 150 i guess...i still have tht in bottles cuz tht was only 5000 kms used...
    REAL men drive manual cars!

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    Quote Originally Posted by cracked View Post
    my gear box is gettin sludge typr thingy all over it..
    i changed gear oil to zic 85 n i think since then,its gettin like this...
    wat to do?
    i chnnged it in winters cuz of the sound from gear box i put in here ..now tht sound has gone even in winters,it was quite,but now its like gettin out..wat shud i do?
    pour in back the old gear oil with thickness of 150 i guess...i still have tht in bottles cuz tht was only 5000 kms used...
    how much oil did you use? what is the origin of the leak ?

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    oil was i think 2 liters or a little above..i guess 2.25...
    its getting around the point where speedometer wire is put into gear box..sludge is all over its surroundings...
    REAL men drive manual cars!

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    buy a good degreaser and wash out the transmission case - run the car shortly - 5 - 10 kms then check for oil leaks - you will find what you are looking for, If it was rebuilt in the past and the mechanic used plain silicone sealant - it is bound to leak, there is a threebond product that you are supposed to use to seal transmission cases that use gear oil. This threebond product is available in Karachi for sure, it costs about Rs 3800/tube
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    degreaser..ok ill get ine..
    but gear box hasnt been repaired by me...ive this car since 3 years n i havent got its gear box repaired,engine overhaul has been done ,i dont knw if tht time gear box is also oppened or wat..
    n xulifiqar bhai,the gear oil leaking problem has just poped up now,wen i was using thick gear oil,it was all good...i think seals are just worn out enough to let think oil out n not the thick one !
    REAL men drive manual cars!

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    n how to use the degreaser???i mean just spray on the specific area n it will wipe off itself?or do i need to brush it off???
    REAL men drive manual cars!

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    spray on the degreaser - work with a brush to dissolve the sludge/mud/grime and wash with water
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    what is this?
    i didnt see it all cng cars,i dont knw its purpose so plz guide!
    Self Tunning - Khyber G-10 Plugs valve clearance spark gap etc -222689
    REAL men drive manual cars!

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    Quote Originally Posted by cracked View Post
    what is this?
    i didnt see it all cng cars,i dont knw its purpose so plz guide!
    Self Tunning - Khyber G-10 (Plugs, valve clearance, spark gap etc) - 222689
    Its an electric valve for petrol, it is controlled thru the CNG switch in the dashboard, it is open when car is on petrol and close when car is on CNG.

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    does every car has it????i mean every cng'd car???
    REAL men drive manual cars!

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    its used on cars which have a mechanical fuel pump on the engine itself
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    is it a good thing or bad?/i mean im total lost abt this thing..
    petrol is always coming to engine n goes back wen cng is on...does this thing controls tht process?
    REAL men drive manual cars!

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    it blocks the petrol from reaching the carburettor when you are on CNG
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    @Xulfiqar

    Can you bust the myth of GL-4 Vs GL-5 gear oil.

    I recently have replaced my transmission as the old one got broken

    I had 85-140 GL-5 gear oil in my previous transmission

    Now I am planning to use 75-85W GL-4 in my new transmission.

    There is a lot of theories in this regard like GL-5 will eat away brass synchronizers while others say there is no such thing as brass synchronizers in synchronous trany. Some say GL-5 is an advanced version of gl4 and is backward compatible while other says its not.

    Can you please explain this and give your recommendation accordingly for my Front wheel drive tranny.

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    ^^your transmission does use brass synchronisers on all gears. Using GL-5 will erode the brass slowly till you get slipped or crashing shifts because the synchros stick or do something stupid. And when brass erodes away it cannot stick to the magnet in the transmission, it instead just gets thrown around everywhere.

    GL-5 is great for shear stability but cannot be used in oldschool brassynchro transmissions. GL4 is cheaper, more economical and easier to get too.
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    Quote Originally Posted by Xulfiqar View Post
    its used on cars which have a mechanical fuel pump on the engine itself
    Quote Originally Posted by Xulfiqar View Post
    it blocks the petrol from reaching the carburettor when you are on CNG
    Yes Xulfiqar is right. It is known as Petrol Solenoid Valve.
    I removed that valve when I changed my car's fuel pump from mechanical to Electrical one.

    Self Tunning - Khyber G-10 Plugs valve clearance spark gap etc -223845

    Self Tunning - Khyber G-10 Plugs valve clearance spark gap etc -223846
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