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  1. Join Date
    Mar 2009
    Posts
    20
    #11
    If you will be within the vicinity of Evangelista, Makati, in front of the Iglesia ni Kristo look for Mang Vising. He's recommended for carb overhauling.

    Question: how much kaya magagastos kapag pinalitan engine ng Mitsubishi Galant 1991 (2.0 engine) ko that still uses carb to the one that's EFI?

  2. Join Date
    Mar 2009
    Posts
    20
    #12
    ..........
    Last edited by bobreyes; March 5th, 2010 at 05:13 PM. Reason: duplicated post

  3. Join Date
    Nov 2008
    Posts
    11
    #13
    OK naman po sa A&M carburetor specialist try nyo po dun. kapag po nag je-jerk problem po nyan sa "primary plunger" bk po barado kaya d smooth ang daloy ng gas.. magiging pino po takbo nyan sabay Tune up na. na experience ko na din kasi yan. dun po ako nag pagawa.

  4. Join Date
    May 2010
    Posts
    8
    #14
    May problem ako mga Sir sa gas consumption ko 3.65 km/per liter lng ang tinatakbo ng oto ko.
    3k na carb nakakabit sa 12valve 1500 engine n nkakabit sa 89corolla small body na dapat 10-13 km/per liter ang gas consumption ko. ok naman na ung timing bagong palit sparkplugs ko nsa tamang idling na pero walang pag babago sa konsumo ng gasolina
    tanong ko lng kng dapat po ba na kumuha ako ng 4k na carb or okay n ung 3k na carb

    Your Opinions are greatly appreciated


    Salamat pO!
    Last edited by ELSINORE; May 14th, 2010 at 08:51 AM. Reason: have to include the car made and year

  5. Join Date
    Mar 2008
    Posts
    575
    #15
    Quote Originally Posted by ELSINORE View Post
    May problem ako mga Sir sa gas consumption ko 3.65 km/per liter lng ang tinatakbo ng oto ko.
    3k na carb nakakabit sa 12valve 1500 engine n nkakabit sa 89corolla small body na dapat 10-13 km/per liter ang gas consumption ko. ok naman na ung timing bagong palit sparkplugs ko nsa tamang idling na pero walang pag babago sa konsumo ng gasolina
    tanong ko lng kng dapat po ba na kumuha ako ng 4k na carb or okay n ung 3k na carb

    Your Opinions are greatly appreciated


    Salamat pO!
    Sir:

    3+ km / liter is just goddamn UNACCEPTABLE! With gas almost Php 50/liter its also quite PAINFUL!

    Lets see if I can help.

    Lesson No 1 - Carburetion begins at the air filter and ends at the tailpipe.

    Q - Did you change your exhaust system, pipes and mufflers with bigger ones?

    Big exhaust pipes and mufflers often cause a big drop in BOTH the acceleration and fuel economy because they completely upset the fuel system's sensitivity, making the engine burn rich. - they LOOK good but they perform BAD.

    Look at the tailpipe - is it black and does it smell of gasoline when the engine is running?

    Does it drip water on cold mornings? - those are the symptoms of rich (excess gasoline) mixtures.

    In this case the solution is simple - put the original exhaust system BACK! Unless talagang ikakamatay mo ang pagpoporma.

    If you did not touch the exhaust system, make sure that the rest of engine is OK - that is:

    i) the ignition system is OK - spark plugs, high tension wires, timing, etc.
    ii) the valves are correctly adjusted
    iii) the engines' mechanicals are ok - no loose compression, good temp, no blowing of oil or etc.

    Then and only then it is time to blame the carb.

    Regards,

    Dusky Lim
    Last edited by duskylim; May 15th, 2010 at 09:35 AM. Reason: bad spelling

  6. Join Date
    Mar 2008
    Posts
    575
    #16
    Dear Sirs:

    Here's part 2 of my previous post:

    If you are now getting serious with carb repair, then here are the 1st steps to a overhaul.

    1) buy a good quality carburetor repair kit for your carb.
    2) determine the correct specs for your carb - very important, you cannot set a carb by 'estimate' or 'tancha' - its just IMPOSSIBLE - you NEED the SPECS!
    3) carefully remove the carb from the engine, keep it UPRIGHT ALL THE TIME and bring it to a clean worktable
    4) dismantle it slowly, remembering where all the parts go - make diagrams or drawings if needed.
    a) take off the external springs and locks 1st
    b) then remove the screws and carb cover be careful not to damage the gaskets and seals - just in case you need them.
    c) check whether the float level is correct - you will need the specs here
    Note: you cannot tune a carb UNLESS the FLOAT LEVEL is CORRECT - all other systems depend on this being right!!!
    d) check the float bowl's condition, is it clean? are there deposits and fouling? if the system is blocked the carb is DEAD!
    e) take off the jets, primary idle, secondary idle, primary main, secondary main, power/enrichment, accelerator pump, etc. - inspect them for dirt and blockage, soak them in a strong solvent and blow dry and clean with compressed air.
    f) use high-pressure compressed air and a strong solvent to clean the carb's body.
    g) record all the jet sizes and numbers, and compare with those of the repair kit. If the original jets look OK just change the seals or o-rings (kung meron lamang) and put them back. If the sizes/numbers are the same on the replacements look to see if the holes/orifices are the same size - if so, then you may try using them.
    h) re-assemble your carb with the new gaskets and seals - fill the bowl with a mixture of gasoline and solvent for starting reconnect all lines, springs and cables and you're good to go.

    Regards,

    Dusky Lim

  7. Join Date
    May 2010
    Posts
    8
    #17
    Thank yOu for the REply Sir. I really Appreciate it, Regarding your theory I had already replaced major parts of it, 1st. I had it tuned up I have changed the sparkplugs changed the oil even had it tOp overhauled I have to change the distributor to a contact point one because the one I had before was broken by a moron who rev's my engine like it was a saturn engine like his, So off I go to banawe to get me the same electronic distributor which caused me 7k in total cause the dude from the not so called store say's the 1st one had to be broken and I have to get a new one which he so called say's he's custom made but the replacement was not compatible with my engine so I end up getting a 400php worth of distributor contact point type, lovely huh?..., anyway I changed the muffler to a new stock one have to change the rear end of it and even the middle I dont want to get a big muffler for my car because I dont have a big engine anyway and besides even if I'll have a 4e engine lets say in the near future I wont get a noisy muffler for it ,I just want it to be stock as simple for now, since I was given a tip by a gentleman from this forum I guess I would take his advice
    to get rid of my stupid carb and blow the sh#$t out of it for good..
    hahaha..



    Any more advice will be greatly appreciated.,



    Thanks Again!

  8. Join Date
    May 2010
    Posts
    8
    #18
    Sir.
    I would like to ask your jetting recommendation for a 12valve 1500 engine used in a corolla small body car..
    and would you recommend using a 3k carb instead of a 4k carb..


    Thank You!.

  9. Join Date
    Mar 2008
    Posts
    575
    #19
    Quote Originally Posted by ELSINORE View Post
    Sir.
    I would like to ask your jetting recommendation for a 12valve 1500 engine used in a corolla small body car..
    and would you recommend using a 3k carb instead of a 4k carb..

    Thank You!.
    Dear Sir:

    I really can't recommend any jetting till I see the original specs. Finding the correct jet sizes is a matter of extensive testing.

    You've got to get the basics right 1st - float level, smooth idle and progression. Then you can play around with the main jetting.

    I do recommend keeping the original mufflers and exhaust system intact.

    Do you have any experience in overhauling carburetors? If not then I don't recommend you do it yourself.

    Replace your air filter regularly every oil change, blow clean with air every weekend.

    As to the carburetor type, both of them are AISAN carburetors. However the newer models have all sorts of anti-pollution equipment built in and tend to be very finicky to tune and run.

    Simple is always better in my book - go for the simplest carburetor available - the early model 3K series.

    Hope this helps.

    Best Regards,

    Dusky Lim

  10. Join Date
    May 2010
    Posts
    1
    #20
    Sir I have this (leaking throttle shaft on my carburator,thanks to duskylim theory) of my small body 2e engine 92 model all stock po exhaust system, is there any remedy from this or is it good should I buy a replacement na lang?,sometimes kasi when the engine is warm na, nag jerk ang car in second gear or pag nag slowspeed na ung andar ng auto saka medyo malakas din sa gas,during accelaration naman wala cyang problema.

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Carburetor - buy or repair?