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1999 Suzuki Carry bad performance...NOT solved with brake fluid !!!

Discussion in 'Suzuki Carry' started by Victor Getov, Jul 3, 2020.

  1. Victor Getov

    Victor Getov Member

    Hello Guys,
    A month ago I bought Suzuki Carry 1999 model DA52T with F6A engine, carburetor, manual gearbox and no distributor. It was parked in a yard for 3 years. I changed the oil and oil filter, put new spark plugs, drained, flashed and refill with coolant the water system, put new battery and managed to drive it home.
    Than the "little" problem with bad performance turned for me in a nightmare !!!
    I took out, cleaned, adjusted and reinstall the carburetor. Starts perfect (temp.10C), engine wants to dye, but after a minute small acceleration stabilizes and has the most beautiful idling. Refs like a fighter jet engine.
    But when start driving it - gives me max speed of 55 km/h with minimum acceleration. As soon as I press the pedal down - engine dyes in 30-40 seconds, again starts, idle and refs perfectly.
    While driving - no any sings of petrol shortage or misfire !
    Just no power !
    Nightmare !!!
    Please - help !!!
     
  2. Bigmac

    Bigmac New Member

    Plugged fuel filter?
     
  3. Limestone

    Limestone Active Member

    Vic,
    Welcome! We've seen this multiple times, in units from mainly sitting, like yours has! Any time, a vehicle sets for a long period of time, dirty, bad or in sufficient fuel is a suspect! I had the same similar situation, By that I mean, If it were me I would drain the fuel tank completely, water is heavier than fuel, and settles to the bottom of the tank, even from condensation! There are several other post's on the forum describing and explaining these issues, if you use the search bar, you'll be able to find it! Any way, I would completely clean or replace the fuel lines, there probably original at 20 yrs. old! It's really not that expensive or hard to do. Not knowing the history of your vehicle, these are general area's to start! Even though you installed a new fuel filter, with bad or dirty fuel in the tank, the new filter can be, bad already! What about the fuel return line? It's very important that its not blocked or restricting venting also, probably, back to the tank! Go to G&R Imports, and read there tips on some maintenance issues, they do a great job explaining things there! These are just a few things to start with. Good Luck!
    Limestone
     
  4. Victor Getov

    Victor Getov Member

    Hi Bigmac, Thanks for your respond. Surprisingly - there was no installed filter between the tank and the carburetor. I put one in the very beginning. At this moment I am bussy taking the fuel tank out - to clean it and check the pump. I will post the findings here.
     
  5. Victor Getov

    Victor Getov Member

    Hi Limestone, Thanks for your respond. Just now I am busy with the tank - carburetor lines and will check the pump for constant pressure. I will post the findings.
     
  6. Jigs-n-fixtures

    Jigs-n-fixtures Active Member

    After you get things cleaned up: The Trouble shooting guide that G&R Imports has on their webpage, is invaluable. And, if you get a chance pick up an old mother manual with the trouble shooting guide in the front. A guide designed for the pre-computer controlled engines is really handy when working on our older trucks, as most mechanics, and trouble shooting guides available now are completely dependent on being able to hook up to the data port and trouble shoot using the computer. https://www.grimports.com/maintenance-tips
     
  7. Victor Getov

    Victor Getov Member

    Hello again, I took out the tank. It was crystal clean inside. The pump filter was also clean. I put the pump itself in a small bucket with blue methylated spirit and run it on battery. It looks too weak. It can not blow even 10 centimeters vertical up. Can this pump be the reason for the poor performance?
     
  8. Victor Getov

    Victor Getov Member

    Hi Jigs-n-fixtures, Thanks for your respond.
    It seems my Zuki is model manufactured just before the computer operated models. It has carburetor, but no distributor. On the shaft of the flop there are three wires coming out and connected to a white socked. On top of this on internet I find only carbs with 5 vacuum ports. My carb has only 4 !
    Worst of all is that in radius of 1000 km around Maun (Botswana) there is no even similar truck like my. The bush-mechanics never saw one and refuse to attend it.
     
  9. Limestone

    Limestone Active Member

    Vic,
    I was wondering what the fuel smelled like? Any hint of a varnish smell? I'm wondering how bad the jet's are varnished up! That dog gone stuff gets baked on those jets and will restrict flow, especially as you apply pressure to the throttle! I like the direction your headed in, eliminating things as you go! You'll get it, and then you'll know what you've got! I'm not surprised, that your the only one around with one, and there aren't any mechanics in sight to work on them. You see and hear this a lot! Good Luck!
    Limestone
     
  10. Jigs-n-fixtures

    Jigs-n-fixtures Active Member

    And, if fuel sits in teh tank, and cooks off teh lighter volatiles, they charcoal canister can get clogged up, and not allow air into the tank fast enough.

    The little trucks with carbs want to see about 2.5 psi, which would be a water column of 130-mmHg or 70-in of water. So it sounds like your fuel pump is weak.
     
  11. Victor Getov

    Victor Getov Member

    After all blowings to clean the fuel system and runing the pump about 1 hour in spirit - everything was installed back and the test drive showed dramatic decrease in the performance.
    Now the maximum speed dropped from 55 to 40 km/h !
    Starting, idling and refs are like before - working perfect.
    Nightmare !!!
     
  12. Victor Getov

    Victor Getov Member

    Next thing I did was to completely bypass the fuel system. I connected external pump + filter from Jerrycan directly to the carb. Zero improvement. Perfect starting, idling and refs in the yard and chocking and dyeing on the road.
    Nightmare !!!
     
    Last edited: Jul 4, 2020
  13. Limestone

    Limestone Active Member

    Sounds like a carb. rebuild is in your future!
     
  14. Victor Getov

    Victor Getov Member

    Tomorrow is going to be AGAIN carburetor day. Here now is 01:15 ...
    It is burning too rich - the spark plugs - brand new - are already with black, sandy deposit and it seems the accelerator pump is giving too much fuel - can not thing for other reason to drive with minimum acceleration and dyeing if the pedal is pressed to the bottom.
     
  15. Limestone

    Limestone Active Member

    Everyone who has had these similar situations, had to rebuild their carb.!, but you had to eliminate the rest to get to this point!
     
  16. Victor Getov

    Victor Getov Member

    In this situation with Corona-19 for me rebuilding the carburetor is like Mission Impossible -55 !!! Even if I order carb kit from AliExpress it is with "Unknown delivery time" - from 3 months to never.
    Today I just opened the exhaust pipe - to make sure there is no clogging in it. It is in perfect condition.
     
  17. Limestone

    Limestone Active Member

    I know, it's pretty frustrating, and yet there's nothing we can do! Probably not a bad idea, to eliminate any and all possible unforeseen problems!
     
    Last edited: Jul 27, 2020
  18. Jigs-n-fixtures

    Jigs-n-fixtures Active Member

    Have you done all the things the G&R link I gave you above? Carbs. Get blamed for a lot of problems you can fix with electrical and tuning issues. A bad ignition coil will also cause the problems you are having.
     
    Limestone likes this.
  19. Victor Getov

    Victor Getov Member

    I have done everything from G&R. Still no any improvement.
     
  20. Victor Getov

    Victor Getov Member

    At this moment I have half tank of fresh fuel and, by advice from a friend I added 500 ml of brake fluid.
    ZUKI GOES LIKE CRAZY !!!
    It is not 100% yet - I thing my vacuum hoses are mixed around. And I am still battling to find diagram for 4 vacuum ports carb.
    I will post update after I put new fuel without brake fluid.
     

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