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92 Suzuki, No top end power?

Discussion in 'Suzuki Carry' started by KElmore, Mar 22, 2008.

  1. KElmore

    KElmore New Member

    Hello, I have a 92 suzuki carry. Drove it a couple of hundred miles with no problems,, thing would go 110 KM ran like a top!
    Now it barely get to 60km,, Changed the fuel filter which was pretty nasty, changed the fuel pump, and air filter, changed the spark plugs (they were a bit black, so its on the rich side.. Tried some carb cleaner, all to no avail.

    Moved the distributor a bit, for timing in both directions, still the same problem.
    Check the cap, cleaned it, going to order a new cap and rotor, but I don't think thats the problem.

    It idles ok,, not perfect. It revs fine in neutral. No major engine noises or smoke..

    Tried to check most of the vacuum lines..
    To me it seems like its not advanceing the timeing when under load..
    Or the carb isn't putting out at topend?

    Any suggestions, comments or other things to check, has anyone else had a simialiar problem?
  2. KElmore

    KElmore New Member

    Lets add a bit more information. While driving it, and it being "doggy" in third gear trying to get the rpm's up.. It took off! was able to shift to fourth and it kept reving great! went to fifth,, it kept going. Just Great! Got it up to about a 100km. This went on for about a mile.
    Slow down for a turn and it went right back to "doggy" 4th gear,, barely able to get to 60km.

    I'm scratching my head over this one. :confused:
  3. Wolfman

    Wolfman Member

    sounds like a vacuum leak of some sort. Check all of the vacuum hoses, and see if you have one that is cracked.
  4. KElmore

    KElmore New Member

    I'll check all again in the morning,, Probably use some soapy water,, and try in find it. Thanks for the suggestion.
  5. Dan

    Dan Member

    I can see using soapy water for air that is leaking out. it would make bubbles like on a tire leak but, what is that going to do when you are sucking air in? what i've done in the past is to spray a shop aerosol like carb cleaner or brake cleaner (something flammable) along the lines and look for the change in rpm's. its probably not the safest thing to do but, it's helped me find vac leaks.
  6. Wolfman

    Wolfman Member

    Well, if he does have a cracked hose, the soapy water will briefly "seal" the bad hose, untill the stuff gets sucked into the system. The tiny amount of soapy water won't hurt anything, and certainly won't lend to any flammable surprises. ;)

    I'd plumb a vacuum gauge into the dash myself, so I could watch what's happening as the vehicle acts up in real time.
  7. KElmore

    KElmore New Member

    Thanks for reminding me,, I got a vacuum gauge,, last time I used it was on my old 69 blazer,, I just t'd it off to the distributor vacuum hose. I'll try it with the mini and see what I come up with.

    There's just a butt load more of vaccuum lines on a mini and a lot harder to get to than an old chevy.

    Have a good easter sunday.
  8. Dan

    Dan Member

    I've got one too, i think its been in the back of the bottom drawer of the tool chest for years. I used it once for a leakdown test. you're right its one of those tools you forget about...
  9. zbadboy

    zbadboy Member

    I had one that was missing and acting up. The hose to the brake booster was disconnected. It connects in by the front cyclinder. Yours might not be disconnected but could be cracked or have a small leak. The fact that you slowed down (used the brakes) to turn the corner may cause this problem. Just a thought.

  10. barneyrb

    barneyrb Member

    have you checked for a stopped up exaust system?
  11. KElmore

    KElmore New Member

    Cut the exhaust off with a sawzall, one of the first things I tried. Didn't make any difference. Didn't really have a chance to work on it today, had family down. But take it for a short drive, same thing, "doggy" then it took off and ran good for about a 1/2 of a mile.

    I'll check the brake booster lines tomorrow, and go back thru it.. I may just buy 10' of vacuum hose and start replaceing them all. While I'm at it, I'll probably replace all those little coolant lines going to the carburator too.

    Thanks for all the input. This one has me stumped.
  12. Hoit

    Hoit New Member

    Hello everyone, I am new to the forum. Just joined on Sunday, I will send pictures and stuff when I get a chance. I have a Suzuki with a 550cc. The truck runs like a top and is in mint condition, but seems to have simmilar issues like you are having. My truck has been like this the whole time I've owned it, approx. 6 mon.. Just figured thats how it is. I love this thing but it seriously needs more horsepower.
  13. draggbody

    draggbody Member

    clean the egr valve... they have a tiny hole in the and a pai to get truly clean... a vacuum pump will help cycle it to see it fuctioning... also what about the catalytic converter... i think it is a manifold type, if so, gut it out... i have one that runs exactly like you say and i have tried a good used cap, but i still think this is the root of the problem... the egr was clogged bad, and the cat was stopping up as result of the misfire... if i "feather" the gas i can get it to run good, but i think this is result of the advance getting just right w/ a poor cap....
  14. DRW

    DRW Member

    No power

    KEImore, you might check the mechanical advance mechanism in your distributor, the vacumm advance is for cruise performance and when you are really on the gas manifold vacumm is nill to none so even if you have a small vacumm leak I doubt this is your problem.You may have some trash sloshing around in the float bowl of the carb,I have seen a gnat stop up a main jet like a cork.Draggbody mentioned a manifold type catalytic converter,I was told my truck did not have a converter, but I have thought that the manifold setup was strange not to be a converter.
  15. KElmore

    KElmore New Member

    Thanks for the suggestions.
    Haven't punched out the cat yet, the two bolts holding the pipe on are pretty froze up and I have been soaking them.
    Don't think its the cat though,, if it was it would be doing it all the time.
    I'll pull the ekg valve tomorrow and replace the lines going to it.

    Have replaced a few of the vacuum hoses, the ones attached to the intake manifold are hard from the heat. but no effect yet.

    Checked the brake vacuum hose, it seems to be ok. dumped some seafoam in it.
    Took off the stop idle solenoid and its funchtioning fine.
    Double checked the spark plug wires..
    Cleaned the vent on the gas cap.
    Mechanical advance? My distributor has a can on it with a vacuum line going to it. Pull the line off and it dies.

    Any suggestions to getting the rotor off,, looks like I can turn it a bit and get to a phillips screw underneath, but didn't wanna take the chance of cracking it until I get a new rotor.

    I'll get it done sometime.
  16. DRW

    DRW Member

    The mechanical advance mechanism will be under the breaker plate as it used to be called or is was under the rotor on GM distributors,you should be able to twist the rotor one way and is should spring back.The mechanical advance works off the centrifugal force of the spinning distributor shaft.The mechanism can stick or a spring break and the timing will go haywire.You say your engine dies when you unplug the vacumm advance? Normally initial timing is set at a specified RPM with the vacumm advance unplugged,so you may be close to your problem.
  17. KElmore

    KElmore New Member

    Thanks, I did try to twist it, out of habit from gm distributors. and it didn't have much give to it. I just assumed that it was a jap thing. I'll dig into that once I get my new cap and rotor, hopefully it'll be here by this weekend.
  18. Dan

    Dan Member

    be careful poking around under the cap. be gentle with the advance mechanisims, i ripped a vac diaphragm over-extending it once.
  19. KElmore

    KElmore New Member

    Thanks for the advice dan.

    I got bigger problems. Went to clean all the little water lines going to the carb, and do the flush to the radiator system. It had some black/brown gunk in it... Well that black/brown gunk was actually some kind of leak sealant.. I got water in my oil now.

    Who has valve cover/ intake/head gasket set available for a suzuki Fa6?

  20. DRW

    DRW Member

    Call Keith Rhoads @ Crossroads Imports. 816-632-3174

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