"hachiroku" wrote: > On Wed, 09 Mar 2005 15:33:14 -0500, cowboy wrote: > > > "hachiroku" wrote: > > > On Tue, 08 Mar 2005 13:54:18 -0500, cowboy wrote: > > > > > > > i have a 1987 corolla sr5, and i?ve > experienced acceleration > > > lag, > > > > irratic idle, backfires.. you name it. i > bought a carburetor > > > rebuild > > > > kit for my carb, but that hardly scratched > the surface on > > > solving my > > > > problems. it runs "better," but it?s far > off from running > > > > "correctly." the car should idle around 650 > rpms when warm > > > > (according to Chilton?s), but instead, it > idles around 1,000 > > > to 1,400. > > > > any lower, and it stalls. i?ve replaced all > of the hoses > > > connecting to > > > > the carburetor, and fastened them more > securely than the > > > ones before > > > > were. this helped a little bit. the car > still runs rich, > > > still > > > > backfires, and the idle is still irratic. > > > > i?m not sure whether or not to tackle the > fuel lines or > > > what, but if > > > > anybody has any idea what could help me > solve my problem... > > > i?d really > > > > appriciate it! > > > > > > I'm trusting you reset the float, cleaned the > needles and all > > > the little > > > jets in the carb when you had it apart? > > > > the carb is completely clean. didn?t do much with the float > though.. > > but most of the internals of the carburetor didn?t seem to > be in too > > bad shape. it was a basic rebuild kit; not TOO extensive, > but it did > > solve a few problems. earlier today, i checked some fuel > lines and > > found that one of the previous owners tried to apply > silicone to a > > crack and wrap duct tape around it in attemps to seal it; a > failed > > effort. i replaced the line, and noticed an immediate > overall > > improvement. however, the idle is still irratic and i cannot > get the > > car to idle below 1,000 rpms.. > > Yeah, again I'd check the floatr level. You made some changes, > miniscule > tough they may be, when you installed the kit. The float needs > to be > checked and the needle valve may need clening with carb > cleaner. > > One other thing, and this bites me in the butt, too; check > this before > anything else. It has been mentioned elsewhere here (to you?) > about the > vacuum hose thingy (I love getting technical!) that attaches > to the bottom > of the air cleaner housing. They come loose when you remove > the air > cleanerand cause problems similar to what you're describing. > Check that > tube before you do anything.
i DID in fact check the hose, and it?s in fine condition. the fuel lines, however, had some cracks.. i cut off as much as i could of the line to remove the cracks, and re-installed them. much improvement. the vacuum hose though, does need to be replaced and fitted with either a smaller hose or one of the same size with a clamp; i?ve run out of clamps. i want to avoid taking the carburetor out if i can, for a while. it took several hours to remove because the mounting bolts are so difficult to reach. but the entire carb was cleaned with carb cleaner using a small brush and water.