|
Why is my Barracuda running rough @ high rpm's?
Hello, I have a 1968 Barracuda w/ a 318, all stock, that has started to run rough at higher rpm's while driving. I think the plugs might be fouled, but thought to seek the advice. What do you think?
[ ]
Want to answer more questions in the Technology category?
Maybe give some free advice about: Cars?
well it might not just be the plugs. i'd suggest replacing them yes. but have you rebuilt or replaced the carburetor? the carb could be the problem right there. a buildup of oxidized fuel residue on the floats or venturi, or even the main valves could be causing trouble while driving. i'd suggest buying a rebuild kit and follow the instructions to rebuild the carburetor.
you might also have to reset the timing on that engine. if it's a stock 68 the timing could have gone awry a long time ago. go get yourself a new distributor cap, rotor, and wires and look up the firing order for that engine, and reset it all from the dristibutor on up. it's a bit of work but it's well worth it to make that thing run like it should.
well an update on the carburetor. just take off the air filter and it should be right under there. and the sputtering and gulping given off is most likely an engine running too rich. the engine is getting more fuel than it should and is gagging and trying to get more air in it. what i suggest doing is going to o'reily auto parts and asking for a carburetor kit for a 68 barracuda and they should be able to help you out. i'm gonna suggest a rebuild now because it will help you to diagnose any problems the carb may be having and would help you to fix it without having to buy a whole new carb. and it shouldn't be more than $25 for a kit. it'll come with instructions, and diagrams, and all the other things you'll need to know as far as rebuilding it goes. you'll need a couple screw drivers, a wrench or two, and possibly a ratchet set. you'll need a couple spray cans of carburetor cleaner (removes oil, gunk, and other junk) and a metal pan of some sort to keep it all in. what you do is take the whole carb apart and place all the parts into the metal pan. then pray them all down with cleaner while they're in there and let em soak in the cleaner for a few minutes. then take each piece out and check for cracks, bends, or breakage in them. and put the carb back together. then put it all back on, reconnect all the lines and go from there.
also check your air filter, it could be old, dirty, and in need of replacement. which could be starving the engine of air. i'd suggest changing it. with a new one which you can get at most any auto parts store. now there are a lot of other things that could come into play that could cause rough running. you should also check your fuel lines, and if you'd want to give it a look take off the valve covers and check to see what's going on under the heads. hit me up with another question for some more info if you need it.
]
that sounds like it could be a transmission problem - but im not to familar with that make and model so im not that sure - its best to just take it to a mechanic they know best.
]
More Questions: |