Engine problems???

Discussion in 'Street/strip 400/430/455' started by EEE, Aug 25, 2004.

  1. EEE

    EEE Straight out of lo-cash!

    My Centurion is making a slight ticking noise under acceleration. I believe it is coming from the driver's side of the engine, but I could be wrong. When the car is idling there's nothing, but when it's time to go you hear a slight ticking from the front. Is this something easy to determine what it is, or is it better to have someone more expreienced to look at it. I'm just curious since it's not there when it's just idling, but then starts when you start to accelerate?

    The car also bogs down under heavy acceleration, more and more recently... It starts to chirp and bog and almost dies when you're giving it alot of gas. Under gentle acceleration you don't notice it, but when you apply gas quickly it chokes, but comes back. There's also a slight unevenness in the idle, you can feel a slight roughness, very faint but it is there. When the car is in neutral you can give it gas and there's no sign of bogging down, it's only there when you actually drive it.

    Could these things be related?

    Bogging down, ticking, slight unevenness in idle?


    My main question would be, what would be a good start to have a look at these things?


    Any help is as always greatly appreciated
     
  2. 73Electra 225

    73Electra 225 Well-Known Member

    Exhaust leaks can sound a lot like a ticking. With the engine cold, start it up and run your hand around where the manifolds bolt up. If there is a leak, you will feel the exhaust hitting your hand.
     
  3. RagTop69GS

    RagTop69GS Cruzin Motown ~Top Down

    The bog sound like it could be a bad accelerator pump. Look down the carb and snap open the throttle and watch for 2 steady shots of gas in the primaries (do this with the engine off so you don't get burnt :af: in case of a backfire) If it's a weak squirt or none then replace the accelerator pump.

    To help locate the tick cut a length of broom stick about 2' long and use it to help find the tick. you could also use a long socket extention. Put one end to your ear and the other end on different points on the engine till you find the source/area of the noise.
     
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    That sounds like a vacuum leak to me. Check all your vacuum hoses for leaks/disconnected. Then check the carb to manifold gasket by spraying some gumout around it with the engine running.
     
  5. EEE

    EEE Straight out of lo-cash!

    Many thanks for the help, I'll be at it as soon as today's planned axle swap is completed.
     

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