absolutely frustrated

Discussion in 'General Maverick/Comet' started by BigDog41364, Jun 9, 2015.

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  1. BigDog41364

    BigDog41364 Member

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    I have this ticking noise in the top end of the motor I cant figure out what it is, its driving me crazy. its the main reason I rebuilt the motor this winter while I was doing the MII install. it sounds like one lifter is ticking. here is what I done so far.

    new crank, rod and main bearings
    new rings
    new cam bearings
    new timing chain
    new oil pump
    new crane anti pump up lifters
    new crane push rods
    removed comp cam roller tip rocker arms and replaced with stock style rocker arms.
    adjusted the pre load from 1/2 turn to 2 1/2 turns no difference in tick
    adjusted guide plates
    beat my head on concrete floor till passing out ...still ticking
    it has 50 psi oil pressure at idle 60 psi driving
    have plenty of oil to the rocker arms

    Any ideas?
     
    BigDog41364, Jun 9, 2015
    #1
  2. mercgt73

    mercgt73 Member

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    Exhaust leak at the manifold?

    Sometimes you can take a peice of vacuum line and hold one end to you ear and use the other end to try and find the noise. When you get close, it should get louder.
     
    mercgt73, Jun 9, 2015
    #2
    Crazy Larry, 71gold and Krazy Comet like this.
  3. junrai

    junrai Member

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    that could be a very good place to start it doesnt cost anything to check the exhaust gaskets. you could even remove the manifolds and double check the gasket is in good shape
    with all of that work to your front end I hope you have headers
     
    junrai, Jun 9, 2015
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  4. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    Is the tick there with the valve cover off? I've seen a rocker tapping on a too close spot in the cover.

    Makes you crazy chasing down this stuff ................ :49:
     
    Acornridgeman, Jun 9, 2015
    #4
  5. Krazy Comet

    Krazy Comet Tom

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    First thing I'd is try to locate the noise to a specific area... No use to look at dist if it's in rear of engine...
     
    Krazy Comet, Jun 9, 2015
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  6. rlbriggs7212

    rlbriggs7212 Member

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    I had a tick noise in a 302 that wound up being the fuel pump. I verified it after I was towed off the Dumbarton bridge in Newark Ca, during rush hour traffic!
    RLB
     
    rlbriggs7212, Jun 9, 2015
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  7. OLD GOOSE

    OLD GOOSE Member

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    did you replace the valve springs or check them
     
    OLD GOOSE, Jun 9, 2015
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  8. Rasit

    Rasit Member

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    Rasit, Jun 9, 2015
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  9. junrai

    junrai Member

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    never even seen such a thing before pretty good idea and not super expensive
     
    junrai, Jun 10, 2015
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  10. bkcha

    bkcha Member

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    From the list i dont see new cam??
     
    bkcha, Jun 10, 2015
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  11. 7D2 Grabber

    7D2 Grabber Member

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    Does the tick increase with rpm? Does it go away at any point? If it does increase with rpm, does the tick match the rate of increase in rpm?
     
    7D2 Grabber, Jun 10, 2015
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  12. Bryant

    Bryant forgot more than learned

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    check for exhaust leaks with stethoscope or a hose to your ear. i suspect you have done this but have to suggest it till you verify its been done.
    check for leaks around the spark plugs in the same method as above.
    the fuel pump suggestion above is good. it has a spring in the pump to keep the arm on the cam. the spring can pop out and cause a tick noise in the motor.
    the valve springs could have problem. they rotate in their seats. it may have an edge its clicking on.
    could it be a bad spark plug wire that is arcing?
    what heads do you have?
    using a mechanics stethoscope should allow you to zero in on the noise. i will use the metal probe they come with to see zero in on the noise if its in the motor. i will remove the probe to listen for exhaust leaks, vacuum leaks, and even arcing plug wires.
    can you make a recording of the noise and post it?
     
    Bryant, Jun 10, 2015
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  13. 71gold

    71gold Frank Cooper Supporting Member

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    I use...heater hose...:thumbs2:
     
    71gold, Jun 10, 2015
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  14. BigDog41364

    BigDog41364 Member

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    Electric fuel pump
     
    BigDog41364, Jun 10, 2015
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  15. BigDog41364

    BigDog41364 Member

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    On or off same noise
     
    BigDog41364, Jun 10, 2015
    #15
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