Engine Cold start valves tapping!

Discussion in 'Classic Mustang Specific Tech' started by Rick66embglcovt, Dec 24, 2012.


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Valves tapping for a few seconds during cold start!

Poll closed Dec 27, 2012.
  1. Adding supplement to oil?

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  2. This happens only on initial start...then clears right up!

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  1. Rick66embglcovt

    Rick66embglcovt Member

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    My 289 A code - valves tap for a moment on a cold start when the car has been sitting for a week or more! Is this normal ? And if not would adding Marvel Mystery or anything else help with this problem?
     
    #1
  2. jetmech807

    jetmech807 Mustang Master

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    I've had several old v8's from various manufactureres. They all ticked a bit at start up. Lifters bleed down and need to pump up for a sec on start up.

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  3. rbohm

    rbohm Founding Member

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    after a long rest, the lifters have bled down, and need to pump back up before they quite down. i have also had many engines from different manufacturers that did the same thing. sometimes ford engines come from the factory with a slight valve tick as standard equipment.
     
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  4. jetmech807

    jetmech807 Mustang Master

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    I don't think Ford built a 300 I-6 that didn't tick.

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