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55charliebird
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 192,
Visits: 39.2K
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Why would a 292 stock "pop" out a pushrod? Had to fish it out of the valley.
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oldcarmark
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Group: Forum Members
Last Active: 3 hours ago
Posts: 3.7K,
Visits: 32.4K
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Sticky Valve, Excess Lash, Worn Rocker, Worn Pushrod End.
 
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miker
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Group: Forum Members
Last Active: 5 days ago
Posts: 1.8K,
Visits: 190.5K
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Or, you need to shift sooner. Threw more than one from floating the valves.
miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ
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DryLakesRacer
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Group: Forum Members
Last Active: Last Year
Posts: 1.7K,
Visits: 340.0K
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Happened to me once too. No reason why, did not hurt anything either.
56 Vic, B'Ville 200 MPH Club Member, So Cal.
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GREENBIRD56
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Group: Forum Members
Last Active: Last Year
Posts: 1.7K,
Visits: 102.7K
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Unleaded gas cut with 10% alcohol - dry valve guides.
Steve Metzger Tucson, Arizona
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Tedster
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Group: Forum Members
Last Active: 3 Years Ago
Posts: 513,
Visits: 153.3K
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4 fl. oz ratio MMO per 10 gallons gasoline is good insurance against stuck lifters, valves, rings, etc. At least, that's the story. It certainly can't hurt anything.
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55charliebird
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 192,
Visits: 39.2K
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It occurred while cranking. I heard loud clink/snapping sound. I think it was stuck valve. Sprayed all springs with Marvel. Seems OK.
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55charliebird
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 192,
Visits: 39.2K
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I'll try Marvel Mystery in gas tank. Seems ok, only happened once.
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charliemccraney
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Group: Moderators
Last Active: 5 hours ago
Posts: 6.1K,
Visits: 441.6K
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How old was the gas in the tank when it last ran?
Lawrenceville, GA
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Ted
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Group: Administrators
Last Active: 7 minutes ago
Posts: 7.4K,
Visits: 205.0K
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55charliebird (5/15/2018)
It occurred while cranking. I heard loud clink/snapping sound. I think it was stuck valve. Sprayed all springs with Marvel. Seems OK.In your case, odds are in favor of the pushrod not being properly seated in the ‘divot’ in the top of the lifter; the pushrod simply fell off the top edge of the lifter when you attempted to start the engine. A sticking valve will continue to give problems after this. If you have 3 month or older fuel in the gas tank, then the potential is there for the intake valves to stick within their guides and especially when the guides are new. Old fuel will allow the engine to start up but once it cools and a restart is attempted, the old fuel does leave a gummy residue (varnish) in the guides which will stick the valves when attempting to restart the engine. I’ve seen all eight intake pushrods bend at the same time when this occurs but always happens after the first run in.
  Lorena, Texas (South of Waco)
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