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03-11-2024, 08:33 PM
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#1 |
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Registered User
Join Date: Sep 2023
Location: Santa Rosa Beach FL
Posts: 1
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64 C10 Engine Ticking Sound Help
I started up my truck the other day and it has this awful ticking sound coming from the engine. I think it is part of the valvetrain but I am not sure. Any ideas of what it could be? Engine is a 1978 250 inline six.
Video of engine idling https://www.youtube.com/shorts/hxsebdoDo-Y |
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03-11-2024, 08:59 PM
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#2 |
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Active Member
 
Join Date: Sep 2023
Location: randolph va
Posts: 123
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Re: 64 C10 Engine Ticking Sound Help
sounds like a rocker arm ticking, pull the valve cover and look to see if you have bent pushrod, may just need adjusting. Did it start suddenly or get progressive louder
__________________
Old dogs and children and watermelon wine 
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03-11-2024, 10:56 PM
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#3 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,515
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Re: 64 C10 Engine Ticking Sound Help
Sounds like a collapsed lifter!
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03-11-2024, 10:57 PM
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#4 |
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Senior Member
Join Date: Mar 2006
Location: Pittsburgh, PA
Posts: 241
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Re: 64 C10 Engine Ticking Sound Help
You can pull the valve cover and run the engine without making too much of an oil mess. I’d pull the valve cover and look for loose rockers or stuck valves. Sometime a good dose of Marvel Mystery oil added to engine oil will loosen up a stuck lifter. Does it look clean or dirty if you look in the oil filler hole?
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