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Locked engine

Old February 11th, 2019, 7:21 PM
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Default Locked engine

someone please help me. I just replaced all of the gaskets on my 292. After I put it together it turned over a while then slam! No longer turns over fully. It moves freely back and forth but stops suddenly at a point. So yeah Iíve spent well over three days on it and now Iím screwed. Hereís a link to the video.
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Old February 11th, 2019, 8:21 PM
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I see the water pump isn't the issue, what about the alternator? Can you bar it over manually with a break over, and socket?
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Old February 11th, 2019, 8:32 PM
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Take the rockers off and see if it still does it.
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Old February 11th, 2019, 10:36 PM
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Your cam is out of time with your crank gear. You have an exhaust valve that isn't closed and a piston is hitting it. I think you are going to have to pull the head, because you tried to use the starter on it, and that would have bent a valve for sure.
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Old February 12th, 2019, 12:12 AM
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Originally Posted by oldchevy View Post
Take the rockers off and see if it still does it.
ok thanks for the advice! Iíll give it a try tomorrow. I notice you comment on a lot of threads I do. Thanks! I appreciate the time and effort!
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Old February 12th, 2019, 12:14 AM
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Originally Posted by Kazoocruiser View Post
Your cam is out of time with your crank gear. You have an exhaust valve that isn't closed and a piston is hitting it. I think you are going to have to pull the head, because you tried to use the starter on it, and that would have bent a valve for sure.
only thing is I did zero timing adjustments and never touched the cam. Maybe something went wrong? But I would like to say it ran perfect prior to the gasket changes.
Also thanks for the advice! Much appreciated!
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Old February 12th, 2019, 12:15 AM
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Originally Posted by kevinkpk View Post
I see the water pump isn't the issue, what about the alternator? Can you bar it over manually with a break over, and socket?
ok so the alternator is all good. Something is locking in the engine. Itís not bottom end as far as I know. I took of the oil pan and no signs of damage.
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Old February 12th, 2019, 7:53 AM
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As oldchevy suggested, and I agree, roll the rocker arms off the rods, you can isolate top to bottom of the engine being the problem. Since you removed the oil pan, try rotating the crank shaft by hand.I've not seen this issue in forever, but is it possible the oil pump lost it's prime, and since you are there, take the pump, and reprime it just to say you did. Sometimes if an engine has sat for long periods, the oil pump will not prime when first cranked., good luck!
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Old February 12th, 2019, 12:28 PM
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Originally Posted by kevinkpk View Post
As oldchevy suggested, and I agree, roll the rocker arms off the rods, you can isolate top to bottom of the engine being the problem. Since you removed the oil pan, try rotating the crank shaft by hand.I've not seen this issue in forever, but is it possible the oil pump lost it's prime, and since you are there, take the pump, and reprime it just to say you did. Sometimes if an engine has sat for long periods, the oil pump will not prime when first cranked., good luck!
it was a bolt in one of the cylinders.
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Old February 12th, 2019, 12:49 PM
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That's a big ouch! Don't think you can use that one again!!
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