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Old 07-02-2024, 12:00 AM
Flashflood Flashflood is offline
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Default 2nd engine down

77 Pontiac lemans with original a 350 oldsmobile. I yanked that out and found a 403 at my local engine mechanic. He rebuilt it but it took some time for me to stab the engine in. Plus $$$ obviously. In the time it took to try get parts and everything. It locked itself. So it's stuck. Will keep you posted!!

Rip engine #2

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Old 07-02-2024, 05:37 PM
694.1 694.1 is offline
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Maye some kind of obstruction?
A well oiled fresh build would take some serious neglect to be unable to be turned. Try the flywheel end.

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Old 07-02-2024, 06:29 PM
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Sirrotica Sirrotica is offline
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Even if the engine is stuck due to rust, it likely can be saturated with some penetrant for a week or so, then broken free by applying pressure on the flywheel side, as already suggested.

You could also get a inexpensive bore scope to look into each cylinder to see what you're dealing with too.

Unless the engine was filled with water, I doubt all is lost.

I've seen some engines brought back that were filled with water, that run no different than one that hasn't been frozen up ever.


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Old 07-07-2024, 12:30 PM
Flashflood Flashflood is offline
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A little bit of update the machanic that rebuilt the engine suggested the same thing. Or also that it may be the torque converter, not stab in correctly, so I have to pull the engine back out and see if I have the third click. Here's hoping!

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