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Old 08-08-2009, 07:46 PM
otto huber's Avatar
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If an engine seizes, what else get's destroyed?

I'll be looking at a 300DT with a seized engine. I've got a line on a 617 long block. I was thinking of transferring over all the accessories from the seized engine, but don't know what to expect from the injection pump, turbo and vacuum pump that is on the seized engine. Thanks

'81 300SD
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Old 08-08-2009, 07:48 PM
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It is likely that the only damage will be to your wallet. However, you need to find out what caused the engine to seize (sand in the oil?). Remember that the IP, turbo, and the vacuum pump are lubricated with engine oil.

Don't forget to thoroughly clean out the oil cooler and related hoses.


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Old 08-08-2009, 08:12 PM
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The oil pump failed.
'81 300SD
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Old 08-08-2009, 08:28 PM
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The only way you will ever know is exploratory surgery. This is true with any engine rebuild. It's just impossible to know without disassembly, inspection and measurement of everything.

Good luck,
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Old 08-08-2009, 09:44 PM
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Location: Northeast Indiana
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x2 on Larry Bible's comment.

Best case is a couple of rod-bearings at idle, turn the crank and sometimes save the rods, ... worst case if a camshaft seized and started it all the pistons crashed into valves plush the head can be trashed, crank can be damaged and in severe cases twisted slightly (affects timing) and rods trashed.

Gone to the dark side

- Jeff
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Old 08-08-2009, 10:00 PM
aaa aaa is offline
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Not much else gets specifically destroyed by the engine seizing, but you have to worry about what made it seize in the first place (lack of oil). So how long was it running like that? I'd be most worried about the turbo.

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