2007 f550 wont crank

bulldog77

bulldog77

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Joined
Feb 12, 2010
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509
We had one of the company 550s come in with blown turbo seals. The truck ran but ran like crap when we got it off the trailer. We rebuilt the turbo and replaced the oil cooler. Now the truck will only crank to a certain spot and acts like its hitting something. Stuck a bore scope in the injector bores and all the pistons look good and looks like nothing has hit them. What else can I check before pulling the oil pan?
 
Does it act like engine is locked up? Are you cranking it with injectors out? If not pull all glow plugs and try again. And make sure it isn't a bad starter had that happen before
 
Found busted chunk of exhaust valve in driver side head and passenger side exhaust manifold full of fuel.


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