Pic of my broken crankshaft - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 03-15-2007
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Pic of my broken crankshaft

Here is a pic of my crank that snapped in 2 one morning while starting it up. Was not pretty. I now have a used motor in the truck with less miles, so it's not too bad. Never seen nothing like it.





The rust you see is just from sitting in the bed of the truck for a few weeks.
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Old 03-15-2007
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ahh well that sucks
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Old 03-15-2007
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I've heard of happening before on the 4.0L OHV, never saw a pic though.
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Old 03-15-2007
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well thats pretty impressive
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Old 03-15-2007
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Wow
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Old 03-15-2007
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Crankshafts LOVE to break at the dampner/keyway area, it's the weakest place on a crank. I have replaced a few in John Deere diesel engine. They beefed that area up just for that reason. Sorry man!
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Old 03-15-2007
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the shaft went before the key?
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Old 03-15-2007
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That'll ruin your day.
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Old 03-15-2007
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Thats purty
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Old 03-15-2007
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Hard to believe but yes, a crank will break and not the key. Wish I could explain it, I'm sure someone here can. Picture this. On a new combine, the crank breaks at the dampner and it goes flying. No fan belt anymore, thus engine temp goes way up. The rest of the engine burns down. I replace the entire engine. Won't forget that one. WARRANTY!!!!!!!
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Old 03-15-2007
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I had one break like that,in a 96 2.5 ranger 2wd,i was told it was like that from the factory.
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Old 03-16-2007
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Quote:
Originally Posted by Trigger01
That'll ruin your day.
More like my month.
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Old 03-16-2007
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Just my $0.02, but it looks like that thing got purty hot at some point
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Old 03-16-2007
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Got one of them myself!
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Old 03-17-2007
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lol too much Horse Power!


JOSH
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