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Topic: crank failure - update with pictures (Read 1081 times)
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illfish
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Good point moparteacher. I would think the front main bearing would have increased wear in the direction towards the alternator?
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d55dave
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Stopped by the machine shop tonight - he has my new forged crank as well as most of the other parts I need. I had to pull one head to take out a piston assembly, the balancer needs one piston and rod to weigh for the balancing - something to do with needing to know the bob weight to balance the new crank.
Hopefully should be up and running in two weeks. The eagle forged crank looks great. I havent seen a credit yet but it sounds like Eagle is going to credit me the cost of the cast crank towards the forged.
Ill keep you posted.
Good thought on the belts - I am pretty sure they were not overly tight. If you think about it when the engine is spinning the timing chain is also pulling up on the front of the crank. I find it hard to believe that overtightened belts would cause a crank failure behind the front main, but who knows?
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flyboy01
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Not pointing a finger, but over-tightened belts are known to break off cranks.
I would have thought that it would have broken forward of the main. Also, you would expect that an aftermarket crank would have more strength than stock too. |
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68_Val_Sedan
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glad to hear it ... keep us posted on your track times ....
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67 dart 270 presently a /6 but destined to be a  ,68 Chrysler 300 Convertible 440 auto |
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tnplumber
Full Member
 Offline
Posts: 264
BigBlockDart.Com
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Glad everything worked out for you. That could have been very costly. Hope it was just a fluke.
Scott
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