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The symptoms of a 3 bearing crank failure?

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The symptoms of a 3 bearing crank failure?
Chris KC Offline
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Joined: Aug 2017 Posts: 3,217 Threads: 100
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Location: Darkest Bedfordshire
#5
08-11-2018, 02:09 PM
My one experience consisted of putting a big end through the side of the crankcase at about 50 or 60 mph on the M5. When later inspected the crankshaft showed classic signs of fatigue crack growth (so much so that my university workshop wanted it as an exemplar), implying it had been hanging on by a thread for quite a while. It was many years ago but I'm afraid I didn't notice any sign that it was coming.

It does sound like something is awry and it might be a good time to investigate. Do please let us know the outcome.
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RE: The symptoms of a 3 bearing crank failure? - by Chris KC - 08-11-2018, 02:09 PM

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