[GMCnet] Very noisy engine [message #276071] |
Fri, 17 April 2015 12:51 |
Advanced Concept Ener
Messages: 112 Registered: December 2014
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Senior Member |
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Lost a Buick front wheel drive engine to a transmission that kept shifting up and down. Believe it was a 700r4 trans. Download of data showed a bad sensor that was causing it. You couldn't really feel it but it was happening. Every time you load and unload the engine the change in torque causes lateral forces on the crank. Keep bouncing the shaft against the thrust bearing and you get wear and failures. Happens with pumps, compressors, turbines and all rotating equipment .
Jon Darcy ACES
North Jersey 76 stretch, flares, 4 bag, Alcoa's, bunkhouse,MAC Dash
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