knock knock knock. who there? - Technical Troubleshooting discussion in Forkliftaction's forums

Cat Lift Trucks (& Caterpillar) FGC15:
knock knock knock. who there?

Forklift knocking replaced the plugs, wires, distributor cap, and rotor button. but its knocking pulled one plug at a time the knocking didnt start. Im thinking something mechanical a push rod. its a Mitsubishi motor.

Model#FGC15
Serial# AF81B-52287

Posted 14 Apr 2015 00:00
Discussion started by craig_k
Ohio, United States

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Does the noise change if trans put in gear? If the tilt cyl's are dead headed, does the noise change?

Posted 14 Apr 2015 10:22
Reply by bbforks
Pennsylvania, United States

bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!

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Just had a DP35K in the shop same issue. Found the Flexplate and Torque Converters bad. Harmonics vibrate though the engine.

Also seen bad u-joints in shaft going to Hyd pump..

some things to check

Posted 14 Apr 2015 04:02
Reply by Prentice
Ontario, Canada

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