CK25 engine problem

   / CK25 engine problem
  • Thread Starter
#21  
IMG_1252.JPGFinally got into the gear case and the cam gear is a disaster. It is like this all the way around the entire can gear. One tooth is broken the idler gear as well. The crank gear shows noticeable wear from the oil pump.

If anyone has an idea how this could happen, I’d sure like to know so I can avoid similar things in the future.
 
   / CK25 engine problem #22  
WOW.. I don't have an answer but I find it odd that each break has the same shape.. odd indeed..
 
   / CK25 engine problem #23  
Don't just replace those gears; check the front end bearings for damage. Check the shafts for possible fore-aft movement. With luck, the damage will be limited to the gear case (pistons, crank, camshafts, and valves OK). Can't tell the cause but it looks like a gear may have moved (forward or aft) such that all the stress was on the back part of the teeth, breaking off parts of teeth.
 

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