copemech Posted November 29, 2013 Share Posted November 29, 2013 Check the bearing on the other end of the countershaft where the chain rides. If it were bad the movement could force the idler into the mainshaft gear. Quote Link to comment Share on other sites More sharing options...
slik Posted November 29, 2013 Author Share Posted November 29, 2013 Thank you copemech . The bearing is ok , no movement . I think , i have to open the cases . Quote Link to comment Share on other sites More sharing options...
tltel Posted November 29, 2013 Share Posted November 29, 2013 can you turn the shafts freely? With chain removed. If something is bent you should see it when you rotate it, could even be crank pin slipped. Take plug out and spin crankshaft too. TLTEL Quote Link to comment Share on other sites More sharing options...
steve_earle Posted November 30, 2013 Share Posted November 30, 2013 Hi, I may be guessing here but the wear in the teeth is irregular like somthing is not running true or there is play somewhere. Could it be the backplate on the clutch, the bit where the rivets are, is bent or warped causing the gear to not run true? Quote Link to comment Share on other sites More sharing options...
slik Posted December 1, 2013 Author Share Posted December 1, 2013 The backplate on the clutch is not bent or warped . Thats my realy problem , everything looks ok , and my engineer say that the problem is the quality of the gears . Thanks again for all the answers , its the only help i have . Quote Link to comment Share on other sites More sharing options...
charlie chitlins Posted December 9, 2013 Share Posted December 9, 2013 Very mysterious! Can you put a dial indicator on the mainshaft to be sure it is running straight? Quote Link to comment Share on other sites More sharing options...
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