Yanmar 3HM35F Transmission backlash

Sep 27, 2006
39
Pearson 36-2 Alameda
Does anyone know what the proper backlash is on this transmission? I get a knocking sound after I’ve been running for a while. Tried checking everything. Wondering if gears are worn. I seem to have several degrees measured at the output. I was also going to check if shift lever engagement is within spec.
 
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