ELENator Posted July 28, 2010 Share Posted July 28, 2010 This bird has had this problem come back a few times - not repeat/recur though. Basically, the props wont sync with No. 3 selected as master. Repalced valve housing, no fix. Repalced synchrophaser, no fix. Shot wires on sync rack - all are good. Shot all pins on all plugs on valve housing, tach gen, and pulse gen, and all are good. The last time this happened we found wires in the wrong spots on the terminal board on the electrical rack (TB1C, I believe). After we fixed that, it op checked good. This was a month or two ago. Now the problem has returned. Engine shop replaced the syncrophaser and now they're telling us the problem has gotten worse - it won't sync at all with either prop selected. Obviously the first thing to do is check and see if it's a bad part out of supply. But in every case we've had this issue, the system tests OK with the sync tester set. Anyone got any ideas? Quote Link to comment Share on other sites More sharing options...
steve haigler Posted July 30, 2010 Share Posted July 30, 2010 Try rep. the dashpot in prop housing assy. clean up cannon plug. go from there. Steve Quote Link to comment Share on other sites More sharing options...
tusker Posted August 1, 2010 Share Posted August 1, 2010 Yes Sir!!!.....if #2 selected as a master and everything works fine so I suppose we could like pin point the trail on #3 or the sych box in general. . What do you think you guys!!! Quote Link to comment Share on other sites More sharing options...
Mcmuffin07 Posted December 29, 2012 Share Posted December 29, 2012 do they just not react at all, or is there an improper reaction? if they're reacting somehow just not really syncing up it could be a pulse gen issue but then if it's on #2 AND #3 it's probly the sync itself or maybe the switch is bad Quote Link to comment Share on other sites More sharing options...
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