lml@lancaironline.net Mailing List Archive

I don't see any relationship. I run mine 100% of the time to power the essential bus batteries. The bearing failure would not be affected by power. The broken leads are all at handling points where some worker has tweaked the wire. I believe the accessory drive spins at 150% of engine rpm so it would be seeing about 3500 rpm, which is only half the speed of the primary alternator. It does not appear to be an overworked device at that speed and 20 amps. Paul On 2012-05-24, at 10:43, Colyn Case <colyncase@earthlink.net> wrote: > I'll add it to my list. > Have you figured out if there is a relationship to the % of time the standby alternator is energized and how soon it fails? > I've been running mine all the time. > > > On May 23, 2012, at 1:17 PM, Paul Miller wrote: > > Colyn: No need. Found the open circuit winding while pondering how the stator could fail inside that big hunk of metal. See picture for third broken stator winding. I can fix those breaks. Brushes and bearings and stators are readily available, as you suggest, for these units as they do power a number of applications from Toyota to Kubota. I believe they are available domestically (N.A.). If it were my shop, I'd implement a 500 hour recommended inspection just like the magnetos. They go in the shop, get cleaned up, parts get checked and replaced as necessary and everyone is happy. That's a lot better than in-plane failure. The shop gets revenue, better understanding of the weak points and avoids do-it-yourselfers like me taking things apart. I'd be very happy to have Bill go through this thing every 500 hours and replace what needs replacing and I have written him with that suggestion. Thanks for the idea. > > Paul > > On 2012-05-23, at 11:17 AM, Colyn Case wrote: > >> Paul, >> >> My understanding: Bill sources the parts in China or Japan, balances everything and maybe tweaks a couple other things, and then puts his name on it. Given the stator doesn't need to be balanced, could you find the overseas source and solve your problem that way? >> >> Colyn >> > <IMG_0053.jpeg>-- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html > > > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html