john, i repalced bearings in 90 amp alternator some years ago, timken i think, i wrote part number down in manual. the bearings were not hard to find, local industrial supply house. what was an issue was the rear bearing fitment into housing. it was loose and i had to shim. If you had a lathe you could machine housing and a sleeve and use different bearing. as to the electrics, brushes or of course available, diodes too (i think). re winding may not be.
alistair '86 syncro 7 passenger '82 westy, diesel converted to gas in '94 http://www.members.shaw.ca/albell/ http://shufti.wordpress.com On 17-Nov-09, at 1:16 PM, John Rodgers wrote: I have three alternators - 4 including the one on my daily driver (it works) and those three are dead. They turn freely, excess play, smooth, no sounds from the bearings - sound perfectly good - but perfectly dead. Two of these are the typical Bosch units on the Vanagons that get rebuilt but one is a a Beck/Arnly rebuild. Are parts available for these alternators? When active in Aviation along time ago - Cessna and others switched over to alternators that look pretty much like - and mount just like - these Bosch and Beck/Arnly units. Mount on a bracket - belt driven. The ones that came on the Cessna aircraft had "Ford" marked on them. Back then, I could rebuild the alternators in the shop. Didn't take much. Almost always if the alternator failed before the engine reached overhaul time - the alternator failure was the result of rectifier failure or brush failure. Any decent A&P Mechanic could fix that and send the aircraft owner on his way in short order. So, my question is - Are parts available for these alternators on the Vanagons? Most likely the problem is the same one as on the airplanes - if the bearings are still good. Anyone know of sources? BTW - in my experience the Beck/Arnly rebuilds hold up and last a lot longer. Of course the prices is greater for the Beck/Arnly rebuild too. Finally - the back of a Beck/Arnly rebuild has the same components as the Bosch but there is a third little do-dad and I haven't decided what that is - voltage regular, filter, or what. If anyone knows a parts source I sure would appreciate hearing of it.\ Thanks -- John Rodgers Clayartist and Moldmaker 88'GL VW Bus Driver Chelsea, AL Http://www.moldhaus.com |
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