The Craftmans Shop > New from Old
Puma / Dorman 6LE / MacFarlane B46B / 110 kVA Generator Resurrection
Sea.dog:
H,M,L on the schematic - High, Medium and Low charge rate perhaps?
awemawson:
That was my assumption, but I'm hardly an expert on these things. But looking at the schematic it would have that effect :scratch:
Does anyone recognise the make of that charging alternator?
Slight 'undoing' progress in that the bolt that passes though the tubular bit of the alternator and acts as a pivot for belt tightening moves a bit (maybe 10 degrees) in the threaded hole that it screws into, but is firmly jammed in the tube itself. More Plusgas added and I may be able to tickle it with a propane flame tomorrow - needs care not to fry things !
awemawson:
Sea.Dog I found this image on a Rolls Royce forum where someone has opened up one of these regulators - but if you look at the die cast lettering on the case it confirms our assumption :thumbup:
Sea.dog:
We can feel a little smug then :med:
awemawson:
Today I was determined to get the charging alternator off and identify it. The pivot bolt would unscrew from it's bracket but was stuck absolutely solid in the bore in the alternator itself.
In the end I had to remove the adaptor bracket from the side of the engine and with it in the vice apply rather a lot of violence before in the end it yielded.
Having removed the bracket and got the alternator out a plate was uncovered revealing that it is a CAV AC5A24-3 - now these are still available as they are used on Rolls Royce's and Bentley's but for rather a lot of beer tokens :bugeye:
So I visited SAE services in Ore where Steve runs a one man band auto electrics shop out of a double garage behind the shops. Having gone through his stock of new alternators trying to find something physically compatible he then remembered that he actually had an old AC5A24-3 tucked away that worked but had knackered bearings - pictures of the Queen changed hands and my task this afternoon is to dismantle it and identify the bearings and order them up.
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