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Posted: Mon Jul 13, 2009 7:57 am
by Amskeptic
dingo wrote:Still having overcharging issues, so this points to internal grounding gone haywire.
Is there an actual physical wire from the alternator to ground? The wiring schematic shows one, but I have not located it so I don't know if it exists or if they are just assuming that the engine is grounded to the chassis.
Alternator is grounded through the mounting bracket, and a fine ground it is. Keep us posted on your resolution. Was the spare a real OEM used alternator, or a "rebuilt"?
Colin
Posted: Mon Jul 13, 2009 9:14 am
by dingo
Amskeptic wrote:dingo wrote:Still having overcharging issues, so this points to internal grounding gone haywire.
Is there an actual physical wire from the alternator to ground? The wiring schematic shows one, but I have not located it so I don't know if it exists or if they are just assuming that the engine is grounded to the chassis.
Alternator is grounded through the mounting bracket, and a fine ground it is. Keep us posted on your resolution. Was the spare a real OEM used alternator, or a "rebuilt"?
Colin
O.K. Thanks. Well it must be a glitch with the internal grounding between the brush and the case/bracket. It's an intermittent issue, so maybe moisture plays a role?
Spare alternator? Just another junkyard find. It's in pieces and the coastal fog has intruded on the bearings.
I doubt any of them are OEM at this stage. A guy in the biz told me that nothing is rebuilt. It is sandblasted and tested, and then either goes in the 'rebuilt' pile or the junk pile.