Old Shep wrote:
I didn't want to mix questions (from the SNJ/T6 thread)....We are also working on a Mustang here. It seems to have developed alternator/voltage regulator problems. The airplane is twenty hours out of restoration...everything looks good, but it burned up a voltage regulator, which we replaced, only to discover that the alternator was bad, which then burned up the second voltage regulator. That has been replaced, but we are now in a bit of a quandry wondering if our problem is a wiring one that is causing the failures. A mechanic who worked on the airplane prior to restoration said that many Mustang operators don't like using alternators: the old generator is what they prefer. Any suggestions on this issue would be appreciated.
Old Shep
We have the Jasco Alternator and get 200-300 hours from them typically.
I would ring out the schematic and check wiring, check the balance resistor
Also alternator and voltage regulator should both be checked any time one shows a problem. I recently changed one of each on BE and had one set sent out for O/H. Jasco does this at no charge but takes some time. I don't think there is any approved repair avail other than OEM. They almost always say it needs to be O/Hed when I have sent them but one time it only needed a rubber coupling they changed at N/C.
These are an item, whether gen or alt, that a spare is a good thing to have on the shelf.