[Mgs] Electrical Saga part 3 of 3

[Charley & Peggy Robinson]

Sounds to me like you could have saved no end of trouble at the 
beginning by replacing the entire generator instead of just the armature.

CR
On 7/25/2012 2:59 PM, Max Heim wrote:
> A classic illustration of the maxim "just because you found a problem, that
> doesn't mean it's the only problem".
>
> --
>
> Max Heim
> '66 MGB GHN3L76149
> If you're near Menlo Park, CA,
> it's the primer red one with chrome wires
>
>
> on 7/25/12 12:25 PM, dwoerpel at dwoerpel at wi.net wrote:
>
>> PART 3
>>
>> After having the generator checked at the two shops again and declared
>> working, I ran tests on the car and was getting very low readings, like
>> 2.1 v @ 1800 rpms.Worked in the shop but not on the car.
>>
>> I called, my now good friend Rick Ewald, who sat down in a grocery store
>> with a cup of coffee for an hour (many thanks to your wife for being
>> patient!) and we ran a bunch of tests over the phone.No success but(!)
>> Rick, even though I had the generator apart several times I dismantled
>> it again.No, the through-bolts were not grounding out the field. But...
>>
>> Remember what started all this?Because the cutout stayed closed, that
>> allowed battery voltage to the generator which then tried to be a motor
>> but couldn't turn because the fan belt prevented the pulley from turning
>> so it got hot and threw solder and MELTED the harness.
>>
>> I thought I'd look inside the generator one last time.Looking carefully
>> at the end plate I noticed the nylon insulation around the "D" terminal
>> was melted and I could wiggle the terminal which caused the brush cage
>> to wiggle.It was very close to grounding fully to the case. Wow, didn't
>> think of that.Another tidbit to file away in the memory bank (read:
>> computer; my personal memory bank can no longer be trusted...A.D.D. can
>> be...Oh, look! A Toad...a problem.).
>>
>> I took the end plate to Jeff Johnson at Alstar Company Inc. in Hales
>> Corners, WI (414.427.7991) who made some new insulators (I could have
>> done it but was leaving for a week).It looks original and cranked out
>> 19.2v on startup @1800 rpms.Light is out, comes on when at idle,
>> flickers as revs increase and goes out around 1200-1400 rpms. Standing
>> voltage and running voltage under load all check out at ~12.4v.Next is a
>> test drive but that will have to wait until I return from Alaska (No
>> Barney, I'm not driving it to Alaska!).
>>
>> So many thanks to all who helped:Barney Gaylord, Rick Ewald, Don Zubrod,
>> Dave Spearing, Jeff Johnson, John (at Maxim Rebuilders in Burlington WI
>> 262.763.9441) and everyone else whose ear I gnawed on getting scraps of
>> info.
>>
>> Hope you never run into this problem!Fingers crossed.  "One never knows
>> the depth of the well by the length of the handle on the pump"...my
>> Father always said this.
>>
>>
>> /Safety Fast!/
>>
>>
>> Dave W
>> 59 :{)
>> 59 MGA 1500
>> Burlington WI
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