[FC] electrical short problem

[Ken Hand]

The first thing I would check is the alternator. It sounds like there may be a diode bad and letting a reverse current through the alternator.

Try disconnecting the the red wire or positive wire going to the alternator. If the battery stays up then you just found your problem. If the battery goes dead still, you will have to start eliminating systems until you find where the draw is. While we are on the alternator, a quick check is touch the positive wire to the alternator terminal, there should be NO spark. That sometimes is a quick check but not a real positive check.


Ken Hand
248-613-8586
www.corvairmechanic.com


-----Original Message-----
From: billvl at vbe.com
To: Ken Hand <vairmech at aol.com>
Cc: corvanatics at corvair.org
Sent: Mon, 4 May 2009 9:42 pm
Subject: electrical short problem


Hello,
While we are on battery's.? I am working on a 61 truck.? I have installed a late model engine with an alternator.? I have a late model wiring harness and late model voltage regulator.? The battery always goes dead.? The only way I can solve the problem is I disconnect the battery cable to the positive terminal when the truck is not being driven? This solves the problem but does not correct it.? Any ideas on what might be causing it?
Bill Van Lieshout
Oshkosh, Wi




> ?? Well, you are mostly correct JR. The battery in question is a group 51 
> battery and you want the "R" desination for the reversed terminals so they 
> are oriented in the correct manner. If you go into a store and ask for a 
> 51R battery you should come up with the correct battery. 
> ??? Still do check the orientation of the terminals so they are in the 
> correct position. They shoud be the postive on the forward side and on the 
> engine side of the battery, the negative will be on the other end in the 
> same manner. if the terminals are on the side of the battery away from the 
> engine, the cables will not reach. Not even if you turn the battery 
> around. 
> 
> 
> Ken Hand 
> 248-613-8586 
> www.corvairmechanic.com 
> 
> 
> -----Original Message----- 
> 
From: J R Read_HML <hmlinc at sbcglobal.net> 
> To: Corvanatics AB <corvanatics at corvair.org>; econousaparts at fuse.net 
> Sent: Mon, 4 May 2009 8:55 pm 
> Subject: Re: [FC] Battery question 
> 
> 
> 
> R51... I think it might also go by G51. Anyway, the point is to have the 
> battery terminals in the correct orientation. 
> Later, JR 
> 
> ----- Original Message ----- 
> 
From: <econousaparts at fuse.net> 
> To: <corvanatics at corvair.org> 
> Cc: <corvanatics-request at corvair.org> 
> Sent: Monday, May 04, 2009 6:42 PM 
> Subject: [FC] Battery question 
> 
> 
>> Can someone please tell me the battery to use to replace the one in my 
>> 63 
>> Corvan. If memory serves me correct it was a newer Honda application but 
>> Im not certain. 
>> 
>> 
>> 
>> 
>> 
>> -- 
>> Tim in Ky 
>> EconoUSAparts 
>> Your used 61-67 Econoline parts source 
>> Constantly parting out E100 vans and trucks. 
>> A100 parts also available 
>> 
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> 
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