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Re: [Healeys] Electric Draw

To: "R. Lindsay" <050.rpl@gmail.com>
Subject: Re: [Healeys] Electric Draw
From: Per Schoerner <per@schoerner.se>
Date: Fri, 7 Jun 2019 19:04:53 +0200
Cc: Healey List <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <C5567577-C720-4D54-A363-8161A2E25CCB@gmail.com>
Price
In your first note you wrote that you turned the power off in the boot and two 
days after that the battery was dead. You also wrote that you bypassed the 
power switch and all was well the day after.
To me that indicates a problem with the power switch. Remember the power switch 
also short the ignition when in the off position. There might be a problem with 
the black and white wire connected to the power switch and the distributor.

Per

Skickat från min iPhone

> 7 juni 2019 kl. 14:47 skrev R. Lindsay <050.rpl@gmail.com>:
> 
> For the past few weeks I have been fighting a parasitic draw on my BJ8. It 
> was running about .48 amps and would drain my battery in a day or so. I was 
> told by a mechanic that a diode in my alternator must have blown therefore 
> causing the draw. He also mentioned that my ground wires in the boot were 
> loose which he tightened. I brought the car home, turned off the power in the 
> boot and 2 days later the battery was dead. 
> 
> So, hereâ??s what Iâ??ve done. I jumped the battery and started the car and 
> ran it for 10 minutes. I disconnected the charger and tested the battery - 
> 12.48 volts. I then removed the cutoff switch and bolted the grounding wires 
> together. I tested for a draw and got a zero reading. That was last night. I 
> went out this morning (12 hours later) and the battery reads 12.33 volts. 
> 
> My questions are 1. Is .15 volts a reasonable drop in voltage for a sitting 
> car in 90 degree heat and 2. Can a diode in an alternator work sometimes and 
> not at others. If itâ??s either â??good or badâ?? all the time, I guess I 
> need to presume the alternator is not the source of the draw. If a .15 volt 
> loss over 12 hours is reasonable then removing the cut out switch in 
> conjunction with presuming the alternator is good (as it works fine now) 
> solved my problem. 
> 
> What does the wisdom of this great resource think?
> 
> Price Lindsay
> 
> Cell: 630-841-6300
> Email: 050.rpl@gmail.com
> 
> Sent from my iPhone
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