[Healeys] FW: My 100-6 1957

Fri Nov 6 11:33:35 MST 2020

The Amp gauge should not have a shunt resistor. The rating should be 
compatible with the output of the generator. Mostly 20A or 30A. If you 
have an uprated generator you should replace the Amp gauge with a 50A, 
60A or 80A gauge, depending on output. Make sure the wiring is up to 
these amperages. You cannot damage the gauge when you have connected it 
up the wrong way. It will just read charge instead of discharge v.v. The 
can be rectified by changing over the wires. There are no pos. or neg. 
earth versions. An Amp gauge is fitted in the main supply cable, usually 
brown, but should exclude the starter motor circuit.

Most were Lucas branded but there are a few SMITHS and JAEGER branded 
ones. They are all identical technically as they were all made by the 
same manufacturer.

A much safer option is fitting a Voltage gauge which is fitted standard 
in cars with an alternator. This is just wired to the accessory terminal 
of the ignition switch. It will give you the same information.

Kees Oudesluijs

Op 6-11-2020 om 18:53 schreef cjerryadams--- via Healeys:
> A wiring schematic would be very helpful. Moss has reprints of factory 
> service manuals. Also someone has large 11”x17” laminated schematic 
> with proper colors of wring offered.
> Jerry BN2
>
> Sent from my iPhone
>> On Nov 6, 2020, at 10:43 AM, Bob Spidell <bspidell at comcast.net> wrote:
>>
>>  Correction: My old ammeter /may/ have a shunt resistor. I don't 
>> recall one, but I haven't looked at it in years; I'll see if I can 
>> find it in my parts stash. I didn't install it because it appeared 
>> full current could pass through it, and IIRC I figured 14ga wire or 
>> bigger might be needed, and would have to be routed through the 
>> scuttle and under the fascia.
>>
>> On 11/6/2020 7:13 AM, Bob Spidell wrote:
>>> My quick take:
>>>
>>> He should:
>>>
>>> 1) Join this list.
>>>
>>> 2) Join at least one forum:
>>> https://www.britishcarforum.com
>>> https://www.ahexp.com/
>>>
>>> 3) This list's own David Nock is the go-to for tough problems and 
>>> otherwise impossible-to-find parts:
>>> http://www.britishcarspecialists.com
>>>
>>> FWIW: I got an ammeter for my BJ8 years ago; it's the only one I've 
>>> seen for Healeys--it is a Smiths--but I've been leery of installing 
>>> it as it has to go in series with one of the terminals on the 
>>> voltage regulator--no shunt--and AFAIK it carries full dis/charging 
>>> current (possible major smoke producer). If his has a shunt, it's 
>>> likely an aftermarket and he probably needs to contact the 
>>> manufacturer (but it's likely for 12V systems and, conceivably, all 
>>> he as to do is wire it backwards for pos. gnd.). Getting the fuel 
>>> gauge to work properly can be an involved process; MGA Guru has the 
>>> most comprehensive info I've seen: 
>>> https://www.mgaguru.com//mgtech/fuel/fuel.htm
>>>
>>> Bob
>>>
>>>
>>>
>>> On 11/6/2020 6:26 AM, BJ8Healeys wrote:
>>>>
>>>> Hello, Healeyphiles –
>>>>
>>>> I received the message below concerning issues with a BN4.   I’m 
>>>> forwarding it to the experts.  If anyone can help, please contact 
>>>> Matt Mirabile directly.  Please see the attachments for the 
>>>> specific problems and questions.
>>>>
>>>> Thanks!
>>>>
>>>> Steve Byers
>>>>
>>>> HBJ8L/36666
>>>>
>>>> BJ8 Registry
>>>>
>>>> AHCA Delegate at Large
>>>>
>>>> Havelock, NC  USA
>>>>
>>>>
>>>> Begin forwarded message:
>>>>
>>>>         *From:* MATTHEW MIRABILE <matt2411 at verizon.net>
>>>>         *Date:* November 5, 2020 at 11:54:43 AM MST
>>>>         *To: c.matthews at talktalk.net*
>>>>         *Subject:* *My 100-6 1957*
>>>>
>>>>         Pls help. I have the car since March 2019 , I bought it
>>>>         from a dealer / estate sale in Benecia Cal.  I have 3-4
>>>>         tech/wiring questions that my Flagstaff Az mechanic could
>>>>         not solve.  I love the car and am disappointed that he
>>>>         could not solve the problems. Can you send me a few email
>>>>         addresses that I can send my issues to ? . I have an
>>>>         electrical background but no one has been able to help me.
>>>>          Thank you regards Matt Mirabile. 516-941-6167.
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>
>>>
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>>
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>
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