Bob.
Another item you didn't consider are the contacts in the battery
disconnect switch. I know with mine I have to sometimes fiddle around
with it to make good enough contact to run the starter well. Don't know
if the current available replacements are satisfactory.
Regards,
Gordy
Longbridge BN4, with left side door lock
On 2018-05-15 10:30, Bob Spidell wrote:
> There's several variables to consider:
>
> - Later 6-cyl cars have the battery in the boot. That's a long cable run to
> the starter solenoid; the cables and terminals need to be in good nick.
>
> - Ditto the starter. The field coils in starters build up resistance over
> time and, eventually, the starter won't crank as well, putting even more load
> on the battery. After a couple cranks, the field coils get warm and the
> resistance builds up and, of course, the battery's reserve gets depleted.
>
> - The higher the compression in your engine, the harder it is to turn over.
>
> - Thicker oil, like 20W-50 can bog an engine down a bit.
>
> The more CCA you have, the more margin to start an engine, esp. on a cold day
> (that's why CCA is the nominal stat for batteries). My Healeys are harder to
> start after they've been sitting for more than a few days. The 500CCA number
> I gave was a SWAG; I haven't seen any full-size auto battery with less than
> that anyway. We got a battery for my dad's '65 Mustang 289 with 550CCA from
> Autozone; Costco didn't sell the size we needed. It cranks the V8 OK.
>
> FWIW, when I rebuilt my BJ8's engine the (previously) satisfactory wet cell
> battery I had wouldn't even turn the engine over (later compression checks
> showed 180PSI +/- in all 6). I had the starter rebuilt and installed an
> 800CCA AGM battery. The starter actually startled me the first time I
> cranked it; it's nearly as fast as the geared starter in my Mustang.
>
> TLDR; The more the better.
>
> Bob
>
> On 5/14/2018 10:12 PM, John Spaur wrote:
>
>> So... wise ones (and I mean that sincerely)
>>
>> My current battery is an Intimidator rated at 775. Bob S. mentioned in a
>> post about a minimum of 500.
>>
>> How many CCA's should a battery have for a Healey engine?
>>
>> TIA
>>
>> John Spaur
>>
>> San Jose
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
>
> Archive: http://www.team.net/pipermail/healeys
>
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/ggilliam at
> usol.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://autox.team.net/pipermail/healeys/attachments/20180515/f8698741/attachment.html>
|