Thanks Chris,
A very enlightening table!
Cheers,
Kees Oudesluijs
Op 2-5-2017 om 12:00 schreef Chris Dimmock:
> No.
> We are specifically talking about the Lucas C42 as used on the BJ8
> A Lucas C42 generates 30 amps at 4,500 rpm.
> It's fine.
>
>
> image1.PNG
>
>
>
> Sent from my iPhone
>
> On 2 May 2017, at 6:48 pm, Oudesluys <coudesluijs at chello.nl
>
>> There you are, 26A at full house.
>> How much does the generator generate? 20-25A if you are lucky.
>> Kees Oudesluijs
>>
>>
>>
>> Op 2-5-2017 om 7:34 schreef Roger Grace:
>>> Given the endless discussions on this topic, thought it would be
>>> useful to remind myself and any others who are interested in the
>>> major differences between alternators and generators
>>> In a gen. the heat generated is in the rotating armature that is on
>>> the inside of the enclosure and this is why cooling is
>>> important/difficult and the fan on the pulley provides this through
>>> the enclosure. The brushes on a gen work hard and switch full
>>> current several times per rev. hence the wear and sparking. Gen
>>> usually has an oilite bearing at the rear that also wears. This is a
>>> critical component as wear (dry no oil) could eventually lead to
>>> scraping of the armature on the field poles and throwing of lead at
>>> comm. Take care of your brushes, bronze bush and bearings and you
>>> will have a reliable gen.
>>> An alt. is inverted with the main winding on the outside (easier to
>>> cool hence more output) and the field on the inside; hence the
>>> shape - larger diameter and shorter. No mechanical commutator
>>> switching needed as this is done by diodes. Slip ring brushes feed
>>> low dc amps to the internal rotating field - that last almost
>>> forever. Alt usually have more reliable front and rear rotor
>>> bearings and less rotational weight as the main windings are on the
>>> stator and thus more mechanically robust than a gen.
>>> The discussions here also confuse me about the amps needed for our
>>> cars. I am with Chris on this one and wonder why you would need an
>>> 80 amp alt ?? !! Unless you run an extra 2 spots for long periods
>>> you likely don?t need the hi output of an alternator rather the
>>> mechanical reliability and the improvement of eliminating the
>>> mechanical regulator.
>>> Lets say headlights at 55W each; 5 amps for ignition and
>>> auxiliaries; 3 amps for side lights (convert these plus brake lights
>>> to LED?s to lighten your load); blower at 3 amps; wiper at 5 amps;
>>> OD 1 amp as worst case continuous. This gives a total of around 26
>>> amps full house driving at night in the Winter and raining !
>>> Intermittent loads are horn, brake lights, indicators. etc.
>>> No doubt one day will convert to an alt but it would likely be to
>>> eliminate the awful cheap non adjustable regulator that I had to
>>> purchase after my 50 year old Lucas one failed.
>>> rg
>>> *From:* Chris Dimmock
>>> *Sent:* Monday, May 1, 2017 6:42 AM
>>> *To:* Simon Lachlan
>>> *Cc:* Healey List
>>> *Subject:* Re: [Healeys] Dynalite or which alternator to C42 Generator
>>> The funniest thing I find about the "alternator inside a generator"
>>> conversions is the bloody pulley. It might look like a generator
>>> body - but you have to run a tiny pulley, because it needs a bucket
>>> load of revs to generate didly squat, more than a generator.
>>> Any good Lucas generator runs a Larger pulley - because it generates
>>> enough amps and stuff at low revs. Seriously men. Who revs their car
>>> past 5,000 rpm on the road?
>>> I run a C42 with a bigger DWR Pulley.
>>> That means I'm slowing down the old Lucas C42. Because it already
>>> generates enough power.
>>> Ok. I'm not running a 1,000 watt sound system or 4 IPods, and a
>>> grille full of spotlights. FFS - it's a Healey!!
>>> So if you run one of these alternator inside a generator silly
>>> things, it's a joke. You've got a fake, compromised alternator.
>>> Immediately identified by the pulley. An alternator needs air for
>>> cooling. A generator casing doesn't provide that.
>>> Run one or the other. Generator or alternator. I've got no issue if
>>> you run an alternator. Run a good, sensible, reliable one.
>>> Nearly as stupid as putting a disc brake inside a brake drum. Same
>>> issue.
>>> Innovative- but it doesn't work unless all you do is drive to a
>>> coffee shop.
>>> Simon. Just get a C42 and return the core when you get back.
>>> Best Chris
>>> Being Grumpy about modern shit.
>>>
>>>
>>> Sent from my iPhone
>>> On 1 May 2017, at 3:54 am, Simon Lachlan
>>> <simon.lachlan at homecall.co.uk> wrote:
>>>
>>>> My nephew?s generator issues may resolve themselves soon. May??.
>>>>
>>>> We may look at replacing the C42 in his BJ8 with an alternator, one
>>>> of the generator lookalikes.
>>>>
>>>> Dynalite is one of the names I?ve come across, as sold by Holden?s.
>>>> The Usual Suspects don?t seem to give their lookalikes their brand
>>>> names.
>>>>
>>>> Anyhow, I know this topic came up a few months back, but I wasn?t
>>>> interested then! So:-
>>>>
>>>> Does anyone have experience of these things?
>>>>
>>>> Is any brand better than another??
>>>>
>>>> Etcetc.
>>>>
>>>> Holden?s claim 45amps for theirs. AHSpares claim 50amps. A BJ8?s
>>>> C42 generator kicks out 30amps max. It seems that one does need the
>>>> BIG fuse in the Dummy Control Box. When I put in my alternator, a
>>>> Lucas ACR, I put in an extra cable to carry the extra
>>>> amps??.apparently if the alternator is really belting out the amps,
>>>> the old wiring is a bit marginal.
>>>>
>>>> Any other thoughts?
>>>>
>>>> Kind advice to the effect that putting more modern electrics in our
>>>> old bangers is streng verboten is unnecessary at this time.
>>>>
>>>> Thanks,
>>>>
>>>> Simon
>>>>
>>>> _______________________________________________
>>>> Support Team.Net <http://Team.Net> http://www.team.net/donate.html
>>>> Suggested annual donation $12.75
>>>> Archive: http://www.team.net/archive
>>>> Forums: http://www.team.net/forums
>>>>
>>>> Healeys at autox.team.net
>>>> http://autox.team.net/mailman/listinfo/healeys
>>>>
>>>> Unsubscribe/Manage:
>>>> http://autox.team.net/mailman/options/healeys/austin.healey at gmail.com
>>>>
>>>
>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
>>>
>>> Virus-free. www.avg.com
>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>> _______________________________________________
>>> Support Team.Net <http://Team.Net> http://www.team.net/donate.html
>>> Suggested annual donation $12.75
>>> Archive: http://www.team.net/archive
>>> Forums: http://www.team.net/forums
>>>
>>> Healeys at autox.team.net
>>> http://autox.team.net/mailman/listinfo/healeys
>>>
>>> Unsubscribe/Manage:
>>> http://autox.team.net/mailman/options/healeys/roggrace at telus.net
>>>
>>>
>>>
>>> _______________________________________________
>>> SupportTeam.Net <http://Team.Net> http://www.team.net/donate.html
>>> Suggested annual donation $12.75
>>> Archive:http://www.team.net/archive
>>> Forums:http://www.team.net/forums
>>>
>>> Healeys at autox.team.net
>>> http://autox.team.net/mailman/listinfo/healeys
>>>
>>> Unsubscribe/Manage:http://autox.team.net/mailman/options/healeys/coudesluijs
>>> at chello.nl
>>>
>>
>> _______________________________________________
>> Support Team.Net <http://Team.Net> http://www.team.net/donate.html
>> Suggested annual donation $12.75
>> Archive: http://www.team.net/archive
>> Forums: http://www.team.net/forums
>>
>> http://autox.team.net/mailman/listinfo/healeys
>>
>> Unsubscribe/Manage:
>> http://autox.team.net/mailman/options/healeys/austin.healey at gmail.com
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://autox.team.net/pipermail/healeys/attachments/20170502/2899cd4e/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image1.PNG
Type: image/png
Size: 286675 bytes
Desc: not available
URL:
<http://autox.team.net/pipermail/healeys/attachments/20170502/2899cd4e/attachment.png>
|
