conversion of dynamo to alternator

[Anonymous]

Hi sorry if you have seen this before
Hi All
just a question about converting a dynamo to alternator using the same casing.
Any ideas of cost
Any ideas where to get it done
If the units are bought converted dynamo and voltage regulator is the job a diy
thanks in advance
roger

[Anonymous]

Powerlite are the people for this. their website is on the following link:

http://www.powerlite-units.com/dynalite-fitting-example/

The actual conversion of the unit is not, I would think a DIY job, but the actual installation of the Powerlite unit into the car would be.

[Anonymous]

Hi thanks for that will give them a ring
roger

[Anonymous]

alternatively – for a mere £440 AES do them… http://www.autoelectricsupplies.co.uk/product/1164/category/197

I fitted a regular Lucas 17ACR alternator – looks all wrong, needed a different pulley and a home made bracket but works well and cost a bit less.
Chris

[Anonymous]

Hi chris thanks for that will have a look

[Anonymous]

Cheaper option would be a ‘Dyanamator’ – looks like a dynamo but is an alternator http://www.accuspark.co.uk/dynamator.htm

Downside, they only output 45 amps, whereas a modern alternator will output circa 70 amps which is better if your doing a lot of stop start driving/traffic queuing/crawling along.

Personally I went for the higher output rather than the traditional dynamo look.

[Anonymous]

Hi thanks to everybody thats replied
roger

[Anonymous]

Hi Roger,

Don’t wish to disagree with Dave in any way, as my knowledge of tractions is miniscule. But I do know a little about DC electrics having done an apprenticeship and qualified as a licensed aircraft electrical engineer in a previous life.

The 70 amps that Dave talks about is only really useful after engine start when the lead acid battery goes into ‘recovery’. The length of this phase should only be a minute or two, though obviously varies according to battery condition.

The chief advantages of alternators (AC generators) over dynamos (DC generators):
1. gives a charge at idle, whereas the dynamo will allow a small battery drain
2. Brushless, so virtually maintenace free
3. Solid state rectifier and voltage regulator. No pesky contacts, no set up, no maintenance
4. Lightweight

The list goes on. IMHO, 45 amps should be more than enough. Just make sure that which you are fitting is quality. There’s a lot of rubbish out there.

[Anonymous]

@NormanAnderson wrote:

Hi Roger,

Don’t wish to disagree with Dave in any way, as my knowledge of tractions is miniscule. But I do know a little about DC electrics having done an apprenticeship and qualified as a licensed aircraft electrical engineer in a previous life.

The 70 amps that Dave talks about is only really useful after engine start when the lead acid battery goes into ‘recovery’. The length of this phase should only be a minute or two, though obviously varies according to battery condition.

The chief advantages of alternators (AC generators) over dynamos (DC generators):
1. gives a charge at idle, whereas the dynamo will allow a small battery drain
2. Brushless, so virtually maintenace free
3. Solid state rectifier and voltage regulator. No pesky contacts, no set up, no maintenance
4. Lightweight

The list goes on. IMHO, 45 amps should be more than enough. Just make sure that which you are fitting is quality. There’s a lot of rubbish out there.

I agree with all of the above. You can buy just the bracket from CAS and then get a alternator meant for plant machinery off of e bay.

[Author]

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