alternator(oops)
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
By using this site, you agree to our rules. Please see: Terms of Use
alternator(oops)
I've recently had a problem with my dynamo, which I've replaced with another but have started thinking about an alternator. I thought there might have been a 'sticky' on the modification. Can someone post the wiring alterations that are required for this change please? As I may consider this in the future. PLEASE IGNORE THIS POST------THERE IS A STICKY!!!
However the size/rating of the main cable would be useful.
However the size/rating of the main cable would be useful.
-
- Minor Friendly
- Posts: 37
- Joined: Mon Nov 15, 2010 11:36 am
- Location: Surrey
- MMOC Member: No
Re: alternator(oops)
Mine came with the required cable, one thick and one thin to the starter switch, and the other to the ignition light
Est ursus catholica?
Defecatein papa silvis?
Defecatein papa silvis?
Re: alternator(oops)
As long as you use a Lucas 16 or 17 or 18 ACR - the existing cable is heavy enough. The critical thing is the amount of current the car uses - that determines how much the generator produces. So if nothing else changes in your car - an alternator will churn out the same current as your dynamo did before... And of course - the car needs to be running negative earth...
-
- Minor Legend
- Posts: 2865
- Joined: Mon May 09, 2011 3:15 pm
- Location: Birmingham THE Second City & home of Aston Villa
- MMOC Member: No
Re: alternator(oops)
one of the best mods you can do ,even very later moggies had alternators
Cheers Alex
all thoughts are given in good faith but..." You pays your money and takes your choice"
[/color]
all thoughts are given in good faith but..." You pays your money and takes your choice"
[/color]
-
- Minor Legend
- Posts: 2147
- Joined: Mon May 10, 2004 9:10 pm
- Location: Oxford, UK
- MMOC Member: Yes
Re: alternator(oops)
The table below shows the outputs for the Lucas ACR alternator range and the cable sizes required to take the full output current. This will be required from the alternator up to either the starter solenoid or pull switch, as that will at times take the full output.
One advantage of the ACR range is that it has two main output terminals (2 x Lucar 35A), so instead of one large single cable, you can run 2 smaller cables, one from each alernator terminal, and connect them both to the solenoid/pull switch. We have used 2 x 65/0.3mm cables for our ACR23, which is much easier to terminate and route than a single 120/0.3mm.
[frame][/frame]
One advantage of the ACR range is that it has two main output terminals (2 x Lucar 35A), so instead of one large single cable, you can run 2 smaller cables, one from each alernator terminal, and connect them both to the solenoid/pull switch. We have used 2 x 65/0.3mm cables for our ACR23, which is much easier to terminate and route than a single 120/0.3mm.
[frame][/frame]
Richard
Re: alternator(oops)
A standard car with no power greedy extras - just needs the standard wire - it's perfectly adequqate. Even running in to a 'flat' battery - an alternator actually pushes less current into the battery (but for a longer time of course) than a dynamo.
-
- Minor Fan
- Posts: 279
- Joined: Fri Jun 01, 2012 1:02 pm
- Location: Florida, USA
- MMOC Member: No
Re: alternator(oops)
Will someone confirm the obvious, please. The alternators have built in regulators.
I've had alternators on vintage machines that had external regulators.
thanks
David
I've had alternators on vintage machines that had external regulators.
thanks
David
Re: alternator(oops)
with very few exceptions yes built into the alternator
-
- Minor Legend
- Posts: 2147
- Joined: Mon May 10, 2004 9:10 pm
- Location: Oxford, UK
- MMOC Member: Yes
Re: alternator(oops)
For Lucas alternators the 'R' indicates an integral regulator, so 15AC needs an external regulator and 15ACR has it built-in. Virtually everything around today has the regulator integral with the alternator.
Richard