8 replies to this topic

[ToM 2012]

Hi I am getting a dynamator tomorrow to install on my mk1 mini 1963 it was originally a positive earth but now have changed battery round and put a negative earth electronic ignition in. The engine is now running great but I need to get my charging system done. I have taken out the control box and will fit a dummy one? But what do I do to all the wires and what do I do to get it to charge? The dynamator is a dynamo look but have a alternator voltage inside it is expensive and I don't want to blow it from wiring it all wrong thanks Tom

[cal844]

The dynalite conversion was covered in mini world March 2016 issue

 

The kit should have instructions?

 

Remove Dynamo(you may need to swap the tensioning bracket and pulley assembly)

 

Once you have swapped all the parts over, wiring is easy

 

Give me a minute to get a couple pics from my mini world copy!

[cal844]

 

 

 

Hope these are clear enough for you

Edited by cal844, 24 June 2016 - 08:18 PM.

[ToM 2012]

Excellent thanks cal

[tiger99]

I think that must be incorrect, as if the 40 amp fuse blows, the alternator will have no load and is likely to be destroyed. In any case, is 40A sufficient? Car fuses og the Lucas type are rated at 1 second blowing current, not continuous current, which is about half of that, so it can only carry about 20A.

 

Don't believe everything that you read in trash comics these days.

[cal844]

I think that must be incorrect, as if the 40 amp fuse blows, the alternator will have no load and is likely to be destroyed. In any case, is 40A sufficient? Car fuses og the Lucas type are rated at 1 second blowing current, not continuous current, which is about half of that, so it can only carry about 20A.
 
Don't believe everything that you read in trash comics these days.

The 'patient' has had that conversion fitted for 9months with no issues, the 40 amp fuse in that kit iirc is a blade type fuse

[tiger99]

As long as the fuse has a continuous rating of more than the alternator's maximum output current it should be safe. 40 amps still seems a little bit on the low side. What is the dynamator rated at? Most conventional alternators were about 45 amps a long time ago, even higher now.

[ToM 2012]

I have been told today when I brought the dynamator I will need to fit a 45 amp fuse in my dummy control box but where do I get such a fuse from as mini spares don't do them thanks Tom

[tiger99]

Use a 50 amp. You will not get a 45 amp anywhere. I assume that the dynamator is rated at somewhere between 40 and 45 amps, which is reasonable.