Converting 11AC to internally regulated alternator?

[Oldskoolrob]

Hi! Is there a quick/easy way to convert the wiring for 11AC set-up to a modern internally regulated jobbie? Back of the new alt has heaps of plugs! It's a OEX brand LXA101( Ashdown-Ingram - Alternator & Starter Motor Catalogue 2014 - Page 184-185 ) and the rear plug is labelled as D+, B+, B+ or WL, B+, B+ (IR25 plug) depending on which part of the catalogue you look at. Are WL and D+ the same....? It also has the regular battery-post (easy) with another blade terminal there, and a second post which I think is labelled 'w' (I don't have the unit with me at the moment, I'm going off internet pictures...


So, what do I do to get it wired in properly? Why are there two B+ tangs in the plug??
Cheers,
Rob.

 

[Oldskoolrob]

So the old Alternator has F+ and F- tangs B+ and AL posts.
B+ is the main battery, AL is the 7v feed to the warning light 3AW relay(?)
New alt has 2 xB+ posts which I assume you connect the old F+ to, leave the old F- off entirely and connect the main battery to the B+ post, AL wire to the AL post on the new one or the WL tang? Any ideas? Don't want to fry it out of the box...

 

[roverp480]

See previous posts that covers this issue Change from 11ac to 18acr, is it a good idea?

 

[Oldskoolrob]

Thanks I'll have a read, and google some 18ACR images to see if it's similar to the alt I've got.
Cheers,
Rob.

 

[roverp480]

Thanks I'll have a read, and google some 18ACR images to see if it's similar to the alt I've got.
Cheers,
Rob.

The pin layout on a ACR looks the same as LXA101, the two B terminals are likely to be connected inside the case, so one can use one or both

 

[Oldskoolrob]

Cheers.

 

[sdibbers]

There’s a similar Bosch alt that fits I believe. This guide for a Delco swap on an e type will tell you about how the wiring changes. https://www.coolcatcorp.com/Delco/Delco swap.html