one-wire alternator conversion

[JKent]

any suggestions for converting to an alternator on my BJ7? I would prefer that the ignition light still function, and anticipate shunting around the original voltage regulator, and leaving it in place.

 

[wheelguy]

You can go to www.hendrixwirewheel.com for tech tips and kits. Wheelguy

 

[dcarlg]

I purchased an alternator conversion kit from AH Spares.
Didn't want Chevy parts on my car. (But they probably are better)
Warning lamp is still functional.
Included mounting bracket is somewhat stout.
I attached the coil to the alternator using my existing coil bracket.

 

[RAC68]

I would not recommend a 1-wire alternator as its responsiveness to the changes in electrical demand is less than a 2-wire alternator. Also, a 1-wire alternator is more expensive and, as a specialty item, will be more expensive than its standard 2-wire counterpart. Additionally, the installation of a 2-wire system is not difficult and make up the overwhelming number of Healey conversions with a massive amount of experience and knowledge held by members of the BCF alone. Last, you charge light will work as usual.

As far as the choice of alternators, the commonly available Delco 10SI (65 amp max output) remains your cheapest choice with Japanese alternatives coming up because of their small size. Mountings range from a specially casted side plate from Denis Welsh Motorsport on the very nice but expensive side, Hendrix Wire Wheel for a complete alternator conversion kit, to a DIY at the least expensive end.

As an example, I chose the DIY approach at a total cost of $70 with a Delco 10SI 2-wire ($35). Adding a double pulley at $15, I was able to install Delco on my existing generator mount with the use of 2 washers, a 4”+ piece of pipe to take up the space between alternator and rear engine mount ($4), and a long bolt ($1.20). A universal adjuster was purchased ($15), cut down to fit, and mounted on the opposite side of where the original adjuster was mounted.

Although others can provide additional alternative approaches, please keep in mind that each commercially-available mount will support specified alternators. Also, keep in mind there are differences, among Healey models, in generator mount spacing (generator length) and placement, as well as pulley V width. When choosing a more modern alternator, make sure you can get and install a compatible V-pulley.

Hope this helps,
Ray (64BJ8P1)

 

[HealeyRick]

Go to my link below to see the wiring diagram to change the BJ7 control box for alternator use.

 

[JKent]

Many thanks, this should enable me to keep my halogen head lights, and seat heaters going nicely here in the sodden Pacific Northwest.

 

[wheelguy]

The advantage to a Chevy alternator is .... if you have any trouble while on a road trip you can take it to any NAPA or Autozone in the country and get a replacement right then. You will not have to wait on the side of the road for a week waitng on a Lucas alternator comming from England. If you bought a lifetime alternator it will also be free. EVERYONE carries a Chevy alternator.
Wheelguy