Charging system 1952 cub

[tst]

cool

 

[Workinprogress]

Well the fun never ends!

After fixing the wire in the regulator I got 10 amps on the amp gauge but I only ran the tractor for a couple minutes. Follow up test drives found sporadic output.

I went through and removed everything including the generator mounting brackets. Cleaned all surfaces with a wire brush on my grinder. Reinstalled everything including additions ground for the regulator. Output still sporadic.

Removed generator and disassembled. Found some internal issues. One of the bare wires for the field coil was touching the generator housings. Also found bent brush holder. While straightening the brush holder the small tab broke off that holds the brush

On that generator all three brush brackets are riveted to a frame.

So looking like I have a few options.
option 1 put $ into a potentially questionable generator. Not sure of cost of replacing brush bracket.
Option 2 continue to use magento but install 12 volt single wire generator.

 

[Mht]

If it were mine and I was going to depend on it at all I’d stick with the magneto, install 12 volt single wire alternator, 12 volt battery and never look back

 

[Eugene]

If it were mine and I was going to depend on it at all I’d stick with the magneto, install 12 volt single wire alternator, 12 volt battery and never look back

Yup. Operate the magneto until the coil fails, then convert using the magneto points to battery powered ignition.

 

[staninlowerAL]

ito: Agree, the best of both situations. Magneto for running engine, 12v alternator/battery for charging, starting, accessories, etc.

 

[Workinprogress]

Thanks for the input.

Seems like that Napa RAY 2134011SW is one of the standard Options people use for the upgrade. Price isn’t bad $73+core. The mounting bracket seems pretty simple in design so pretty sure I can fab one up with metal around the garage. Any suggestions on metal thickness?

Parts list for upgrade:
1) Generator
2) Mounting bracket
3) 12 volt battery
4) Maybe new belt if length changed
5) Electrical wire - generator to amp gauge and amp gauge to starter/battery
6) new amp gauge(?) current one only goes to 20
7) 12 volt light bulbs for headlights

Anything I am missing?

 

[staninlowerAL]

Depending on which alternator you get you might have to re-clock in so the mounting/brace points are in the right location for maximum hood clearance. Some people take the short route and cut out a slot in the hood. IMO, BAD IDEA!!!!!

 

[Eugene]

Price isn’t bad $73+core.

Check prices elsewhere. Probably cheaper on the internet.

Save your old generator. You may need to move the generator pulley to the alternator. That is if you purchase a Delco clone.

 

[staninlowerAL]

:hattip: Ebay, One wire, about $40, no core, free shipping, self exciting, internal regulator, no pulley swap, charges at low RPM.

 

[Workinprogress]

Been pricing out some different alternators. Found a couple at rock auto

Reman
PURE ENERGY 7127109 - $36+sh
PURE ENERGY 7127SW3 - $42+sh
ACDELCO 3342114 - $42+sh

New
~$55 + sh

Anything specific I should be looking for or looking to avoid?

 

[staninlowerAL]

35-40 amp should be more than enough for a Cub. Self exciting, internal regulator, output at low rpm.

 

[Eugene]

Been pricing out some different alternators. Found a couple at rock auto

Reman
PURE ENERGY 7127109 - $36+sh
PURE ENERGY 7127SW3 - $42+sh
ACDELCO 3342114 - $42+sh

New
~$55 + sh

Anything specific I should be looking for or looking to avoid?

Shipping.
Check Ebay and Amazon. A lot of times the same item has different parts numbers and prices, depending on who is selling. Some sellers will pay the shipping.

Edit: Check DB Electrical.

Another edit. Most sellers for the single wire alternator provide a 12 month warranty - - free.