Replace Bread Box type voltage regulator?

curtsm151 · Unread post by **curtsm151** » March 22nd, 2019, 9:00 pm

Is there a way to replace the old bread box type voltage regulator on a 1961 Mutt?

Fil Bonica · Unread post by **Fil Bonica** » March 22nd, 2019, 9:57 pm

There are solid state replacements readily available.
Kind of pricey but a good choice.

Fil Bonica

curtsm151 · Unread post by **curtsm151** » March 22nd, 2019, 10:34 pm

Anyone done this? any detailed description of the process would be appreciated

Fil Bonica · Unread post by **Fil Bonica** » March 22nd, 2019, 11:18 pm

From what I know it is simply plug and play.

Fil Bonica

raymond · Unread post by **raymond** » March 23rd, 2019, 8:12 am

I replaced mine, and as Fil said, it is simple "plug and play".

Raymond

curtsm151 · Unread post by **curtsm151** » March 23rd, 2019, 9:07 am

Don't have to replace the volt gauge with an amp gauge?

Hambone · Unread post by **Hambone** » March 23rd, 2019, 9:19 am

curtsm151 wrote:Don't have to replace the volt gauge with an amp gauge?

No, it can be done in just a few minutes.

curtsm151 · Unread post by **curtsm151** » March 23rd, 2019, 9:26 am

is there a part # for this regulator? and or technical manual?

Unread post by **rickf** » March 23rd, 2019, 9:31 am

It will be covered in any of the -20 manuals from probably 1970 on up since that is about when they changed over to the later style regulator. As far as part number if you go to any of the surplus dealers and look for a regulator for the 25 amp charging system that is what you will get. The breadboxes have not been available for 30 years. The manuals are on this site for free download.

curtsm151 · Unread post by **curtsm151** » March 23rd, 2019, 9:36 am

so if i go this right...get the proper solid state regulator for early m151 (1961). Then just remove old bread box type and replace using the same wire harness.

Unread post by **rickf** » March 23rd, 2019, 9:43 am

Yup, You have two screw on connections right?

curtsm151 · Unread post by **curtsm151** » March 23rd, 2019, 9:48 am

Yes..round wire harness with metal screw on ends...I use spanner wrench to loosen and tighten.

I want the 25 AMP / 28 VDC regulator?

Hambone · Unread post by **Hambone** » March 23rd, 2019, 9:51 am

curtsm151 wrote:so if i go this right...get the proper solid state regulator for early m151 (1961). Then just remove old bread box type and replace using the same wire harness.

As Rick said, yes, there are two amphenol connections, I think one is a 3 prong and the other 4.

acudanut · Unread post by **acudanut** » March 23rd, 2019, 9:53 am

I would get rid of the bread box and get a 60 amp Alternator.

Unread post by **rickf** » March 23rd, 2019, 9:55 am

Here is a picture of mine from way back but you can see the regulator with the connections.

Replace Bread Box type voltage regulator?

Replace Bread Box type voltage regulator?

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Re: Replace Bread Box type voltage regulator?

Re: Replace Bread Box type voltage regulator?