My '48 Int. KB-7 (Sanford)

[Geoff Weeks]

Do both the "ends" have holes in them to be screwed to the brush holders? If that is the case the center covered in black gets attached to the stud. 

[Joey Mack]

No GW.  All 4 are tied together. Only 1 hole

[Geoff Weeks]

I don't think that is correct? What does your old one look like? If needed I can open one of mine and see if my memory is any good.

[Joey Mack]

Mine has 2 pairs of coils each with its own screws for the coils

[Geoff Weeks]

Sorry I didn't see that earlier.  I don't think there is a way that would give the factory result, if it would work at all.

For 12 volts, I would look at L/N and a SAE #1 mount. I don't know the cost, but you will have something that can be repaired/replaced easily.

 I am sticking with 6 volt so staying with the old Delco. I did try an new "aftermarket" armature and found them to work well.

[Joey Mack]

I took a closer look at my starter. Yes the old coils had 2 screws to attach to 2 brushes. But those 2 brushes have a jumper wire. Now I'm thinking I can use what I bought because of the jumper. those 2 brushes are 180 degrees from each other. 

[Joey Mack]

I dropped the oil pan. 1/2'' of sludges, probably why the oil pressure was low, the pick up made a dent in the sluge.. 

I blasted the pan but old age reveals some small pitting on the outside.  I'm good with it. Primed and painted it and the bolts. 

[mowerman]

Wow, you’re the man … I really didn’t think you were gonna find anything in there

[Geoff Weeks]

That light gauge wire is enough to balance any slight difference in the current through the paired coil path, but I don't think it is heavy enough to carry a full 1/2 of the current draw of the starter. Yes, mine have that wire also.

I don't remember what gauge it is, something like 14 or maybe 12 at the most.

Like I said, I don't know what is going with those coils, they are NOT the same as the stock set-up. 

I am just guessing here, but I wonder if for 12 volt they ran all the coils in series, but in that case there should be a large conductor tying the two "hot" brushes together, the same size as the series coil stock itself. That little wire can not carry that kind of current.

 All I can tell you for sure, is that is not how the stock motor is set-up.

 

If you can, bolt the pan back up and run it for a few hours to flush more gunk out of the block, use RTV or the old gasket so you don't waste a new gasket until the final time the pan goes up.

I was surprised by how much more stuff came out after the 1st cleaning.

[Geoff Weeks]

20 minutes ago, mowerman said:

Wow, you’re the man … I really didn’t think you were gonna find anything in there

Unless it has been rebuilt, that is 80 years of accumulation in there. Likely most of it with non-detergent oil, which allows the heavy stuff to settle out.

[mowerman]

lol thats why im a doityourselfer,,,and you guys are pros,,,and that makes perfect sence,,,bob

[Joey Mack]

GW... as far as the starter goes.  I am going to put it together with the parts I have.  If it fails, im out $145.00.  Im willing to try,  and I will post the results.   I am also looking for the correct coils. The rest of my new kit is good. 

[Geoff Weeks]

Let us know how it turns out. I will freely admit I have more to learn on motors and how the current flows in them. simple 2 pole generators or motors it really only can have one flow path. I am less sure when it comes to 4 pole esp with how the windings are on the armature.

[Joey Mack]

BTW.  You were spot on about the sludges and the pivoting oil pickup..  Too bad We cant give multiple solution awards on a single topic.. You would get them on this one...