Blowing Starter Safety Fuse Help Please
 

Any help would be much appreciated.
I’m working on a 30 Tudor
All stock. I have installed a tested generator and
Cutout. When I hook the battery cable up,
The generator cutout immediately closes the points
And since the vehicle isn’t running or ignition on,
It blows the safety fuse.
So basically it’s trying to motor the generator while everything is off.
Now if I attach the cutout without the 2 little screws on the generator body
It all works.
All I can think of is something off the harness from the coil and starter side is
Has power when it touches the batt connection on the cutout top.

Re: Blowing Starter Safety Fuse Help Please
 

Almost sound like you have the cutout installed backwards.

Re: Blowing Starter Safety Fuse Help Please
 

Here’s a picture. If it helps.

Re: Blowing Starter Safety Fuse Help Please
 

https://www.fordbarn.com/forum/attac...p;d=1709068136

Here’s a picture. If it helps. 31ASlant

Re: Blowing Starter Safety Fuse Help Please
 

Is the cutout for an opposite polarity system? Do you have a positive ground or negative ground?

Re: Blowing Starter Safety Fuse Help Please
 

Positive ground all stock

Re: Blowing Starter Safety Fuse Help Please
 

I’m not sure about the cutout itself. I’m assuming it’s positive ground.
I don’t know if they made them another way

Re: Blowing Starter Safety Fuse Help Please
 

you need a nylon or non-conducting washer between the cutout and two yellow wires.should not touch cutout.

Re: Blowing Starter Safety Fuse Help Please
 

move the two yellow wires on the other side of red washer so not touching the cutout case.put the cover back on

Re: Blowing Starter Safety Fuse Help Please
 

.
.
.

Maybe one of the small screws that mounts the cutout, is TOO long and is shorting one of the field coil wires.

Re: Blowing Starter Safety Fuse Help Please
 

Here is photo of what Gary WA is referring to>>>

Square part keeps washer in place and prevents shorts to the case cover.

Square part also centers the cover so the screw does not short on cover.

Photo from Berts website: www.modelastore.com

A-10563 GENERATOR CUTOUT INSULATORS- SET OF 2

Re: Blowing Starter Safety Fuse Help Please
 

Ok now I understand. So I’m basically putting 6 volts to the case of the cutout.
Is that why I’m burning fuses?
Thank you

Re: Blowing Starter Safety Fuse Help Please
 

yes

Re: Blowing Starter Safety Fuse Help Please
 

Its the wrong cutout, its backwards and missing the proper insulators. I rebuild generators and refurbish original cutouts. I can provide you with a correct cutout. PM me if interested.
Steve

Re: Blowing Starter Safety Fuse Help Please
 

Looks ok to me why is it backwards?

Re: Blowing Starter Safety Fuse Help Please
 

The cutout's two feet are always closest to the input side of the cutout and the generator output stud.

Re: Blowing Starter Safety Fuse Help Please
 

ndnchf is correct. The battery closes the points and connects it to the generator (motor), which blows the fuse.

Question is, where did that generator case come from. Looks like you need to drill and tap new mounting holes. (Careful of the field windings.)

Re: Blowing Starter Safety Fuse Help Please
 

That’s a later generator that style just had 2 wires coming out of a grommet instead of the threaded post one for power out, the other is field ground or attached to the oval cutout.
That style reproduction cutout usually has burned up contacts or melted solder where the winding connects.
Turn the cutout around and make a short wire to connect it.

Re: Blowing Starter Safety Fuse Help Please
 

Ther ya go.

Re: Blowing Starter Safety Fuse Help Please
 

Thanks:)