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Forum: Model A (1928-31) 01-21-2021, 10:32 AM
Replies: 17
Views: 621
Posted By Badpuppy
Re: where is the most idiot-proof diagram of terminal box wiring?

Perfect drawing, Bob, but I don't recommend connecting anything else to the battery circuit. Accessories should be connected to the generator side, same as lighting, horn and wiper.
Forum: Model A (1928-31) 01-16-2021, 10:15 AM
Replies: 32
Views: 1,409
Posted By Badpuppy
Re: 12v from 3 brush Ford generator

Depends on forward voltage drop (Vf) of the particular diode. If you can't find the spec sheet, figure 1 volt drop: 1V x 20A = 20W. Grab onto a lit 20W bulb to find out how much heat sink is...
Forum: Model A (1928-31) 01-16-2021, 09:49 AM
Replies: 16
Views: 1,056
Posted By Badpuppy
Re: Accessory fuse panel

To use the original 12 AWG wiring the ammeter should be on a 20A branch circuit serving the battery, with the fuse panel sourced from the generator. The battery normally draws about 1A charge so the...
Forum: Model A (1928-31) 01-15-2021, 10:04 AM
Replies: 23
Views: 771
Posted By Badpuppy
Re: Headlight Help

Another method places the SB behind the original lens, and as you say the double diffraction "confuses" the beam.
Forum: Model A (1928-31) 01-15-2021, 10:02 AM
Replies: 23
Views: 771
Posted By Badpuppy
Re: Headlight Help

Those are the 8" to 7" adapters for standard sealed beams. Makes the car look bug-eyed.
Forum: Model A (1928-31) 01-14-2021, 10:36 AM
Replies: 23
Views: 771
Posted By Badpuppy
Re: Headlight Help

I should add that 12V systems reduce current requirements by half, which doubles generator power capacity. The generator can thus handle the load of 50 CP bulbs without overheating.

Of course, a...
Forum: Model A (1928-31) 01-14-2021, 09:57 AM
Replies: 19
Views: 579
Posted By Badpuppy
Re: "Flickering" low bean headlights

Connect a #18 or larger wire between each conduit and the forward hood latch screw on each side. Tin 1/2" at one end and tuck under a steel hose clamp on the conduit inside the radiator shell and...
Forum: Model A (1928-31) 01-13-2021, 12:34 PM
Replies: 23
Views: 771
Posted By Badpuppy
Re: Headlight Help

The brightest bulb Ford authorized for model A was 21/32 CP, A-1116. 32 CP stresses the capacity of the generator, and should be used sparingly. Obviously overuse of 50 CP can shorten the life of...
Forum: Model A (1928-31) 01-12-2021, 08:36 AM
Replies: 4
Views: 424
Posted By Badpuppy
Re: LED Tail Lamp Bulb

Sort by "BA15S" -

https://www.ledlight.com/1129-81-ba15s-base-led-lightbulbs.aspx

68798-WW (warm white) is what I have
Forum: Model A (1928-31) 01-10-2021, 10:22 AM
Replies: 23
Views: 891
Posted By Badpuppy
Re: AutoLite heater install

Looks like you'll have to fabricate an offset/periscope duct like they make for clothes dryers.
Forum: Model A (1928-31) 01-07-2021, 10:40 AM
Replies: 63
Views: 3,921
Posted By Badpuppy
Re: Signs, back in the day

I was a kid in Oglesby, IL, the street signs were 4x4 concrete obelisks about 4' high. The paint faded and had to be restencilled every year or two. Probably replaced by now.
Forum: Model A (1928-31) 01-06-2021, 09:26 AM
Replies: 14
Views: 1,025
Posted By Badpuppy
Re: Horn, for what?

http://modelabasics.com/

Just about everything you need to know about everything.
Forum: Model A (1928-31) 01-05-2021, 02:41 PM
Replies: 6
Views: 396
Posted By Badpuppy
Re: Rewiring horn and wiper motor for 12 volts

Thanks, Tom. I have your procedure in my files, just couldn't find it to post. Very clear instructions.
Forum: Model A (1928-31) 01-05-2021, 09:39 AM
Replies: 6
Views: 396
Posted By Badpuppy
Re: Rewiring horn and wiper motor for 12 volts

You need to double the number of turns to get the same current. Flux density is a function of field current. You can use a slightly smaller wire gauge so it fits. Much easier to use a 1.2 ohm 50...
Forum: Model A (1928-31) 01-04-2021, 10:24 AM
Replies: 32
Views: 1,409
Posted By Badpuppy
Re: 12v from 3 brush Ford generator

@jrelliott - You're right about the FP regulator. It is a shunt regulator, which means it simply dumps excess generator power to ground. I figure it wastes about 1 HP at the high end. 1 horse...
Forum: Model A (1928-31) 01-02-2021, 10:50 AM
Replies: 6
Views: 335
Posted By Badpuppy
Re: Silly question: How do you remove the gas gauge float retaining washer?

Just grind off the end. The brass float bends around the curve of the rod to hold it in place. For the others tear off the old cork and reshape the end to allow removal of the washer and...
Forum: Model A (1928-31) 12-31-2020, 10:42 AM
Replies: 32
Views: 1,409
Posted By Badpuppy
Re: 12v from 3 brush Ford generator

The "button" diodes (3 of them) are pressed into the deeper recesses of the aluminum rectifier heat sink in an alternator. A better choice for cutout mod is a stud mount type with heat sink compound...
Forum: Model A (1928-31) 12-31-2020, 10:20 AM
Replies: 32
Views: 1,409
Posted By Badpuppy
Re: 12v from 3 brush Ford generator

Math's ok but not the reasoning. If the gen actually is capable of 22A at 6V without melting then it is capable of 22A at 12V as well. This means if you get 132 watts output at 6V then you get 264...
Forum: Model A (1928-31) 12-30-2020, 10:27 AM
Replies: 63
Views: 3,921
Posted By Badpuppy
Re: Signs, back in the day

Red Devil lighter fluid label says it's naphtha.
Forum: Model A (1928-31) 12-30-2020, 10:19 AM
Replies: 32
Views: 1,409
Posted By Badpuppy
Re: 12v from 3 brush Ford generator

Correct.



Not very well. The operate point is different, should not cut in before output reaches battery voltage. You can find 12V cutouts online.

Diode cutouts are one-way valves and work...
Forum: Model A (1928-31) 12-30-2020, 10:04 AM
Replies: 32
Views: 1,409
Posted By Badpuppy
Re: 12v from 3 brush Ford generator

The generator itself needs no modification. Connect the battery through a switch and cutout*. Polarize the generator if necessary by touching hot battery to the output post for half a second. ...
Forum: Model A (1928-31) 12-28-2020, 10:08 AM
Replies: 13
Views: 824
Posted By Badpuppy
Re: Fun Projects Cutout

With original 21 CP headlamps, single 6 CP tail light and normal battery charge, the generator draw is approximately 15A. With lights off, it should be around 6A. There's something wrong with that...
Forum: Model A (1928-31) 12-27-2020, 09:57 AM
Replies: 28
Views: 1,532
Posted By Badpuppy
Re: Spark plug socket

I enjoy twisting a wench. ;)
Forum: Model A (1928-31) 12-27-2020, 09:48 AM
Replies: 18
Views: 952
Posted By Badpuppy
Re: Recommendation needed for add on turn signal system

I have the same car as yours. https://www.ledlight.com/6-volt-positive-ground-automotive-led-lights.aspx carries a full line of LED bulbs. I have amber 12-SMD LED bulbs in my cowl for turn signals....
Forum: Model A (1928-31) 12-26-2020, 09:34 AM
Replies: 28
Views: 1,532
Posted By Badpuppy
Re: Spark plug socket

The first time I heard the term "spanner" was in a NATO motor pool 50+ years ago. The bloke was holding one in his hand, so I caught on right away what he meant. I suspect "wrench" was just as...
Showing results 1 to 25 of 500

 
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