A Tecumseh Tale

[305 380]

google Radio Shack 276-1185

 

in the old honda world this gets used a lot to replace the rectifier on 60's-70's with alternators. i have one on my `66 305 Dream

[Gregor 4,846]

Thanks  I'm thinking I may have to make a road trip today. I have a bridge rectifier around here some place, but apparently I put it away for safe keeping.  It's safe!

[Gregor 4,846]

Maybe I should run my battery almost dead, and then try my system.

[Gregor 4,846]

@Tractorhead I think maybe you need a vacation. How does Illinois in the winter sound?

[Tractorhead 9,064]

It is real simple,

put one of your Coil leads directly to ground

the other lead on the lower left terminal, where the diodes are in the Terminal in the upper after the fuse 

(where on my last pict the White wire is, you should be able to measure some DC Voltage relative to ground.)

   

Here are two examples how to connect them.

first for two coils (4 leads)                                      5A

Gnd ———- coil 1 ————>| ——————-T—- fuse. ————o  to ign on key Switch  (Put here your Load)                  o— Gnd

Gnd ——— coil 2 ————>| ———————I (connect here to the upper wire before Fuse)

 

 

or a single coil Charger

 

Gnd————coil—————>|——————- fuse————-0 to ign on key Switch

 

So a Winter in Illinois sounds lovely, but without my Horse... huh?

i think that hurt‘s 😷😂

 

C‘mon buddy, you’re so close to the Solution.

you will made it !

 

 

another solution is a cheapo Honda china regulator.

hook directly both AC leads together as you did before, when you can measue AC Voltage.

 

the both AC Leads on the regulator directly to the AC input terminals

and you must measure on the DC out 12V.... up to 14,4V maybe up to 15V.

The output ground somwhere to GND on the Tracta,

the Plus terminal to the ignition terminal on the keyswitch and you‘re done.

 

Edited January 21, 2021 by Tractorhead

[Gregor 4,846]

No Light

 

Light works

 

I am going somewhere today to find me a cheap regulator

Edited January 21, 2021 by Gregor

[Gregor 4,846]

"the other lead on the lower left terminal, where the diodes are in the Terminal in the upper after the fuse"  

[Tractorhead 9,064]

 

Or optional 

 

 

 

 

[Gregor 4,846]

My coils are not grounded anywhere.  Should they be?

 

I drove 90 miles to the big city. No one had a rectifier or voltage regulator. They could all order one, but no one had one.

[Gregor 4,846]

I grounded my coils as in your last pic. Put my diodes back in.  I HAVE 12 VDC THROUGH MY RECTIFIER BOARD @3000 RPM !

[ebinmaine 67,695]

Wwwwwwoooooooooooo

[Gregor 4,846]

!7 VDC @3600 rpm. Anyone need a selenium rectifier?

[wallfish 17,017]

39 minutes ago, Gregor said:

Can't tell if you're exited or not.

[Gregor 4,846]

@TractorheadI can't THANK YOU enough for sharing your knowledge, your guidance, and most of all your patience, in helping me through this problem. I learned a lot, and I'm sure others on here did as well, if they followed this thread. I am now a coil winding Machine!

I have the 6 amp fuse on the rectifier board. I have another 5 amp in-line fuse ahead of the ignition switch. I have another 5 amp in-line fuse between the switch and the battery. I should be protected, I think.

 

Go to your favorite hang out and have a few beers. Tell them to put it on my tab. I will catch up with them the next time I am in Bavaria.

[Gregor 4,846]

I hooked up a 12v head light to my battery, and let it run down.

8.5 VDC

 

I started the motor.

12.4 VDC @3300 RPM

 

It's time to celebrate.

 

As a side note:  January 21, 2021   My thermometer says 44 degrees. I can live with that all winter.

[Gregor 4,846]

I put it all back together, again. I have had the head off of this thing, or at least loose, more times than I can remember. This time,(hopefully the last time) I installed a new head gasket, and new head bolts. I even got brave and stuck the decal on. This poor motor has been kind-a beat up over the last couple weeks. It's got some scratches and dings. I feel like I should tear it down and repaint it. WELL THAT AINT GONNA HAPPEN!

 

Edited January 22, 2021 by Gregor

[Tractorhead 9,064]

What i meant, you can do that.

just simple steps to verify, and on the End you get a positive result.

that‘s in this time the only positive somebody like to be tested.

 

however Congrats to your Success.

You fixed the Charging system by yourself.

 

 

a sidenote - change your point of view,

Let her the few scratches, she survived a heart surgery twice.

also see them more like as Medal‘s of honor for your Work.

😎

 

they be allowed after 🤪

because we also have our scratches after times..😂

[ebinmaine 67,695]

4 hours ago, Tractorhead said:

we also have our scratches after times

Quite true. 

Some more than others.  

 

Excellent work helping out Super G-man all the way through the process. 

[Tractorhead 9,064]

Thanks Bud.

 

I knew it from my trainee’s, sometimes a little motivation is needed,

especially after a mishap twice.

 

If the systems will be understood, they can allway‘s be reworked, it just take it time on some stators,

to rewind them. Perfect is when a defect part or a template is available.

The turns was firstly just estimated, than measured. 

Some pre calulations give you differently results, because of how much coils, wirediameter, ohms, permeability,

quality of windings (quality of the Coil) ammount of Windings, the real calculations can be bit excessive.

For simpler Charging systems allmost an estimated Value give you a good indicator of what you need to get a quick result.

 

The biggest dis on this Engines was the continouse disassemble of the Enginecover,

while it it also fixed with the Headbolts.

 

A Coil with about 86 turns is at least a good Way to start.

a96 Wdgs. Is just recommended for an more experienced Coil winding machine like Gregor is now.. 😎

 

 

@Gregor i was Curious how much shortcut Amperes your Coils can deliver.

 

To measure this, 

disconnect the Coil leads from the Diodes, to be able to measure just the Coils.

- that is important, because i don‘t know how much Amperes this diode will last -

 

connect 3 or maybe 4 H1 or H7 bulbs parallel direct onto the Coils end

and use your Clamp Ammeter in A AC setting on the middle Section where the Coils go to the Ground to see the result.

 

 

Or each coil on a separate measure and add this 2 Values.

 

 

It should be somewhere between 4- 8A together in AC ( any Voltage drop doesn‘t interest in this measurement)

 

[Gregor 4,846]

@Tractorhead   Is this correct?

55  watt  12.8 volt

 

 

 

Edited January 22, 2021 by Gregor

[Tractorhead 9,064]

Yap, so i meant.

correct

[Gregor 4,846]

5.2 amps @3600 RPM.  The bulbs don't light up. My tail light bulb lit up.

[Tractorhead 9,064]

Thanks !

 

All is ok,

so we are exactly in my estimated max. amp Range.

Thanks for that additional crosscheck more to stabilize again my own results.

 

 

[Gregor 4,846]

No problem.

 

BTW  1 bulb  3.5 amps bright light

 

          2 bulb   4.7 amps  dim light

 

          3 bulb   5.0  amps  very dim

 

           4 bulb   5.2  amps  no light

Edited January 22, 2021 by Gregor

[Tractorhead 9,064]

58 minutes ago, Gregor said:

No problem.

 

BTW  1 bulb  3.5 amps bright light

 

          2 bulb   4.7 amps  dim light

 

          3 bulb   5.0  amps  very dim

 

           4 bulb   5.2  amps  no light

 

That confirms the thumb rule.

The thumbrule is 2/3 of Shortcut current is the maximal Load your charging system can troublefree continousely provide.

if your loads above that level, the Voltage will drop.

 

so in fact your System is able to support  = 41,6 Watts total @12V

or 3,46A at 12V

 

Edited January 22, 2021 by Tractorhead